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Merge pull request #289 from adam2872/RAK4631-user-button

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Implement user button on RAK4631 using analogue pin 31 (same as MT)
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ripplebiz 2025-05-23 13:19:32 +10:00 • committed by GitHub
commit 22b80a9be7
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3 changed files with 43 additions and 29 deletions
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67
examples/companion_radio/UITask.cpp
View file

@ -232,40 +232,49 @@ void UITask::userLedHandler() {
}
void UITask::buttonHandler() {
#ifdef PIN_USER_BTN
static int prev_btn_state = !USER_BTN_PRESSED;
static unsigned long btn_state_change_time = 0;
static unsigned long next_read = 0;
int cur_time = millis();
if (cur_time >= next_read) {
int btn_state = digitalRead(PIN_USER_BTN);
if (btn_state != prev_btn_state) {
if (btn_state == USER_BTN_PRESSED) { // pressed?
if (_display != NULL) {
if (_display->isOn()) {
clearMsgPreview();
} else {
_display->turnOn();
_need_refresh = true;
#if defined(PIN_USER_BTN) || defined(PIN_USER_BTN_ANA)
static int prev_btn_state = !USER_BTN_PRESSED;
static int prev_btn_state_ana = !USER_BTN_PRESSED;
static unsigned long btn_state_change_time = 0;
static unsigned long next_read = 0;
int cur_time = millis();
if (cur_time >= next_read) {
int btn_state = 0;
int btn_state_ana = 0;
#ifdef PIN_USER_BTN
btn_state = digitalRead(PIN_USER_BTN);
#endif
#ifdef PIN_USER_BTN_ANA
btn_state_ana = (analogRead(PIN_USER_BTN_ANA) < 20); // analogRead returns a value hopefully below 20 when button is pressed.
#endif
if (btn_state != prev_btn_state || btn_state_ana != prev_btn_state_ana) { // check for either digital or analogue button change of state
if (btn_state == USER_BTN_PRESSED || btn_state_ana == USER_BTN_PRESSED) { // pressed?
if (_display != NULL) {
if (_display->isOn()) {
clearMsgPreview();
} else {
_display->turnOn();
_need_refresh = true;
}
_auto_off = cur_time + AUTO_OFF_MILLIS; // extend auto-off timer
}
} else { // unpressed ? check pressed time ...
if ((cur_time - btn_state_change_time) > 5000) {
#ifdef PIN_STATUS_LED
digitalWrite(PIN_STATUS_LED, LOW);
delay(10);
#endif
_board->powerOff();
}
_auto_off = cur_time + AUTO_OFF_MILLIS; // extend auto-off timer
}
} else { // unpressed ? check pressed time ...
if ((cur_time - btn_state_change_time) > 5000) {
#ifdef PIN_STATUS_LED
digitalWrite(PIN_STATUS_LED, LOW);
delay(10);
#endif
_board->powerOff();
}
btn_state_change_time = millis();
prev_btn_state = btn_state;
prev_btn_state_ana = btn_state_ana;
}
btn_state_change_time = millis();
prev_btn_state = btn_state;
next_read = millis() + 100; // 10 reads per second
}
next_read = millis() + 100; // 10 reads per second
#endif
}
#endif
}
void UITask::loop() {
buttonHandler();

4
src/helpers/nrf52/RAK4631Board.cpp
View file

@ -26,6 +26,10 @@ void RAK4631Board::begin() {
pinMode(PIN_USER_BTN, INPUT_PULLUP);
#endif
#ifdef PIN_USER_BTN_ANA
pinMode(PIN_USER_BTN_ANA, INPUT_PULLUP);
#endif
#if defined(PIN_BOARD_SDA) && defined(PIN_BOARD_SCL)
Wire.setPins(PIN_BOARD_SDA, PIN_BOARD_SCL);
#endif

1
variants/rak4631/platformio.ini
View file

@ -7,6 +7,7 @@ build_flags = ${nrf52840_base.build_flags}
-I variants/rak4631
-D RAK_4631
-D PIN_USER_BTN=9
-D PIN_USER_BTN_ANA=31
-D PIN_BOARD_SCL=14
-D PIN_BOARD_SDA=13
-D PIN_OLED_RESET=-1