OLED and button support, some refactoring.

platformio.ini

@@ -971,6 +971,10 @@ build_flags = ${nrf52840_base.build_flags}
   -D LORA_TX_POWER=22
   -D SX126X_CURRENT_LIMIT=130
   -D SX126X_RX_BOOSTED_GAIN=1
+  -D PIN_USER_BTN=6
+lib_deps=
+  ${nrf52840_base.lib_deps}
+	adafruit/Adafruit SSD1306 @ ^2.5.13
 
 [env:Faketec_Repeater]
 extends = faketec
@@ -1035,6 +1039,7 @@ lib_deps =
 extends = faketec
 build_flags =
   ${faketec.build_flags} 
+  -D DISPLAY_CLASS=SSD1306Display
   -D MAX_CONTACTS=100
   -D MAX_GROUP_CHANNELS=8
   -D BLE_PIN_CODE=123456
@@ -1043,7 +1048,7 @@ build_flags =
   -D ENABLE_PRIVATE_KEY_IMPORT=1
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
-build_src_filter = ${faketec.build_src_filter} +<helpers/nrf52/SerialBLEInterface.cpp> +<../examples/companion_radio/main.cpp>
+build_src_filter = ${faketec.build_src_filter} +<helpers/nrf52/SerialBLEInterface.cpp> +<../examples/companion_radio> +<helpers/ui/*.cpp>
 lib_deps =
   ${faketec.lib_deps}
   adafruit/RTClib @ ^2.1.3

src/helpers/nrf52/faketecBoard.cpp

@@ -6,6 +6,32 @@
 
 static BLEDfu bledfu;
 
+void faketecBoard::begin() {    
+    // for future use, sub-classes SHOULD call this from their begin()
+    startup_reason = BD_STARTUP_NORMAL;
+    btn_prev_state = HIGH;
+  
+
+    pinMode(PIN_VBAT_READ, INPUT);
+
+    #ifdef BUTTON_PIN
+      pinMode(BATTERY_PIN, INPUT);
+      pinMode(BUTTON_PIN, INPUT);
+      pinMode(LED_PIN, OUTPUT);
+    #endif
+
+    #if defined(PIN_BOARD_SDA) && defined(PIN_BOARD_SCL)
+      Wire.begin(PIN_BOARD_SDA, PIN_BOARD_SCL);
+    #else
+      Wire.begin();
+    #endif
+
+    pinMode(SX126X_POWER_EN, OUTPUT);
+    digitalWrite(SX126X_POWER_EN, HIGH);
+    delay(10);   // give sx1262 some time to power up
+}
+
+
 static void connect_callback(uint16_t conn_handle)
 {
     (void)conn_handle;

src/helpers/nrf52/faketecBoard.h

@@ -23,24 +23,10 @@
 class faketecBoard : public mesh::MainBoard {
 protected:
   uint8_t startup_reason;
+  uint8_t btn_prev_state;
 
 public:
-  void begin() {
+  void begin();
-    // for future use, sub-classes SHOULD call this from their begin()
-    startup_reason = BD_STARTUP_NORMAL;
-
-    pinMode(PIN_VBAT_READ, INPUT);
-
-    #if defined(PIN_BOARD_SDA) && defined(PIN_BOARD_SCL)
-      Wire.begin(PIN_BOARD_SDA, PIN_BOARD_SCL);
-    #else
-      Wire.begin();
-    #endif
-
-    pinMode(SX126X_POWER_EN, OUTPUT);
-    digitalWrite(SX126X_POWER_EN, HIGH);
-    delay(10);   // give sx1262 some time to power up
-  }
 
   uint8_t getStartupReason() const override { return startup_reason; }
 
@@ -61,6 +47,17 @@ public:
     return "Faketec DIY";
   }
 
+  int buttonStateChanged() {
+    #ifdef BUTTON_PIN
+      uint8_t v = digitalRead(BUTTON_PIN);
+      if (v != btn_prev_state) {
+        btn_prev_state = v;
+        return (v == LOW) ? 1 : -1;
+      }
+    #endif
+      return 0;
+  }
+
   void reboot() override {
     NVIC_SystemReset();
   }

variants/promicro_nrf52840/variant.h

@@ -44,7 +44,7 @@
 
 #define WIRE_INTERFACES_COUNT 2
 
-#define PIN_WIRE_SDA         (6)
+#define PIN_WIRE_SDA         (8)
 #define PIN_WIRE_SCL         (7)
 #define PIN_WIRE1_SDA        (13)
 #define PIN_WIRE1_SCL        (14)