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set GPIOs for sleep

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This commit is contained in:
Todd Herbert 2024-04-04 17:05:12 +13:00
parent eb0e705ba9
commit d1db51830b
1 changed files with 11 additions and 0 deletions
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11
src/sleep.cpp
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@ -277,6 +277,17 @@ void doDeepSleep(uint32_t msecToWake, bool skipPreflight = false)
if (shouldLoraWake(msecToWake)) { if (shouldLoraWake(msecToWake)) {
enableLoraInterrupt(); enableLoraInterrupt();
} }
#if defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_WIRELESS_PAPER_V1_0) // Applicable to most ESP32 boards?
// Avoid leakage through button pin
pinMode(0, INPUT);
rtc_gpio_hold_en((gpio_num_t)0);
// LoRa CS (RADIO_NSS) needs to stay HIGH, even during deep sleep
pinMode(LORA_CS, OUTPUT);
digitalWrite(LORA_CS, HIGH);
rtc_gpio_hold_en((gpio_num_t)LORA_CS);
#endif
#endif #endif
cpuDeepSleep(msecToWake); cpuDeepSleep(msecToWake);
} }