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begin implementing deep sleep (and powering down gps/lora/display)

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This commit is contained in:
geeksville 2020-01-18 18:00:00 -08:00
parent 716c355b21
commit ddf47aa134
2 changed files with 37 additions and 3 deletions
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3
main/configuration.h
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@ -66,6 +66,9 @@ void ttn_register(void (*callback)(uint8_t message));
#define LORAWAN_ADR 0 // Enable ADR
#define GPS_WAIT_FOR_LOCK 5000 // Wait 5s after every boot for GPS lock
// If defined, we will enter deep sleep after sending our packet. We will sleep until this interval expires or the user presses the button
#define DEEPSLEEP_INTERVAL (60 * 60 * 1000ULL) // sleep after we've received one message from the server (or we ran out of time), sleep for this many msecs
// -----------------------------------------------------------------------------
// DEBUG
// -----------------------------------------------------------------------------

37
main/main.ino
View File

@ -178,7 +178,7 @@ void scanI2Cdevice(void)
DCDC1 0.7-3.5V @ 1200mA max -> OLED // If you turn this off you'll lose comms to the axp192 because the OLED and the axp192 share the same i2c bus, instead use ssd1306 sleep mode
DCDC2 -> unused
DCDC3 0.7-3.5V @ 700mA max -> ESP32 (keep this on!)
LDO1 30mA -> charges GPS backup battery // turn this off during deep sleep to force the tiny J13 battery by the GPS to power the GPS ram (for a couple of days)
LDO1 30mA -> charges GPS backup battery // charges the tiny J13 battery by the GPS to power the GPS ram (for a couple of days), can not be turned off
LDO2 200mA -> LORA
LDO3 200mA -> GPS
*/
@ -198,8 +198,8 @@ void axp192Init() {
Serial.printf("Exten: %s\n", axp.isExtenEnable() ? "ENABLE" : "DISABLE");
Serial.println("----------------------------------------");
axp.setPowerOutPut(AXP192_LDO2, AXP202_ON);
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON);
axp.setPowerOutPut(AXP192_LDO2, AXP202_ON); // LORA radio
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON); // GPS main power
axp.setPowerOutPut(AXP192_DCDC2, AXP202_ON);
axp.setPowerOutPut(AXP192_EXTEN, AXP202_ON);
axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
@ -230,6 +230,37 @@ void axp192Init() {
}
void doDeepSleep()
{
#if DEEPSLEEP_INTERVAL
uint64_t msecToWake = DEEPSLEEP_INTERVAL;
Serial.printf("Entering deep sleep %llu\n", msecToWake);
// not using wifi yet, but once we are this is needed to shutoff the radio hw
// esp_wifi_stop();
screen_off(); // datasheet says this will draw only 10ua
if(axp192_found) {
axp.setPowerOutPut(AXP192_LDO2, AXP202_OFF); // LORA radio
axp.setPowerOutPut(AXP192_LDO3, AXP202_OFF); // GPS main power
}
// FIXME - use an external 10k pulldown so we can leave the RTC peripherals powered off
// until then we need the following lines
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
// Only GPIOs which are have RTC functionality can be used in this bit map: 0,2,4,12-15,25-27,32-39.
uint64_t gpioMask = (1ULL << BUTTON_PIN);
// FIXME change polarity so we can wake on ANY_HIGH instead - that would allow us to use all three buttons (instead of just the first)
gpio_pullup_en((gpio_num_t) BUTTON_PIN);
esp_sleep_enable_ext1_wakeup(gpioMask, ESP_EXT1_WAKEUP_ALL_LOW);
esp_sleep_enable_timer_wakeup(msecToWake * 1000ULL); // call expects usecs
esp_deep_sleep_start(); // 0.25 mA sleep current (battery)
#endif
}
void setup() {
// Debug