4a8dcb4906
Add the necessary code to properly power-off the Xiao + Wio companions. This way we can achieve around 15 microamps of power consumption in the off state. Signed-off-by: Frieder Schrempf <frieder@fris.de>
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
#pragma once
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#include <MeshCore.h>
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#include <Arduino.h>
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#ifdef XIAO_NRF52
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class XiaoNrf52Board : public mesh::MainBoard {
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protected:
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uint8_t startup_reason;
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public:
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void begin();
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uint8_t getStartupReason() const override { return startup_reason; }
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#if defined(P_LORA_TX_LED)
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void onBeforeTransmit() override {
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digitalWrite(P_LORA_TX_LED, LOW); // turn TX LED on
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}
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void onAfterTransmit() override {
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digitalWrite(P_LORA_TX_LED, HIGH); // turn TX LED off
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}
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#endif
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uint16_t getBattMilliVolts() override {
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// Please read befor going further ;)
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// https://wiki.seeedstudio.com/XIAO_BLE#q3-what-are-the-considerations-when-using-xiao-nrf52840-sense-for-battery-charging
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// We can't drive VBAT_ENABLE to HIGH as long
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// as we don't know wether we are charging or not ...
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// this is a 3mA loss (4/1500)
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digitalWrite(VBAT_ENABLE, LOW);
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int adcvalue = 0;
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analogReadResolution(12);
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analogReference(AR_INTERNAL_3_0);
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delay(10);
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adcvalue = analogRead(PIN_VBAT);
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return (adcvalue * ADC_MULTIPLIER * AREF_VOLTAGE) / 4.096;
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}
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const char* getManufacturerName() const override {
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return "Seeed Xiao-nrf52";
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}
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void reboot() override {
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NVIC_SystemReset();
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}
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void powerOff() override {
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// set led on and wait for button release before poweroff
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digitalWrite(PIN_LED, LOW);
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#ifdef PIN_USER_BTN
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while(digitalRead(PIN_USER_BTN) == LOW);
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#endif
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digitalWrite(LED_GREEN, HIGH);
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digitalWrite(LED_BLUE, HIGH);
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digitalWrite(PIN_LED, HIGH);
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#ifdef PIN_USER_BTN
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// configure button press to wake up when in powered off state
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nrf_gpio_cfg_sense_input(digitalPinToInterrupt(g_ADigitalPinMap[PIN_USER_BTN]), NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_SENSE_LOW);
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#endif
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sd_power_system_off();
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}
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bool startOTAUpdate(const char* id, char reply[]) override;
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};
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#endif |