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deep sleep now powers down GPS and lora radio

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This commit is contained in:
geeksville 2020-02-01 05:30:08 -08:00
parent 2a2e8172e3
commit e890e7a80a
2 changed files with 42 additions and 96 deletions
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9
main/configuration.h
View File

@ -56,8 +56,8 @@ void ttn_register(void (*callback)(uint8_t message));
#define DEBUG_PORT Serial // Serial debug port
#define SERIAL_BAUD 115200 // Serial debug baud rate
#define SLEEP_BETWEEN_MESSAGES 0 // Do sleep between messages
#define SEND_INTERVAL 60000 // Sleep for these many millis
#define SLEEP_BETWEEN_MESSAGES true // Do sleep between messages
#define SEND_INTERVAL (5 * 60 * 1000) // Sleep for these many millis
#define MESSAGE_TO_SLEEP_DELAY 5000 // Time after message before going to sleep
#define LOGO_DELAY 5000 // Time to show logo on first boot
#define LORAWAN_PORT 10 // Port the messages will be sent to
@ -67,10 +67,7 @@ void ttn_register(void (*callback)(uint8_t message));
#define REQUIRE_RADIO true // If true, we will fail to start if the radio is not found
// If not defined, we will wait for lock forever
// #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
#define GPS_WAIT_FOR_LOCK (30 * 1000) // Wait 30s after every boot for GPS lock (may need longer than 5s because we turned the gps off during deep sleep)
// -----------------------------------------------------------------------------
// DEBUG

129
main/main.ino
View File

@ -90,6 +90,40 @@ bool trySend() {
}
}
void doDeepSleep(uint64_t msecToWake)
{
Serial.printf("Entering deep sleep for %llu seconds\n", msecToWake / 1000);
// 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
LMIC_shutdown(); // cleanly shutdown the radio
if(axp192_found) {
// turn on after initial testing with real hardware
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(); // TBD mA sleep current (battery)
}
void sleep() {
#if SLEEP_BETWEEN_MESSAGES
@ -110,7 +144,7 @@ void sleep() {
// We sleep for the interval between messages minus the current millis
// this way we distribute the messages evenly every SEND_INTERVAL millis
uint32_t sleep_for = (millis() < SEND_INTERVAL) ? SEND_INTERVAL - millis() : SEND_INTERVAL;
sleep_millis(sleep_for);
doDeepSleep(sleep_for);
#endif
}
@ -330,81 +364,11 @@ void setup() {
}
}
#ifdef DEEPSLEEP_INTERVAL
void loop() {
gps_loop();
ttn_loop();
screen_loop();
void doDeepSleep()
{
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
LMIC_shutdown(); // cleanly shutdown the radio
if(axp192_found) {
// turn on after initial testing with real hardware
// 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(); // TBD mA sleep current (battery)
}
/// send ONE packet (or timeout waiting for GPS/LORA) and then enter deep sleep. If screen is on let the user have a few seconds to
/// see the results
void deepSleepLoop() {
// Send every SEND_INTERVAL millis
static uint32_t last = 0, timeToSleep = 0;
static bool first = true;
uint32_t now = millis();
if(packetSent) { // we've sent at least one packet to the server
timeToSleep = ssd1306_found ? now + 5000 : now; // If the display is on allow the user a few seconds to see it, otherwise go to sleep ASAP
}
if(timeToSleep && now >= timeToSleep) // if a sleep was queued, possibly do it
doDeepSleep();
if (0 == last || now - last > SEND_INTERVAL) {
if (trySend()) {
last = millis();
first = false;
Serial.println("TRANSMITTED");
} else {
if (first) {
screen_print("Waiting GPS lock\n");
first = false;
}
#ifdef GPS_WAIT_FOR_LOCK
if (millis() > GPS_WAIT_FOR_LOCK) { // we never found a GPS lock, just go back to sleep
doDeepSleep();
}
#endif
}
}
}
#else
/// loop endlessly, sending a packet every SEND_INTERVAL
void nonDeepSleepLoop() {
if(packetSent) {
packetSent = false;
sleep();
@ -431,18 +395,3 @@ void nonDeepSleepLoop() {
}
}
}
#endif
void loop() {
gps_loop();
ttn_loop();
screen_loop();
#ifdef DEEPSLEEP_INTERVAL
deepSleepLoop();
#else
nonDeepSleepLoop();
#endif
}