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Hibernate now enters true deep sleep on T-Deck Pro.

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UITask shutdown (already occurs/unchanged):
1. BLE disabled (_serial->disable()).
2. WiFi disconnected + WIFI_OFF.
3. 4G modem shutdown().
4. GPS power cut (PIN_GPS_EN LOW).
5. LoRa radio powerOff() (standby mode).
6. Display turnOff().

TDeckBoard::powerOff() (new):
7. btStop() -- BLE controller stop.
8. Peripheral power OFF (PIN_PERF_POWERON LOW) -- keyboard, BQ27220, sensors.
9. LoRa module power OFF (P_LORA_EN LOW) -- cuts power entirely.
10. Hold LoRa NSS high (prevents SX1262 drawing current from floating CS).
11. esp_deep_sleep_start() -- CPU halts, ~10-40uA.

Wake (reset button or USB power-on):
12. ESP32-S3 cold boots.
13. TDeckBoard::begin() runs: peripheral power ON, I2C init, LoRa power ON, NSS hold released.
14. App starts fresh -- prefs/contacts/messages load from flash.

No LoRa wake during hibernate -- the device is truly off. Only a hardware
reset (reset button) or USB power-on wakes the device.
This commit is contained in:
pelgraine
2026-05-02 10:19:37 +10:00
parent 9c4c374db8
commit 95c992d966
1 changed files with 22 additions and 4 deletions
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variants/lilygo_tdeck_pro/TDeckBoard.h
+22 -4
View File
@@ -30,10 +30,28 @@ public:
void begin();
void powerOff() override {
// Stop Bluetooth before power off
btStop();
// Don't call parent or enterDeepSleep - let normal shutdown continue
// Display will show "hibernating..." text
// True hibernate: deep sleep with no software wake sources.
// Only a hardware reset (reset button) or USB power-on wakes the device.
// BLE, WiFi, 4G, GPS, and LoRa are already shut down by UITask
// before this method is called.
btStop(); // Belt and suspenders -- BLE controller stop
// Cut power to peripherals (keyboard, BQ27220, sensors)
pinMode(PIN_PERF_POWERON, OUTPUT);
digitalWrite(PIN_PERF_POWERON, LOW);
// Cut power to LoRa module (radio already in standby from radio_driver.powerOff)
#ifdef P_LORA_EN
digitalWrite(P_LORA_EN, LOW);
#endif
// Hold LoRa NSS high to prevent SX1262 drawing current from floating CS
rtc_gpio_hold_en((gpio_num_t)P_LORA_NSS);
// Enter deep sleep with no wake sources -- only hardware reset wakes
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);
esp_deep_sleep_start();
}
void enterDeepSleep(uint32_t secs, int pin_wake_btn) {