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enter deep sleep as soon as we send one packet

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This commit is contained in:
geeksville 2020-01-19 10:59:30 -08:00
parent a35c6dcbe9
commit 8863cb7d5c
1 changed files with 129 additions and 57 deletions
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164
main/main.ino
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@ -36,6 +36,8 @@ String baChStatus = "No charging";
bool ssd1306_found = false;
bool axp192_found = false;
bool packetSent, packetQueued;
#if defined(PAYLOAD_USE_FULL)
// includes number of satellites and accuracy
static uint8_t txBuffer[10];
@ -54,7 +56,14 @@ esp_sleep_source_t wakeCause; // the reason we booted this time
void buildPacket(uint8_t txBuffer[]); // needed for platformio
void send() {
/**
* If we have a valid position send it to the server.
* @return true if we decided to send.
*/
bool trySend() {
packetSent = false;
if (0 < gps_hdop() && gps_hdop() < 50 && gps_latitude() != 0 && gps_longitude() != 0)
{
char buffer[40];
snprintf(buffer, sizeof(buffer), "Latitude: %10.6f\n", gps_latitude());
screen_print(buffer);
@ -71,7 +80,13 @@ void send() {
bool confirmed = false;
#endif
packetQueued = true;
ttn_send(txBuffer, sizeof(txBuffer), LORAWAN_PORT, confirmed);
return true;
}
else {
return false;
}
}
void sleep() {
@ -115,9 +130,11 @@ void callback(uint8_t message) {
if (EV_PENDING == message) screen_print("Message discarded\n");
if (EV_QUEUED == message) screen_print("Message queued\n");
if (EV_TXCOMPLETE == message) {
// We only want to say 'packetSent' for our packets (not packets needed for joining)
if (EV_TXCOMPLETE == message && packetQueued) {
screen_print("Message sent\n");
sleep();
packetQueued = false;
packetSent = true;
}
if (EV_RESPONSE == message) {
@ -234,41 +251,6 @@ 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
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)
#endif
}
// Perform power on init that we do on each wake from deep sleep
void initDeepSleep() {
bootCount++;
@ -313,7 +295,10 @@ void setup() {
DEBUG_MSG(APP_NAME " " APP_VERSION "\n");
// Don't init display if we don't have one or we are waking headless due to a timer event
if(ssd1306_found && wakeCause != ESP_SLEEP_WAKEUP_TIMER)
if(wakeCause == ESP_SLEEP_WAKEUP_TIMER)
ssd1306_found = false; // forget we even have the hardware
if(ssd1306_found)
screen_setup();
// Init GPS
@ -340,20 +325,92 @@ void setup() {
ttn_adr(LORAWAN_ADR);
}
void loop() {
gps_loop();
ttn_loop();
screen_loop();
#ifdef DEEPSLEEP_INTERVAL
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;
}
if (millis() > GPS_WAIT_FOR_LOCK) { // we never found a GPS lock, just go back to sleep
doDeepSleep();
}
}
}
}
#else
/// loop endlessly, sending a packet every SEND_INTERVAL
void nonDeepSleepLoop() {
if(packetSent) {
packetSent = false;
sleep();
}
// Send every SEND_INTERVAL millis
static uint32_t last = 0;
static bool first = true;
if (0 == last || millis() - last > SEND_INTERVAL) {
if (0 < gps_hdop() && gps_hdop() < 50 && gps_latitude() != 0 && gps_longitude() != 0) {
if (trySend()) {
last = millis();
first = false;
Serial.println("TRANSMITTING");
send();
Serial.println("TRANSMITTED");
} else {
if (first) {
screen_print("Waiting GPS lock\n");
@ -365,3 +422,18 @@ void loop() {
}
}
}
#endif
void loop() {
gps_loop();
ttn_loop();
screen_loop();
#ifdef DEEPSLEEP_INTERVAL
deepSleepLoop();
#else
nonDeepSleepLoop();
#endif
}