From a037351f217e234c6d3aea7a888f81538cb107c5 Mon Sep 17 00:00:00 2001
From: Jan Grewe <jan@faked.org>
Date: Fri, 31 Jul 2020 01:52:28 +0200
Subject: [PATCH] first working version with deepsleep
---
platformio.ini | 2 -
src/config.h.sample | 13 +--
src/main.cpp | 236 ++++++++++++++++++++++++++++++--------------
3 files changed, 164 insertions(+), 87 deletions(-)
diff --git a/platformio.ini b/platformio.ini
index 925298c..a75b147 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -25,6 +25,4 @@ lib_deps =
AXP202X_Library@1.1.2
TinyGPSPlus@1.0.2
MCCI Arduino LoRaWAN Library@0.8.0
- OneButton@0.0.0-alpha+sha.eb583d713a
CayenneLPP@1.1.0
-
diff --git a/src/config.h.sample b/src/config.h.sample
index a260387..a457d04 100644
--- a/src/config.h.sample
+++ b/src/config.h.sample
@@ -1,10 +1,5 @@
+#define TIME_TO_SLEEP 900 // 15 minutes
-//char DevEUIString[] = "0102030405060708";
-//char AppEUIString[] = "70B3D50A0B0C0D0E";
-//char AppKeyString[] = "00112233445566778899AABBCCDDEEFF";
-
-#define TTN_DEVEUI { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 }; // LSB / little-endian / "byte order reversed"
-#define TTN_APPEUI { 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0xD5, 0xB3, 0x70 }; // LSB / little-endian / "byte order reversed"
-#define TTN_APPKEY { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF }; // MSB / big-endian / "byte order same as string"
-
-#define BUTTON_PIN 38
+#define TTN_DEVEUI { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 }; // LSB
+#define TTN_APPEUI { 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0xD5, 0xB3, 0x70 }; // LSB
+#define TTN_APPKEY { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF }; // MSB
diff --git a/src/main.cpp b/src/main.cpp
index e9ffc7d..b7e847c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -55,7 +55,7 @@ const cLoRaWAN::lmic_pinmap pinMap = {
.nss = 18,
.rxtx = cLoRaWAN::lmic_pinmap::LMIC_UNUSED_PIN,
.rst = 23,
- .dio = {26, 33, cLoRaWAN::lmic_pinmap::LMIC_UNUSED_PIN},
+ .dio = {26, 33, 32},
};
AXP20X_Class axp;
@@ -64,8 +64,11 @@ TinyGPSPlus gps;
cLoRaWAN LoRaWAN{};
CayenneLPP lpp(55);
DynamicJsonDocument jsonBuffer(1024);
-OneButton btn = OneButton(BUTTON_PIN, true, true);
-unsigned long statusTimer;
+bool gpsFix = false;
+bool statusSending = false;
+bool statusSent = false;
+unsigned long timerGpsFix;
+RTC_DATA_ATTR int bootCount = 0;
void onEvent(ev_t ev)
{
@@ -90,6 +93,7 @@ void onEvent(ev_t ev)
break;
case EV_JOINED:
Serial.println(F("EV_JOINED"));
+ axp.setChgLEDMode(AXP20X_LED_LOW_LEVEL);
break;
case EV_RFU1:
Serial.println(F("EV_RFU1"));
@@ -111,6 +115,9 @@ void onEvent(ev_t ev)
Serial.println(LMIC.dataLen);
Serial.println(F(" bytes of payload"));
}
+ // this allows going to deep sleep
+ statusSending = false;
+ statusSent = true;
break;
case EV_LOST_TSYNC:
Serial.println(F("EV_LOST_TSYNC"));
@@ -138,6 +145,9 @@ void onEvent(ev_t ev)
break;
case EV_JOIN_TXCOMPLETE:
Serial.println(F("EV_JOIN_TXCOMPLETE: no JoinAccept"));
+ // this allows restarting
+ statusSending = false;
+ statusSent = false;
break;
default:
Serial.println(F("Unknown event " + (unsigned)ev));
@@ -145,39 +155,8 @@ void onEvent(ev_t ev)
}
}
-void setupPower()
-{
- if (!axp.begin(Wire, AXP192_SLAVE_ADDRESS))
- {
- Serial.println("AXP192 Begin PASS");
- }
- else
- {
- Serial.println("AXP192 Begin FAIL");
- }
- axp.setPowerOutPut(AXP192_DCDC1, AXP202_OFF); // OLED : off
- axp.setPowerOutPut(AXP192_DCDC2, AXP202_OFF); // N/C : off
- axp.setPowerOutPut(AXP192_DCDC3, AXP202_ON); // ESP32 : on
- axp.setPowerOutPut(AXP192_LDO2, AXP202_ON); // LORA : on
- axp.setPowerOutPut(AXP192_LDO3, AXP202_ON); // GPS : on
- axp.setDCDC3Voltage(3300); // ESP32 : 3.3V
- axp.setLDO2Voltage(3300); // LORA : 3.3V
- axp.setLDO3Voltage(3300); // GPS : 3.3V
- axp.setChgLEDMode(AXP20X_LED_OFF);
-}
-
-void setupGps()
+void printPowerStatus()
{
- GPS.begin(9600, SERIAL_8N1, 34, 12); // IO34: RX, IO12: TX
-}
-
-void printStatus()
-{
- axp.setChgLEDMode(AXP20X_LED_LOW_LEVEL);
- while (GPS.available())
- {
- gps.encode(GPS.read());
- }
Serial.println("##############################");
Serial.println("--- Power ---");
Serial.printf("DCDC1/OLED Status : %s\n", axp.isDCDC1Enable() ? "enabled" : "disabled");
@@ -204,79 +183,184 @@ void printStatus()
}
Serial.println("--- Chip ---");
Serial.printf("Chip Temp : %.1f C°\n", axp.getTemp() / 10);
+ Serial.println("##############################");
+}
+
+void printGpsStatus()
+{
+ while (GPS.available())
+ {
+ gps.encode(GPS.read());
+ }
+ Serial.println("##############################");
Serial.println("--- GPS ---");
- Serial.print("Latitude : ");
- Serial.println(gps.location.lat(), 5);
- Serial.print("Longitude : ");
- Serial.println(gps.location.lng(), 4);
- Serial.print("Satellites : ");
- Serial.println(gps.satellites.value());
- Serial.print("Altitude : ");
- Serial.print(gps.altitude.meters());
- Serial.println("M");
- Serial.print("Time : ");
- Serial.print(gps.time.hour());
- Serial.print(":");
- Serial.print(gps.time.minute());
- Serial.print(":");
- Serial.println(gps.time.second());
- Serial.print("Speed : ");
- Serial.println(gps.speed.kmph());
+ Serial.printf("Has Fix : %s\n", gps.satellites.isValid() ? "true" : "false");
+ Serial.printf("Latitude : %f\n", gps.location.lat());
+ Serial.printf("Longitude : %f\n", gps.location.lng());
+ Serial.printf("Satellites : %d\n", gps.satellites.value());
+ Serial.printf("Altitude : %g m\n", gps.altitude.meters());
+ Serial.printf("Time : %02d:%02d:%02d\n", gps.time.hour(), gps.time.minute(), gps.time.second());
+ Serial.printf("Speed : %g\n", gps.speed.kmph());
Serial.println("##############################");
- axp.setChgLEDMode(AXP20X_LED_OFF);
}
-void do_send()
+void setupPower()
{
- // Check if there is not a current TX/RX job running
- if (LMIC.opmode & OP_TXRXPEND)
+ if (!axp.begin(Wire, AXP192_SLAVE_ADDRESS))
{
- Serial.println(F("OP_TXRXPEND, not sending"));
+ Serial.println("AXP192 Begin PASS");
}
else
{
+ Serial.println("AXP192 Begin FAIL");
+ }
+ axp.setPowerOutPut(AXP192_DCDC1, AXP202_OFF); // OLED : off
+ axp.setPowerOutPut(AXP192_DCDC2, AXP202_OFF); // N/C : off
+ axp.setPowerOutPut(AXP192_DCDC3, AXP202_ON); // ESP32 : on
+ axp.setPowerOutPut(AXP192_LDO2, AXP202_ON); // LORA : on
+ axp.setPowerOutPut(AXP192_LDO3, AXP202_ON); // GPS : on
+ /*
+ axp.setDCDC3Voltage(3300); // ESP32 : 3.3V
+ axp.setLDO2Voltage(3300); // LORA : 3.3V
+ axp.setLDO3Voltage(3300); // GPS : 3.3V
+ */
+ axp.setChgLEDMode(AXP20X_LED_OFF);
+ printPowerStatus();
+}
+
+void setupGps()
+{
+ GPS.begin(9600, SERIAL_8N1, 34, 12); // IO34: RX, IO12: TX
+}
+
+bool checkGpsFix()
+{
+ if (millis() - timerGpsFix >= 1000 * 1) // 1 second
+ {
+ Serial.println("Waiting for GPS fix...");
while (GPS.available())
{
gps.encode(GPS.read());
}
- lpp.reset();
- lpp.addGPS(1, gps.location.lat(), gps.location.lng(), gps.altitude.meters());
- lpp.addAnalogInput(2, axp.getBattVoltage()/1000);
+ if (gps.satellites.value() >= 3 &&
+ gps.satellites.isValid() &&
+ gps.location.isValid())
+ {
+ printGpsStatus();
+ return true;
+ }
+ timerGpsFix = millis();
+ }
+ return false;
+}
+
+void createPayload()
+{
+ while (GPS.available())
+ {
+ gps.encode(GPS.read());
+ }
+ lpp.reset();
+ lpp.addGPS(1, gps.location.lat(), gps.location.lng(), gps.altitude.meters());
+ lpp.addAnalogInput(2, axp.getBattVoltage() / 1000);
+ // debug output
+ JsonObject json = jsonBuffer.to<JsonObject>();
+ lpp.decodeTTN(lpp.getBuffer(), lpp.getSize(), json);
+ serializeJsonPretty(json, Serial);
+ Serial.println();
+}
+
+void sendPayload()
+{
+ if (LMIC.opmode & OP_TXRXPEND)
+ {
+ Serial.println(F("OP_TXRXPEND, not sending"));
+ }
+ else
+ {
LMIC_setTxData2(1, lpp.getBuffer(), lpp.getSize(), 0);
Serial.println(F("Packet queued"));
Serial.println();
- JsonObject json = jsonBuffer.to<JsonObject>();
- lpp.decodeTTN(lpp.getBuffer(), lpp.getSize(), json);
- serializeJsonPretty(json, Serial);
- Serial.println();
}
}
-static void handleClick()
+void sendStatus()
{
- printStatus();
- do_send();
+ Serial.println("Sending status...");
+ axp.setChgLEDMode(AXP20X_LED_BLINK_4HZ);
+ createPayload();
+ sendPayload();
+ statusSending = true;
+}
+
+void doSleep()
+{
+ Serial.println("Going to sleep for " + String(TIME_SLEEP) + " seconds.");
+ axp.setPowerOutPut(AXP192_LDO2, AXP202_OFF); // LORA : off
+ axp.setPowerOutPut(AXP192_LDO3, AXP202_OFF); // GPS : off
+ axp.setChgLEDMode(AXP20X_LED_OFF);
+ esp_sleep_enable_ext0_wakeup(GPIO_NUM_38, LOW); // wake up with "user" button (middle)
+ esp_sleep_enable_timer_wakeup(1000000 * TIME_SLEEP);
+ esp_deep_sleep_start();
+}
+
+void print_wakeup_reason()
+{
+ esp_sleep_wakeup_cause_t wakeup_reason;
+
+ wakeup_reason = esp_sleep_get_wakeup_cause();
+
+ switch (wakeup_reason)
+ {
+ case ESP_SLEEP_WAKEUP_EXT0:
+ Serial.println("Wakeup caused by external signal using RTC_IO");
+ break;
+ case ESP_SLEEP_WAKEUP_EXT1:
+ Serial.println("Wakeup caused by external signal using RTC_CNTL");
+ break;
+ case ESP_SLEEP_WAKEUP_TIMER:
+ Serial.println("Wakeup caused by timer");
+ break;
+ case ESP_SLEEP_WAKEUP_TOUCHPAD:
+ Serial.println("Wakeup caused by touchpad");
+ break;
+ case ESP_SLEEP_WAKEUP_ULP:
+ Serial.println("Wakeup caused by ULP program");
+ break;
+ default:
+ Serial.printf("Wakeup was not caused by deep sleep: %d\n", wakeup_reason);
+ break;
+ }
}
void setup()
{
Serial.begin(115200);
Wire.begin(21, 22);
+ ++bootCount;
+ Serial.println("Boot number: " + String(bootCount));
+ print_wakeup_reason();
setupPower();
setupGps();
LoRaWAN.begin(pinMap);
- btn.attachClick(handleClick);
- printStatus();
- statusTimer = millis();
+ timerGpsFix = millis();
+ axp.setChgLEDMode(AXP20X_LED_BLINK_1HZ);
}
void loop()
{
LoRaWAN.loop();
- btn.tick();
- if (millis() - statusTimer >= 1000 * 30) {
- printStatus();
- do_send();
- statusTimer = millis();
- }
+
+ if (!gpsFix)
+ {
+ gpsFix = checkGpsFix();
+ }
+ else if (gpsFix && !statusSending && !statusSent)
+ {
+ sendStatus();
+ }
+ else if (statusSent)
+ {
+ doSleep();
+ }
}
--
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