ttgo-t-beam-gps-ttn-tracker/main/main.ino
Tim Kerby 4a1f360697 Bug fixes - frame counter, link checking and battery charge status
Fixed frame counter (was unsigned char, should have been uint_32) which caused TTN to ignore device after 255 frames and rollover when frame count checks enabled

Turned off link checking when ADR not in use as it was forcing confirmed links

Added display of battery charging status
2020-01-13 17:14:09 +00:00

296 lines
8.4 KiB
C++

/*
Main module
# Modified by Kyle T. Gabriel to fix issue with incorrect GPS data for TTNMapper
Copyright (C) 2018 by Xose Pérez <xose dot perez at gmail dot com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "configuration.h"
#include "rom/rtc.h"
#include <TinyGPS++.h>
#include <Wire.h>
#ifdef T_BEAM_V10
#include "axp20x.h"
AXP20X_Class axp;
bool pmu_irq = false;
String baChStatus = "No charging";
#endif
bool ssd1306_found = false;
bool axp192_found = false;
// Message counter, stored in RTC memory, survives deep sleep
RTC_DATA_ATTR uint32_t count = 0;
#if defined(PAYLOAD_USE_FULL)
// includes number of satellites and accuracy
uint8_t txBuffer[10];
#elif defined(PAYLOAD_USE_CAYENNE)
// CAYENNE DF
static uint8_t txBuffer[11] = {0x03, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
#endif
// -----------------------------------------------------------------------------
// Application
// -----------------------------------------------------------------------------
void send() {
char buffer[40];
snprintf(buffer, sizeof(buffer), "Latitude: %10.6f\n", gps_latitude());
screen_print(buffer);
snprintf(buffer, sizeof(buffer), "Longitude: %10.6f\n", gps_longitude());
screen_print(buffer);
snprintf(buffer, sizeof(buffer), "Error: %4.2fm\n", gps_hdop());
screen_print(buffer);
buildPacket(txBuffer);
#if LORAWAN_CONFIRMED_EVERY > 0
bool confirmed = (count % LORAWAN_CONFIRMED_EVERY == 0);
#else
bool confirmed = false;
#endif
ttn_cnt(count);
ttn_send(txBuffer, sizeof(txBuffer), LORAWAN_PORT, confirmed);
count++;
}
void sleep() {
#if SLEEP_BETWEEN_MESSAGES
// Show the going to sleep message on the screen
char buffer[20];
snprintf(buffer, sizeof(buffer), "Sleeping in %3.1fs\n", (MESSAGE_TO_SLEEP_DELAY / 1000.0));
screen_print(buffer);
// Wait for MESSAGE_TO_SLEEP_DELAY millis to sleep
delay(MESSAGE_TO_SLEEP_DELAY);
// Turn off screen
screen_off();
// Set the user button to wake the board
sleep_interrupt(BUTTON_PIN, LOW);
// 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);
#endif
}
void callback(uint8_t message) {
if (EV_JOINING == message) screen_print("Joining TTN...\n");
if (EV_JOINED == message) screen_print("TTN joined!\n");
if (EV_JOIN_FAILED == message) screen_print("TTN join failed\n");
if (EV_REJOIN_FAILED == message) screen_print("TTN rejoin failed\n");
if (EV_RESET == message) screen_print("Reset TTN connection\n");
if (EV_LINK_DEAD == message) screen_print("TTN link dead\n");
if (EV_ACK == message) screen_print("ACK received\n");
if (EV_PENDING == message) screen_print("Message discarded\n");
if (EV_QUEUED == message) screen_print("Message queued\n");
if (EV_TXCOMPLETE == message) {
screen_print("Message sent\n");
sleep();
}
if (EV_RESPONSE == message) {
screen_print("[TTN] Response: ");
size_t len = ttn_response_len();
uint8_t data[len];
ttn_response(data, len);
char buffer[6];
for (uint8_t i = 0; i < len; i++) {
snprintf(buffer, sizeof(buffer), "%02X", data[i]);
screen_print(buffer);
}
screen_print("\n");
}
}
uint32_t get_count() {
return count;
}
void scanI2Cdevice(void)
{
byte err, addr;
int nDevices = 0;
for (addr = 1; addr < 127; addr++) {
Wire.beginTransmission(addr);
err = Wire.endTransmission();
if (err == 0) {
Serial.print("I2C device found at address 0x");
if (addr < 16)
Serial.print("0");
Serial.print(addr, HEX);
Serial.println(" !");
nDevices++;
if (addr == SSD1306_ADDRESS) {
ssd1306_found = true;
Serial.println("ssd1306 display found");
}
if (addr == AXP192_SLAVE_ADDRESS) {
axp192_found = true;
Serial.println("axp192 PMU found");
}
} else if (err == 4) {
Serial.print("Unknow error at address 0x");
if (addr < 16)
Serial.print("0");
Serial.println(addr, HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
}
void setup() {
// Debug
#ifdef DEBUG_PORT
DEBUG_PORT.begin(SERIAL_BAUD);
#endif
delay(1000);
#ifdef T_BEAM_V10
Wire.begin(I2C_SDA, I2C_SCL);
scanI2Cdevice();
axp192_found = true;
if (axp192_found) {
if (!axp.begin(Wire, AXP192_SLAVE_ADDRESS)) {
Serial.println("AXP192 Begin PASS");
} else {
Serial.println("AXP192 Begin FAIL");
}
// axp.setChgLEDMode(LED_BLINK_4HZ);
Serial.printf("DCDC1: %s\n", axp.isDCDC1Enable() ? "ENABLE" : "DISABLE");
Serial.printf("DCDC2: %s\n", axp.isDCDC2Enable() ? "ENABLE" : "DISABLE");
Serial.printf("LDO2: %s\n", axp.isLDO2Enable() ? "ENABLE" : "DISABLE");
Serial.printf("LDO3: %s\n", axp.isLDO3Enable() ? "ENABLE" : "DISABLE");
Serial.printf("DCDC3: %s\n", axp.isDCDC3Enable() ? "ENABLE" : "DISABLE");
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_DCDC2, AXP202_ON);
axp.setPowerOutPut(AXP192_EXTEN, AXP202_ON);
axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
axp.setDCDC1Voltage(3300);
Serial.printf("DCDC1: %s\n", axp.isDCDC1Enable() ? "ENABLE" : "DISABLE");
Serial.printf("DCDC2: %s\n", axp.isDCDC2Enable() ? "ENABLE" : "DISABLE");
Serial.printf("LDO2: %s\n", axp.isLDO2Enable() ? "ENABLE" : "DISABLE");
Serial.printf("LDO3: %s\n", axp.isLDO3Enable() ? "ENABLE" : "DISABLE");
Serial.printf("DCDC3: %s\n", axp.isDCDC3Enable() ? "ENABLE" : "DISABLE");
Serial.printf("Exten: %s\n", axp.isExtenEnable() ? "ENABLE" : "DISABLE");
pinMode(PMU_IRQ, INPUT_PULLUP);
attachInterrupt(PMU_IRQ, [] {
pmu_irq = true;
}, FALLING);
axp.adc1Enable(AXP202_BATT_CUR_ADC1, 1);
axp.enableIRQ(AXP202_VBUS_REMOVED_IRQ | AXP202_VBUS_CONNECT_IRQ | AXP202_BATT_REMOVED_IRQ | AXP202_BATT_CONNECT_IRQ, 1);
axp.clearIRQ();
if (axp.isChargeing()) {
baChStatus = "Charging";
}
} else {
Serial.println("AXP192 not found");
}
#endif
// Buttons & LED
pinMode(BUTTON_PIN, INPUT_PULLUP);
pinMode(LED_PIN, OUTPUT);
// Hello
DEBUG_MSG(APP_NAME " " APP_VERSION "\n");
// Display
screen_setup();
// Init GPS
gps_setup();
// Show logo on first boot
if (0 == count) {
screen_print(APP_NAME " " APP_VERSION, 0, 0);
screen_show_logo();
screen_update();
delay(LOGO_DELAY);
}
// TTN setup
if (!ttn_setup()) {
screen_print("[ERR] Radio module not found!\n");
delay(MESSAGE_TO_SLEEP_DELAY);
screen_off();
sleep_forever();
}
ttn_register(callback);
ttn_join();
ttn_sf(LORAWAN_SF);
ttn_adr(LORAWAN_ADR);
if(!LORAWAN_ADR){
LMIC_setLinkCheckMode(0); // Link check problematic if not using ADR. Must be set after join
}
}
void loop() {
gps_loop();
ttn_loop();
screen_loop();
// 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) {
last = millis();
first = false;
Serial.println("TRANSMITTING");
send();
} else {
if (first) {
screen_print("Waiting GPS lock\n");
first = false;
}
if (millis() > GPS_WAIT_FOR_LOCK) {
sleep();
}
}
}
}