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feat(screenshot): extend e-ink screenshot support via GxEPD2 patch

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- Add lib/GxEPD2-patch/src/GxEPD2_BW.h: local patched copy of GxEPD2_BW.h
  that exposes getBuffer()/getBufferSize() under ENABLE_SCREENSHOT guard.
  Include guard (_GxEPD2_BW_H_) prevents double-inclusion of the installed
  library version.

- GxEPDDisplay.h: use patched header via relative include when
  ENABLE_SCREENSHOT so the patch takes precedence over the installed lib
  (PlatformIO adds library paths before -I build_flags).

- DisplayDriver.h: add virtual getBuffer()/getBufferSize()/getDisplayType()
  defaults (nullptr/0/0) under ENABLE_SCREENSHOT.

- SH1106Display.h / SSD1306Display.h / GxEPDDisplay.h: add concrete overrides;
  getDisplayType() returns 0 (OLED) or 1 (e-ink).

- MyMesh.cpp/h: replace fragile C-cast with virtual dispatch in
  handleScreenshotRequest(); extend 5-byte header to 6 bytes by appending
  display_type so the host tool can decode the correct pixel layout.

- tools/screenshot.py: parse 6-byte header; add eink_buffer_to_image()
  that decodes the row-major MSB-first GxEPD2 buffer with DISPLAY_ROTATION=1
  (phys_x = 127-ly, phys_y = lx); dispatch on display_type.

- variants/wio-tracker-l1-eink/platformio.ini: add
  [env:WioTrackerL1Eink_companion_dual_dev] with ENABLE_SCREENSHOT.
- variants/wio-tracker-l1/platformio.ini: unchanged (OLED env already exists).

Builds verified: WioTrackerL1Eink_companion_dual_dev SUCCESS,
                 WioTrackerL1Eink_companion_radio_ble SUCCESS (unaffected).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-05-28 01:03:47 +02:00
parent c92264c21e
commit 7d9d5f847d
10 changed files with 916 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
examples/companion_radio/MyMesh.cpp
View File

@@ -2084,28 +2084,12 @@ void MyMesh::handleScreenshotRequest() {
return;
}
uint8_t* buffer = nullptr;
int bufferSize = 0;
// Try SH1106Display first (used by Wio L1)
// Use C-style cast since RTTI is disabled (-fno-rtti)
SH1106Display* sh1106 = (SH1106Display*)display;
if (sh1106) {
buffer = sh1106->getBuffer();
bufferSize = (display->width() * display->height()) / 8;
} else {
// Fallback: try SSD1306Display
SSD1306Display* ssd1306 = (SSD1306Display*)display;
if (ssd1306) {
buffer = ssd1306->getBuffer();
bufferSize = (display->width() * display->height()) / 8;
}
}
const uint8_t* buffer = display->getBuffer();
uint16_t bufferSize = display->getBufferSize();
if (buffer && bufferSize > 0) {
sendScreenshotResponse(display, buffer, bufferSize);
} else {
// No supported display type
writeErrFrame(ERR_CODE_UNSUPPORTED_CMD);
}
#else
@@ -2113,23 +2097,23 @@ void MyMesh::handleScreenshotRequest() {
#endif
}
void MyMesh::sendScreenshotResponse(DisplayDriver* display, uint8_t* buffer, int bufferSize) {
// MAX_FRAME_SIZE is 172 bytes, but we need to send 1026 bytes (3 header + 1024 buffer)
// We need to split into multiple frames
// Frame format: RESP_CODE_SCREENSHOT, width, height, chunk_index, total_chunks, [chunk_data...]
const int MAX_DATA_PER_FRAME = MAX_FRAME_SIZE - 5; // 5 bytes header
void MyMesh::sendScreenshotResponse(DisplayDriver* display, const uint8_t* buffer, uint16_t bufferSize) {
// Frame format: RESP_CODE_SCREENSHOT, width, height, chunk_idx, total_chunks, display_type, [data]
// display_type: 0=OLED (page-based), 1=e-ink (row-major, MSB-first, 1=white/0=black)
const int HEADER_SIZE = 6;
const int MAX_DATA_PER_FRAME = MAX_FRAME_SIZE - HEADER_SIZE;
int totalChunks = (bufferSize + MAX_DATA_PER_FRAME - 1) / MAX_DATA_PER_FRAME;
for (int chunkIdx = 0; chunkIdx < totalChunks; chunkIdx++) {
int i = 0;
out_frame[i++] = RESP_CODE_SCREENSHOT;
out_frame[i++] = display->width();
out_frame[i++] = display->height();
out_frame[i++] = chunkIdx;
out_frame[i++] = totalChunks;
out_frame[i++] = (uint8_t)display->width();
out_frame[i++] = (uint8_t)display->height();
out_frame[i++] = (uint8_t)chunkIdx;
out_frame[i++] = (uint8_t)totalChunks;
out_frame[i++] = display->getDisplayType();
int chunkSize = min(MAX_DATA_PER_FRAME, bufferSize - chunkIdx * MAX_DATA_PER_FRAME);
int chunkSize = min(MAX_DATA_PER_FRAME, (int)bufferSize - chunkIdx * MAX_DATA_PER_FRAME);
memcpy(&out_frame[i], buffer + chunkIdx * MAX_DATA_PER_FRAME, chunkSize);
i += chunkSize;

2
examples/companion_radio/MyMesh.h
View File

@@ -229,7 +229,7 @@ private:
bool isValidClientRepeatFreq(uint32_t f) const;
#ifdef ENABLE_SCREENSHOT
void handleScreenshotRequest();
void sendScreenshotResponse(DisplayDriver* display, uint8_t* buffer, int bufferSize);
void sendScreenshotResponse(DisplayDriver* display, const uint8_t* buffer, uint16_t bufferSize);
#endif
UITask* getUITask() { return (UITask*)_ui; }

765
lib/GxEPD2-patch/src/GxEPD2_BW.h Normal file
View File

@@ -0,0 +1,765 @@
// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
//
// Display Library based on Demo Example from Good Display: https://www.good-display.com/companyfile/32/
//
// Author: Jean-Marc Zingg
//
// Version: see library.properties
//
// Library: https://github.com/ZinggJM/GxEPD2
#ifndef _GxEPD2_BW_H_
#define _GxEPD2_BW_H_
// uncomment next line to use class GFX of library GFX_Root instead of Adafruit_GFX
//#include <GFX.h>
#ifndef ENABLE_GxEPD2_GFX
// default is off
#define ENABLE_GxEPD2_GFX 0
#endif
#if ENABLE_GxEPD2_GFX
#include "GxEPD2_GFX.h"
#define GxEPD2_GFX_BASE_CLASS GxEPD2_GFX
#elif defined(_GFX_H_)
#define GxEPD2_GFX_BASE_CLASS GFX
#else
#include <Adafruit_GFX.h>
#define GxEPD2_GFX_BASE_CLASS Adafruit_GFX
#endif
#include "GxEPD2_EPD.h"
// for __has_include see https://en.cppreference.com/w/cpp/preprocessor/include
// see also https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
// #if !defined(__has_include) || __has_include("epd/GxEPD2_102.h") is not portable!
#if defined __has_include
# if __has_include("GxEPD2.h")
# // __has_include can be used
# else
# // __has_include doesn't work for us, include anyway
# undef __has_include
# define __has_include(x) true
# endif
#else
# // no __has_include, include anyway
# define __has_include(x) true
#endif
#if __has_include("epd/GxEPD2_102.h")
#include "epd/GxEPD2_102.h"
#endif
#if __has_include("epd/GxEPD2_150_BN.h")
#include "epd/GxEPD2_150_BN.h"
#endif
#if __has_include("epd/GxEPD2_154.h")
#include "epd/GxEPD2_154.h"
#endif
#if __has_include("epd/GxEPD2_154_D67.h")
#include "epd/GxEPD2_154_D67.h"
#endif
#if __has_include("epd/GxEPD2_154_T8.h")
#include "epd/GxEPD2_154_T8.h"
#endif
#if __has_include("epd/GxEPD2_154_M09.h")
#include "epd/GxEPD2_154_M09.h"
#endif
#if __has_include("epd/GxEPD2_154_M10.h")
#include "epd/GxEPD2_154_M10.h"
#endif
#if __has_include("gdey/GxEPD2_154_GDEY0154D67.h")
#include "gdey/GxEPD2_154_GDEY0154D67.h"
#endif
#if __has_include("epd/GxEPD2_213.h")
#include "epd/GxEPD2_213.h"
#endif
#if __has_include("epd/GxEPD2_213_B72.h")
#include "epd/GxEPD2_213_B72.h"
#endif
#if __has_include("epd/GxEPD2_213_B73.h")
#include "epd/GxEPD2_213_B73.h"
#endif
#if __has_include("epd/GxEPD2_213_B74.h")
#include "epd/GxEPD2_213_B74.h"
#endif
#if __has_include("epd/GxEPD2_213_flex.h")
#include "epd/GxEPD2_213_flex.h"
#endif
#if __has_include("epd/GxEPD2_213_M21.h")
#include "epd/GxEPD2_213_M21.h"
#endif
#if __has_include("epd/GxEPD2_213_T5D.h")
#include "epd/GxEPD2_213_T5D.h"
#endif
#if __has_include("epd/GxEPD2_213_BN.h")
#include "epd/GxEPD2_213_BN.h"
#endif
#if __has_include("gdey/GxEPD2_213_GDEY0213B74.h")
#include "gdey/GxEPD2_213_GDEY0213B74.h"
#endif
#if __has_include("epd/GxEPD2_260.h")
#include "epd/GxEPD2_260.h"
#endif
#if __has_include("epd/GxEPD2_260_M01.h")
#include "epd/GxEPD2_260_M01.h"
#endif
#if __has_include("epd/GxEPD2_266_BN.h")
#include "epd/GxEPD2_266_BN.h"
#endif
#if __has_include("gdey/GxEPD2_266_GDEY0266T90.h")
#include "gdey/GxEPD2_266_GDEY0266T90.h"
#endif
#if __has_include("epd/GxEPD2_290.h")
#include "epd/GxEPD2_290.h"
#endif
#if __has_include("epd/GxEPD2_290_T5.h")
#include "epd/GxEPD2_290_T5.h"
#endif
#if __has_include("epd/GxEPD2_290_T5D.h")
#include "epd/GxEPD2_290_T5D.h"
#endif
#if __has_include("epd/GxEPD2_290_I6FD.h")
#include "epd/GxEPD2_290_I6FD.h"
#endif
#if __has_include("epd/GxEPD2_290_M06.h")
#include "epd/GxEPD2_290_M06.h"
#endif
#if __has_include("epd/GxEPD2_290_T94.h")
#include "epd/GxEPD2_290_T94.h"
#endif
#if __has_include("gdey/GxEPD2_290_GDEY029T94.h")
#include "gdey/GxEPD2_290_GDEY029T94.h"
#endif
#if __has_include("epd/GxEPD2_290_T94_V2.h")
#include "epd/GxEPD2_290_T94_V2.h"
#endif
#if __has_include("epd/GxEPD2_290_BS.h")
#include "epd/GxEPD2_290_BS.h"
#endif
#if __has_include("gdey/GxEPD2_290_GDEY029T71H.h")
#include "gdey/GxEPD2_290_GDEY029T71H.h"
#endif
#if __has_include("epd/GxEPD2_270.h")
#include "epd/GxEPD2_270.h"
#endif
#if __has_include("gdey/GxEPD2_270_GDEY027T91.h")
#include "gdey/GxEPD2_270_GDEY027T91.h"
#endif
#if __has_include("gdeq/GxEPD2_310_GDEQ031T10.h")
#include "gdeq/GxEPD2_310_GDEQ031T10.h"
#endif
#if __has_include("epd/GxEPD2_371.h")
#include "epd/GxEPD2_371.h"
#endif
#if __has_include("epd/GxEPD2_370_TC1.h")
#include "epd/GxEPD2_370_TC1.h"
#endif
#if __has_include("epd/GxEPD2_420.h")
#include "epd/GxEPD2_420.h"
#endif
#if __has_include("epd/GxEPD2_420_M01.h")
#include "epd/GxEPD2_420_M01.h"
#endif
#if __has_include("gdey/GxEPD2_420_GDEY042T81.h")
#include "gdey/GxEPD2_420_GDEY042T81.h"
#endif
#if __has_include("other/GxEPD2_420_GYE042A87.h")
#include "other/GxEPD2_420_GYE042A87.h"
#endif
#if __has_include("other/GxEPD2_420_SE0420NQ04.h")
#include "other/GxEPD2_420_SE0420NQ04.h"
#endif
#if __has_include("gdeq/GxEPD2_426_GDEQ0426T82.h")
#include "gdeq/GxEPD2_426_GDEQ0426T82.h"
#endif
#if __has_include("gdey/GxEPD2_579_GDEY0579T93.h")
#include "gdey/GxEPD2_579_GDEY0579T93.h"
#endif
#if __has_include("epd/GxEPD2_583.h")
#include "epd/GxEPD2_583.h"
#endif
#if __has_include("epd/GxEPD2_583_T8.h")
#include "epd/GxEPD2_583_T8.h"
#endif
#if __has_include("gdeq/GxEPD2_583_GDEQ0583T31.h")
#include "gdeq/GxEPD2_583_GDEQ0583T31.h"
#endif
#if __has_include("epd/GxEPD2_750.h")
#include "epd/GxEPD2_750.h"
#endif
#if __has_include("epd/GxEPD2_750_T7.h")
#include "epd/GxEPD2_750_T7.h"
#endif
#if __has_include("gdey/GxEPD2_750_GDEY075T7.h")
#include "gdey/GxEPD2_750_GDEY075T7.h"
#endif
#if __has_include("gdem/GxEPD2_1020_GDEM102T91.h")
#include "gdem/GxEPD2_1020_GDEM102T91.h"
#endif
#if __has_include("gdem/GxEPD2_1085_GDEM1085T51.h")
#include "gdem/GxEPD2_1085_GDEM1085T51.h"
#endif
#if __has_include("epd/GxEPD2_1160_T91.h")
#include "epd/GxEPD2_1160_T91.h"
#endif
#if __has_include("gdem/GxEPD2_1330_GDEM133T91.h")
#include "gdem/GxEPD2_1330_GDEM133T91.h"
#endif
#if __has_include("epd/GxEPD2_1248.h")
#include "epd/GxEPD2_1248.h"
#endif
#if __has_include("it8951/GxEPD2_it60.h")
#include "it8951/GxEPD2_it60.h"
#endif
#if __has_include("it8951/GxEPD2_it60_1448x1072.h")
#include "it8951/GxEPD2_it60_1448x1072.h"
#endif
#if __has_include("it8951/GxEPD2_it78_1872x1404.h")
#include "it8951/GxEPD2_it78_1872x1404.h"
#endif
#if __has_include("it8951/GxEPD2_it103_1872x1404.h")
#include "it8951/GxEPD2_it103_1872x1404.h"
#endif
template<typename GxEPD2_Type, const uint16_t page_height>
class GxEPD2_BW : public GxEPD2_GFX_BASE_CLASS
{
public:
GxEPD2_Type epd2;
#ifdef ENABLE_SCREENSHOT
// Expose framebuffer for screenshot capture.
// This file is a patched copy kept in lib/GxEPD2-patch/src/ and tracked by git.
const uint8_t* getBuffer() { return _buffer; }
uint16_t getBufferSize() { return sizeof(_buffer); }
#endif
#if ENABLE_GxEPD2_GFX
GxEPD2_BW(GxEPD2_Type epd2_instance) : GxEPD2_GFX_BASE_CLASS(epd2, GxEPD2_Type::WIDTH_VISIBLE, GxEPD2_Type::HEIGHT), epd2(epd2_instance)
#else
GxEPD2_BW(GxEPD2_Type epd2_instance) : GxEPD2_GFX_BASE_CLASS(GxEPD2_Type::WIDTH_VISIBLE, GxEPD2_Type::HEIGHT), epd2(epd2_instance)
#endif
{
_page_height = page_height;
_pages = (HEIGHT / _page_height) + ((HEIGHT % _page_height) > 0);
_reverse = (epd2_instance.panel == GxEPD2::GDE0213B1);
_mirror = false;
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
uint16_t pages()
{
return _pages;
}
uint16_t pageHeight()
{
return _page_height;
}
bool mirror(bool m)
{
_swap_ (_mirror, m);
return m;
}
void drawPixel(int16_t x, int16_t y, uint16_t color)
{
if ((x < 0) || (x >= width()) || (y < 0) || (y >= height())) return;
if (_mirror) x = width() - x - 1;
// check rotation, move pixel around if necessary
switch (getRotation())
{
case 1:
_swap_(x, y);
x = WIDTH - x - 1;
break;
case 2:
x = WIDTH - x - 1;
y = HEIGHT - y - 1;
break;
case 3:
_swap_(x, y);
y = HEIGHT - y - 1;
break;
}
// transpose partial window to 0,0
x -= _pw_x;
if (!_reverse) y -= _pw_y;
else y = HEIGHT - _pw_y - y - 1;
// clip to (partial) window
if ((x < 0) || (x >= int16_t(_pw_w)) || (y < 0) || (y >= int16_t(_pw_h))) return;
// adjust for current page
y -= _current_page * _page_height;
// check if in current page
if ((y < 0) || (y >= int16_t(_page_height))) return;
uint16_t i = x / 8 + y * (_pw_w / 8);
if (color)
_buffer[i] = (_buffer[i] | (1 << (7 - x % 8)));
else
_buffer[i] = (_buffer[i] & (0xFF ^ (1 << (7 - x % 8))));
}
void init(uint32_t serial_diag_bitrate = 0) // = 0 : disabled
{
epd2.init(serial_diag_bitrate);
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
// init method with additional parameters:
// initial false for re-init after processor deep sleep wake up, if display power supply was kept
// this can be used to avoid the repeated initial full refresh on displays with fast partial update
// NOTE: garbage will result on fast partial update displays, if initial full update is omitted after power loss
// reset_duration = 10 is default; a value of 2 may help with "clever" reset circuit of newer boards from Waveshare
// pulldown_rst_mode true for alternate RST handling to avoid feeding 5V through RST pin
void init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration = 10, bool pulldown_rst_mode = false)
{
epd2.init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
// init method with additional parameters:
// SPIClass& spi: either SPI or alternate HW SPI channel
// SPISettings spi_settings: e.g. for higher SPI speed selection
void init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration, bool pulldown_rst_mode, SPIClass& spi, SPISettings spi_settings)
{
epd2.selectSPI(spi, spi_settings);
epd2.init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
// release SPI and control pins
void end()
{
epd2.end();
}
void fillScreen(uint16_t color) // 0x0 black, >0x0 white, to buffer
{
uint8_t data = (color == GxEPD_BLACK) ? 0x00 : 0xFF;
for (uint16_t x = 0; x < sizeof(_buffer); x++)
{
_buffer[x] = data;
}
}
// display buffer content to screen, useful for full screen buffer
void display(bool partial_update_mode = false)
{
if (partial_update_mode) epd2.writeImage(_buffer, 0, 0, GxEPD2_Type::WIDTH, _page_height);
else epd2.writeImageForFullRefresh(_buffer, 0, 0, GxEPD2_Type::WIDTH, _page_height);
epd2.refresh(partial_update_mode);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, 0, 0, GxEPD2_Type::WIDTH, _page_height);
}
if (!partial_update_mode) epd2.powerOff();
}
// display part of buffer content to screen, useful for full screen buffer
// displayWindow, use parameters according to actual rotation.
// x and w should be multiple of 8, for rotation 0 or 2,
// y and h should be multiple of 8, for rotation 1 or 3,
// else window is increased as needed,
// this is an addressing limitation of the e-paper controllers
void displayWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
x = gx_uint16_min(x, width());
y = gx_uint16_min(y, height());
w = gx_uint16_min(w, width() - x);
h = gx_uint16_min(h, height() - y);
_rotate(x, y, w, h);
uint16_t y_part = _reverse ? HEIGHT - h - y : y;
epd2.writeImagePart(_buffer, x, y_part, GxEPD2_Type::WIDTH, _page_height, x, y_part, w, h);
epd2.refresh(x, y_part, w, h);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImagePartAgain(_buffer, x, y_part, GxEPD2_Type::WIDTH, _page_height, x, y_part, w, h);
}
}
void setFullWindow()
{
_using_partial_mode = false;
_pw_x = 0;
_pw_y = 0;
_pw_w = GxEPD2_Type::WIDTH;
_pw_h = HEIGHT;
}
// setPartialWindow, use parameters according to actual rotation.
// x and w should be multiple of 8, for rotation 0 or 2,
// y and h should be multiple of 8, for rotation 1 or 3,
// else window is increased as needed,
// this is an addressing limitation of the e-paper controllers
void setPartialWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
_pw_x = gx_uint16_min(x, width());
_pw_y = gx_uint16_min(y, height());
_pw_w = gx_uint16_min(w, width() - _pw_x);
_pw_h = gx_uint16_min(h, height() - _pw_y);
_rotate(_pw_x, _pw_y, _pw_w, _pw_h);
_using_partial_mode = true;
// make _pw_x, _pw_w multiple of 8
_pw_w += _pw_x % 8;
if (_pw_w % 8 > 0) _pw_w += 8 - _pw_w % 8;
_pw_x -= _pw_x % 8;
if (_reverse) _pw_y = HEIGHT - _pw_h - _pw_y;
}
void firstPage()
{
fillScreen(GxEPD_WHITE);
_current_page = 0;
_second_phase = false;
}
bool nextPage()
{
if (1 == _pages)
{
if (_using_partial_mode)
{
epd2.writeImage(_buffer, _pw_x, _pw_y, _pw_w, _pw_h);
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, _pw_x, _pw_y, _pw_w, _pw_h);
//epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h); // not needed
}
}
else // full update
{
epd2.writeImageForFullRefresh(_buffer, 0, 0, GxEPD2_Type::WIDTH, HEIGHT);
epd2.refresh(false);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, 0, 0, GxEPD2_Type::WIDTH, HEIGHT);
//epd2.refresh(true); // not needed
}
epd2.powerOff();
}
return false;
}
uint16_t page_ys = _current_page * _page_height;
if (_using_partial_mode)
{
//Serial.print(" nextPage("); Serial.print(_pw_x); Serial.print(", "); Serial.print(_pw_y); Serial.print(", ");
//Serial.print(_pw_w); Serial.print(", "); Serial.print(_pw_h); Serial.print(") P"); Serial.println(_current_page);
uint16_t page_ye = _current_page < int16_t(_pages - 1) ? page_ys + _page_height : HEIGHT;
uint16_t dest_ys = _pw_y + page_ys; // transposed
uint16_t dest_ye = gx_uint16_min(_pw_y + _pw_h, _pw_y + page_ye);
if (dest_ye > dest_ys)
{
//Serial.print("writeImage("); Serial.print(_pw_x); Serial.print(", "); Serial.print(dest_ys); Serial.print(", ");
//Serial.print(_pw_w); Serial.print(", "); Serial.print(dest_ye - dest_ys); Serial.println(")");
if (!_second_phase) epd2.writeImage(_buffer, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
else epd2.writeImageAgain(_buffer, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
}
else
{
//Serial.print("writeImage("); Serial.print(_pw_x); Serial.print(", "); Serial.print(dest_ys); Serial.print(", ");
//Serial.print(_pw_w); Serial.print(", "); Serial.print(dest_ye - dest_ys); Serial.print(") skipped ");
//Serial.print(dest_ys); Serial.print(".."); Serial.println(dest_ye);
}
_current_page++;
if (_current_page == int16_t(_pages))
{
_current_page = 0;
if (!_second_phase)
{
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (epd2.hasFastPartialUpdate)
{
_second_phase = true;
fillScreen(GxEPD_WHITE);
return true;
}
}
return false;
}
fillScreen(GxEPD_WHITE);
return true;
}
else // full update
{
if (!_second_phase) epd2.writeImageForFullRefresh(_buffer, 0, page_ys, GxEPD2_Type::WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
else epd2.writeImageAgain(_buffer, 0, page_ys, GxEPD2_Type::WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
_current_page++;
if (_current_page == int16_t(_pages))
{
_current_page = 0;
if (epd2.hasFastPartialUpdate)
{
if (!_second_phase)
{
epd2.refresh(false); // full update after first phase
_second_phase = true;
fillScreen(GxEPD_WHITE);
return true;
}
//else epd2.refresh(true); // partial update after second phase
} else epd2.refresh(false); // full update after only phase
epd2.powerOff();
return false;
}
fillScreen(GxEPD_WHITE);
return true;
}
}
// GxEPD style paged drawing; drawCallback() is called as many times as needed
void drawPaged(void (*drawCallback)(const void*), const void* pv)
{
if (1 == _pages)
{
fillScreen(GxEPD_WHITE);
drawCallback(pv);
if (_using_partial_mode)
{
epd2.writeImage(_buffer, _pw_x, _pw_y, _pw_w, _pw_h);
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, _pw_x, _pw_y, _pw_w, _pw_h);
//epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h); // not needed
}
}
else // full update
{
epd2.writeImageForFullRefresh(_buffer, 0, 0, GxEPD2_Type::WIDTH, HEIGHT);
epd2.refresh(false);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, 0, 0, GxEPD2_Type::WIDTH, HEIGHT);
//epd2.refresh(true); // not needed
epd2.powerOff();
}
}
return;
}
if (_using_partial_mode)
{
for (uint16_t phase = 1; phase <= 2; phase++)
{
for (_current_page = 0; _current_page < _pages; _current_page++)
{
uint16_t page_ys = _current_page * _page_height;
uint16_t page_ye = _current_page < (_pages - 1) ? page_ys + _page_height : HEIGHT;
uint16_t dest_ys = _pw_y + page_ys; // transposed
uint16_t dest_ye = gx_uint16_min(_pw_y + _pw_h, _pw_y + page_ye);
if (dest_ye > dest_ys)
{
fillScreen(GxEPD_WHITE);
drawCallback(pv);
if (phase == 1) epd2.writeImage(_buffer, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
else epd2.writeImageAgain(_buffer, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
}
}
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (!epd2.hasFastPartialUpdate) break;
// else make both controller buffers have equal content
}
}
else // full update
{
for (_current_page = 0; _current_page < _pages; _current_page++)
{
uint16_t page_ys = _current_page * _page_height;
fillScreen(GxEPD_WHITE);
drawCallback(pv);
epd2.writeImageForFullRefresh(_buffer, 0, page_ys, GxEPD2_Type::WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
}
epd2.refresh(false); // full update after first phase
if (epd2.hasFastPartialUpdate)
{
// make both controller buffers have equal content
for (_current_page = 0; _current_page < _pages; _current_page++)
{
uint16_t page_ys = _current_page * _page_height;
fillScreen(GxEPD_WHITE);
drawCallback(pv);
epd2.writeImageAgain(_buffer, 0, page_ys, GxEPD2_Type::WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
}
//epd2.refresh(true); // partial update after second phase // not needed
}
epd2.powerOff();
}
_current_page = 0;
}
void drawInvertedBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color)
{
// taken from Adafruit_GFX.cpp, modified
int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
uint8_t byte = 0;
for (int16_t j = 0; j < h; j++)
{
for (int16_t i = 0; i < w; i++ )
{
if (i & 7) byte <<= 1;
else
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
byte = pgm_read_byte(&bitmap[j * byteWidth + i / 8]);
#else
byte = bitmap[j * byteWidth + i / 8];
#endif
}
if (!(byte & 0x80))
{
drawPixel(x + i, y + j, color);
}
}
}
}
// Support for Bitmaps (Sprites) to Controller Buffer and to Screen
void clearScreen(uint8_t value = 0xFF) // init controller memory and screen (default white)
{
epd2.clearScreen(value);
}
void writeScreenBuffer(uint8_t value = 0xFF) // init controller memory (default white)
{
epd2.writeScreenBuffer(value);
}
// write to controller memory, without screen refresh; x and w should be multiple of 8
void writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.writeImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void writeImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.writeImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.writeImage(black, color, x, y, w, h, invert, mirror_y, pgm);
}
void writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.writeImage(black, color, x, y, w, h, false, false, false);
}
void writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.writeImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.writeImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, false, false, false);
}
// write sprite of native data to controller memory, without screen refresh; x and w should be multiple of 8
void writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.writeNative(data1, data2, x, y, w, h, invert, mirror_y, pgm);
}
// write to controller memory, with screen refresh; x and w should be multiple of 8
void drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.drawImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void drawImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.drawImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.drawImage(black, color, x, y, w, h, invert, mirror_y, pgm);
}
void drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.drawImage(black, color, x, y, w, h, false, false, false);
}
void drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.drawImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.drawImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, false, false, false);
}
// write sprite of native data to controller memory, with screen refresh; x and w should be multiple of 8
void drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.drawNative(data1, data2, x, y, w, h, invert, mirror_y, pgm);
}
void refresh(bool partial_update_mode = false) // screen refresh from controller memory to full screen
{
epd2.refresh(partial_update_mode);
if (!partial_update_mode) epd2.powerOff();
}
void refresh(int16_t x, int16_t y, int16_t w, int16_t h) // screen refresh from controller memory, partial screen
{
epd2.refresh(x, y, w, h);
}
// turns off generation of panel driving voltages, avoids screen fading over time
void powerOff()
{
epd2.powerOff();
}
// turns powerOff() and sets controller to deep sleep for minimum power use, ONLY if wakeable by RST (rst >= 0)
void hibernate()
{
epd2.hibernate();
}
private:
template <typename T> static inline void
_swap_(T & a, T & b)
{
T t = a;
a = b;
b = t;
};
static inline uint16_t gx_uint16_min(uint16_t a, uint16_t b)
{
return (a < b ? a : b);
};
static inline uint16_t gx_uint16_max(uint16_t a, uint16_t b)
{
return (a > b ? a : b);
};
void _rotate(uint16_t& x, uint16_t& y, uint16_t& w, uint16_t& h)
{
switch (getRotation())
{
case 1:
_swap_(x, y);
_swap_(w, h);
x = WIDTH - x - w;
break;
case 2:
x = WIDTH - x - w;
y = HEIGHT - y - h;
break;
case 3:
_swap_(x, y);
_swap_(w, h);
y = HEIGHT - y - h;
break;
}
}
private:
uint8_t _buffer[(GxEPD2_Type::WIDTH / 8) * page_height];
bool _using_partial_mode, _second_phase, _mirror, _reverse;
uint16_t _width_bytes, _pixel_bytes;
int16_t _current_page;
uint16_t _pages, _page_height;
uint16_t _pw_x, _pw_y, _pw_w, _pw_h;
};
#endif

8
src/helpers/ui/DisplayDriver.h
View File

@@ -247,4 +247,12 @@ public:
virtual void setDisplayRotation(uint8_t rot) { } // 0-3, no-op for fixed-orientation displays
virtual void setFullRefreshInterval(uint8_t n) { } // e-ink: do full refresh every n partial refreshes (0=never)
virtual void endFrame() = 0;
#ifdef ENABLE_SCREENSHOT
// Screenshot support — return raw framebuffer and its size in bytes.
// 0=OLED (page-based, column-major), 1=e-ink (row-major, MSB-first, 1=white/0=black).
virtual const uint8_t* getBuffer() { return nullptr; }
virtual uint16_t getBufferSize() { return 0; }
virtual uint8_t getDisplayType() { return 0; }
#endif
};

14
src/helpers/ui/GxEPDDisplay.h
View File

@@ -5,7 +5,15 @@
#define ENABLE_GxEPD2_GFX 0
// When ENABLE_SCREENSHOT is active, use the patched copy of GxEPD2_BW.h from
// lib/GxEPD2-patch/src/ that exposes getBuffer()/getBufferSize(). The include
// guard (_GxEPD2_BW_H_) then prevents the installed library version from
// being compiled again. Non-screenshot builds use the installed library as-is.
#ifdef ENABLE_SCREENSHOT
#include "../../../lib/GxEPD2-patch/src/GxEPD2_BW.h"
#else
#include <GxEPD2_BW.h>
#endif
#include <GxEPD2_3C.h>
#include <GxEPD2_4C.h>
#include <GxEPD2_7C.h>
@@ -70,6 +78,12 @@ public:
display(GxEPD2_150_BN(DISP_CS, DISP_DC, DISP_RST, DISP_BUSY)) {}
#endif
#ifdef ENABLE_SCREENSHOT
const uint8_t* getBuffer() override { return display.getBuffer(); }
uint16_t getBufferSize() override { return display.getBufferSize(); }
uint8_t getDisplayType() override { return 1; } // 1 = e-ink
#endif
// Line height and approx. char width for each font size:
// 1 = FreeSans9pt (lineH=16, charW≈9)
// 2 = FreeSansBold12pt (lineH=20, charW≈12)

5
src/helpers/ui/SH1106Display.h
View File

@@ -60,7 +60,8 @@ public:
void endFrame() override;
#ifdef ENABLE_SCREENSHOT
// Screenshot support
uint8_t* getBuffer() { return display.getBuffer(); }
const uint8_t* getBuffer() override { return display.getBuffer(); }
uint16_t getBufferSize() override { return (uint16_t)((width() * height()) / 8); }
uint8_t getDisplayType() override { return 0; }
#endif
};

5
src/helpers/ui/SSD1306Display.h
View File

@@ -47,7 +47,8 @@ public:
void endFrame() override;
#ifdef ENABLE_SCREENSHOT
// Screenshot support
uint8_t* getBuffer() { return display.getBuffer(); }
const uint8_t* getBuffer() override { return display.getBuffer(); }
uint16_t getBufferSize() override { return (uint16_t)((width() * height()) / 8); }
uint8_t getDisplayType() override { return 0; }
#endif
};

131
tools/screenshot.py
View File

@@ -1,6 +1,6 @@
#!/usr/bin/env python3
"""
Screenshot tool for Wio L1 Tracker Pro with SH1106 display.
Screenshot tool for Wio L1 Tracker Pro (OLED SH1106 and e-ink GxEPD2).
Connects via USB serial using mesh companion protocol, captures framebuffer, saves as PNG.
Usage:
@@ -26,14 +26,19 @@ FRAME_START_IN = 0x3E # '>' - used when receiving FROM device
CMD_GET_SCREENSHOT = 66
RESP_CODE_SCREENSHOT = 29
RESP_CODE_ERR = 1
DISPLAY_WIDTH = 128
DISPLAY_HEIGHT = 64
BUFFER_SIZE = (DISPLAY_WIDTH * DISPLAY_HEIGHT) // 8 # 1024 bytes
# display_type values (byte [5] in response frame)
DISPLAY_TYPE_OLED = 0 # page-based, column-major (SH1106/SSD1306)
DISPLAY_TYPE_EINK = 1 # row-major, MSB-first, 1=white/0=black (GxEPD2)
# E-ink panel constants for GxEPD2_213_B74 / GxEPD2_213_BN
EINK_PHYS_WIDTH = 128 # full hardware width including invisible columns
EINK_VISIBLE_W = 122 # WIDTH_VISIBLE — columns actually shown on panel
def parse_args():
parser = argparse.ArgumentParser(
description="Capture screenshots from Wio L1 Tracker Pro with SH1106 display"
description="Capture screenshots from Wio L1 Tracker Pro (OLED or e-ink)"
)
parser.add_argument(
"--port", "-p", help="Serial port to use (default: auto-detect)"
@@ -101,11 +106,16 @@ def send_command(ser, command, data=b""):
def receive_screenshot(ser, timeout=5):
"""Receive screenshot data (may be split across multiple frames)"""
"""Receive screenshot data (may be split across multiple frames).
Frame format: RESP_CODE_SCREENSHOT, width, height, chunk_idx,
total_chunks, display_type, [chunk_data...]
"""
start_time = time.time()
buffer_data = bytearray()
width = None
height = None
display_type = None
total_chunks = None
received_chunks = 0
@@ -114,24 +124,26 @@ def receive_screenshot(ser, timeout=5):
if frame is None:
continue
if len(frame) < 5:
if len(frame) < 6:
print(f"Error: Frame too short: {len(frame)} bytes")
return None
resp_code = frame[0]
if resp_code == RESP_CODE_SCREENSHOT:
w = frame[1]
h = frame[2]
chunk_idx = frame[3]
num_chunks = frame[4]
chunk_data = frame[5:]
w = frame[1]
h = frame[2]
chunk_idx = frame[3]
num_chunks = frame[4]
disp_type = frame[5]
chunk_data = frame[6:]
if chunk_idx == 0:
width = w
height = h
total_chunks = num_chunks
buffer_data = bytearray()
width = w
height = h
display_type = disp_type
total_chunks = num_chunks
buffer_data = bytearray()
received_chunks = 0
if width is None or width != w or height != h:
@@ -146,14 +158,7 @@ def receive_screenshot(ser, timeout=5):
received_chunks += 1
if received_chunks >= total_chunks:
expected_size = (width * height) // 8
if len(buffer_data) == expected_size:
return bytes(buffer_data), width, height
else:
print(
f"Error: Expected {expected_size} bytes, got {len(buffer_data)}"
)
return None
return bytes(buffer_data), width, height, display_type
elif resp_code == RESP_CODE_ERR:
print("Error: Device returned error")
@@ -168,13 +173,13 @@ def receive_screenshot(ser, timeout=5):
return None
def buffer_to_image(buffer, width, height, scale=1):
"""Convert SH1106/SH1106 framebuffer to PIL Image with white text on black background and black frame"""
def oled_buffer_to_image(buffer, width, height):
"""Decode SH1106/SSD1306 framebuffer (page-based, column-major).
Each byte covers 8 vertical pixels; bit 0 = top pixel of the byte.
"""
image = Image.new("1", (width, height), 0)
pixels = image.load()
bytes_per_page = width
for page in range(0, height, 8):
page_start = (page // 8) * bytes_per_page
for col in range(width):
@@ -183,22 +188,61 @@ def buffer_to_image(buffer, width, height, scale=1):
byte_val = buffer[byte_idx]
for bit in range(8):
if page + bit < height:
pixel_value = 1 if (byte_val & (1 << bit)) else 0
pixels[col, page + bit] = pixel_value
pixels[col, page + bit] = 1 if (byte_val & (1 << bit)) else 0
return image.convert("RGB")
# Convert to RGB: white text on black background (no inversion)
image_rgb = image.convert("RGB")
# Add 3-pixel black frame around the image
def eink_buffer_to_image(buffer, log_width, log_height):
"""Decode GxEPD2 framebuffer for GxEPD2_213_B74 with DISPLAY_ROTATION=1 (landscape).
Physical panel: PHYS_WIDTH=128, HEIGHT=250.
Buffer layout: row-major, stride=PHYS_WIDTH/8=16 bytes, MSB-first.
byte index = phys_y * 16 + phys_x // 8
bit = 7 - phys_x % 8
value 1 = white (paper), 0 = black (ink)
With setRotation(1), GxEPD2 maps logical (lx, ly) to physical:
phys_x = PHYS_WIDTH - 1 - ly (= 127 - ly)
phys_y = lx
Visible logical height = EINK_VISIBLE_W = 122 (PHYS_WIDTH_VISIBLE).
We trim to visible_h rows so the 6 invisible physical columns don't appear.
"""
phys_stride = EINK_PHYS_WIDTH // 8 # 16 bytes per physical row
visible_h = min(log_height, EINK_VISIBLE_W) # trim to 122
image = Image.new("RGB", (log_width, visible_h), (255, 255, 255))
pixels = image.load()
for ly in range(visible_h):
phys_x = EINK_PHYS_WIDTH - 1 - ly # 127 - ly
for lx in range(log_width):
phys_y = lx
byte_idx = phys_y * phys_stride + phys_x // 8
bit = 7 - phys_x % 8
if byte_idx < len(buffer):
raw = (buffer[byte_idx] >> bit) & 1
# 1=white (paper), 0=black (ink)
color = (255, 255, 255) if raw else (0, 0, 0)
pixels[lx, ly] = color
return image
def buffer_to_image(buffer, width, height, display_type, scale=1):
"""Convert framebuffer to PIL Image with a 3-pixel black frame."""
if display_type == DISPLAY_TYPE_EINK:
image_rgb = eink_buffer_to_image(buffer, width, height)
else:
image_rgb = oled_buffer_to_image(buffer, width, height)
# Add 3-pixel black frame
FRAME_WIDTH = 3
new_width = width + FRAME_WIDTH * 2
new_height = height + FRAME_WIDTH * 2
final_image = Image.new("RGB", (new_width, new_height), (0, 0, 0))
# Paste the display content in the center
fw = image_rgb.width + FRAME_WIDTH * 2
fh = image_rgb.height + FRAME_WIDTH * 2
final_image = Image.new("RGB", (fw, fh), (0, 0, 0))
final_image.paste(image_rgb, (FRAME_WIDTH, FRAME_WIDTH))
# Upscale if requested
if scale > 1:
final_image = final_image.resize(
(final_image.width * scale, final_image.height * scale),
@@ -240,7 +284,7 @@ def main():
sys.exit(1)
try:
print("Screenshot Tool for Wio L1 Tracker Pro")
print("Screenshot Tool for Wio L1 Tracker Pro (OLED + e-ink)")
print("Press 'S' to capture screenshot, 'Q' to quit\n")
while True:
@@ -263,14 +307,15 @@ def main():
result = receive_screenshot(ser)
if result:
buffer_data, width, height = result
buffer_data, width, height, display_type = result
type_str = "e-ink" if display_type == DISPLAY_TYPE_EINK else "OLED"
print(
f"Received framebuffer: {width}x{height}, {len(buffer_data)} bytes"
f"Received framebuffer: {width}x{height} {type_str}, {len(buffer_data)} bytes"
)
try:
image = buffer_to_image(
buffer_data, width, height, scale=args.scale
buffer_data, width, height, display_type, scale=args.scale
)
filename = generate_filename()
image.save(filename)

8
variants/wio-tracker-l1-eink/platformio.ini
View File

@@ -9,6 +9,7 @@ build_flags = ${nrf52_base.build_flags}
-I lib/nrf52/s140_nrf52_7.3.0_API/include/nrf52
-I variants/wio-tracker-l1
-I examples/companion_radio/ui-new
-I lib/GxEPD2-patch/src
-D WIO_TRACKER_L1
-D WIO_TRACKER_L1_EINK
-D USE_SX1262
@@ -66,3 +67,10 @@ extends = WioTrackerL1Eink
build_flags = ${WioTrackerL1Eink.build_flags}
-D DUAL_SERIAL=1
extra_scripts = post:create-uf2.py
; Dual BLE+USB with screenshot support (development/debug)
[env:WioTrackerL1Eink_companion_dual_dev]
extends = WioTrackerL1Eink
build_flags = ${WioTrackerL1Eink.build_flags}
-D DUAL_SERIAL=1
-D ENABLE_SCREENSHOT

7
variants/wio-tracker-l1/platformio.ini
View File

@@ -152,3 +152,10 @@ extends = WioTrackerL1CompanionDual
build_flags = ${WioTrackerL1CompanionDual.build_flags}
-D UI_HAS_JOYSTICK_UPDOWN=1
extra_scripts = post:create-uf2.py
[env:WioTrackerL1_companion_dual_dev]
extends = WioTrackerL1CompanionDual
build_flags = ${WioTrackerL1CompanionDual.build_flags}
-D UI_HAS_JOYSTICK_UPDOWN=1
-D DUAL_SERIAL=1
-D ENABLE_SCREENSHOT