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Fix for display not coming on after poweron

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Tomas P 2025-11-07 09:50:21 +01:00 • committed by GitHub
parent 429f82106b
commit a0bf66f9d8
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1 changed files with 6 additions and 5 deletions
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11
variants/thinknode_m2/ThinknodeM2Board.cpp
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@ -3,12 +3,13 @@
void ThinknodeM2Board::begin() { void ThinknodeM2Board::begin() {
pinMode(PIN_VEXT_EN, OUTPUT);
digitalWrite(PIN_VEXT_EN, !PIN_VEXT_EN_ACTIVE); // force power cycle
delay(20); // allow power rail to discharge
digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE); // turn backlight back on
delay(120); // give display time to bias on cold boot
ESP32Board::begin(); ESP32Board::begin();
pinMode(PIN_VEXT_EN, OUTPUT); // init display pinMode(PIN_STATUS_LED, OUTPUT); // init power led
digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE); // pin needs to be high
delay(10);
digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE); // need to do this twice. do not know why..
pinMode(PIN_STATUS_LED, OUTPUT); // init power led
} }
void ThinknodeM2Board::enterDeepSleep(uint32_t secs, int pin_wake_btn) { void ThinknodeM2Board::enterDeepSleep(uint32_t secs, int pin_wake_btn) {