Hello everybody in the Cayenne Community,
I am currently using the TTGO T-Call ESP32 SIM800L device and it can’t seem to be connected to the Cayenne dashboard.
The coding, fortunately, can be uploaded into the device but the site is still waiting for the device to be connected.
I have used the Cayenne-MQTT-GSM library < Cayenne-MQTT-Arduino/GSM.ino at master · myDevicesIoT/Cayenne-MQTT-Arduino · GitHub >
This is my coding:
/*
This example shows how to connect to Cayenne using a GSM device and send/receive sample data.
The CayenneMQTT Library is required to run this sketch. If you have not already done so you can install it from the Arduino IDE Library Manager.
Steps:
1. Install the TinyGSM library (https://github.com/vshymanskyy/TinyGSM) from the Arduino Library Manager.
2. Set the Cayenne authentication info to match the authentication info from the Dashboard.
3. Uncomment the correct GSM modem type and set the GSM connection info, if needed.
4. Compile and upload the sketch.
5. A temporary widget will be automatically generated in the Cayenne Dashboard. To make the widget permanent click the plus sign on the widget.
*/
// #define CAYENNE_DEBUG // Uncomment to show debug messages
#define CAYENNE_PRINT Serial // Comment this out to disable prints and save space
// Uncomment your modem type:
#define TINY_GSM_MODEM_SIM800
#define SIM800L_IP5306_VERSION_20200811
#include <CayenneMQTTGSM.h>
#include "utilities.h"
// This sketch uses a software serial connection.
// #include <SoftwareSerial.h>
// SoftwareSerial gsmSerial(2, 3); // RX, TX
// If you are using a device that supports a hardware serial (Mega, Leonardo, etc.) and prefer to use
// that you can comment out the above lines and uncomment the one below.
#define gsmSerial Serial1
// GSM connection info.
char apn[] = "celcom.net.my"; // Access point name. Leave empty if it is not needed.
char gprsLogin[] = ""; // GPRS username. Leave empty if it is not needed.
char gprsPassword[] = ""; // GPRS password. Leave empty if it is not needed.
char pin[] = "1234"; // SIM pin number. Leave empty if it is not needed.
// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
char username[] = "-fc0a-11eb-be09-";
char password[] = "";
char clientID[] = "-fc0b-11eb-be09-";
void setup() {
Serial.begin(115200);
// Auto-detect the GSM serial baud rate. You can manually set it instead if you want to save a bit of space.
TinyGsmAutoBaud(gsmSerial);
Cayenne.begin(username, password, clientID, gsmSerial, apn, gprsLogin, gprsPassword, pin);
pinMode(18, OUTPUT);
pinMode(14, OUTPUT);
pinMode(15, OUTPUT);
pinMode(19, OUTPUT);
digitalWrite(18, HIGH);
digitalWrite(14, HIGH);
digitalWrite(15, HIGH);
digitalWrite(19, HIGH);
}
void loop()
{
Cayenne.loop();
}
CAYENNE_IN(V1)
{
digitalWrite(18, !getValue.asInt());
// process received value
}
CAYENNE_IN(V2)
{
digitalWrite(14, !getValue.asInt());
// process received value
}
CAYENNE_IN(V3)
{
digitalWrite(15, !getValue.asInt());
// process received value
}
CAYENNE_IN(V4)
{
digitalWrite(19, !getValue.asInt());
// process received value
}
CAYENNE_OUT_DEFAULT()
{
// Write data to Cayenne here. This example just sends the current uptime in milliseconds on virtual channel 0.
Cayenne.virtualWrite(0, millis());
}
// Default function for processing actuator commands from the Cayenne Dashboard.
// You can also use functions for specific channels, e.g CAYENNE_IN(1) for channel 1 commands.
CAYENNE_IN_DEFAULT()
{
CAYENNE_LOG("Channel %u, value %s", request.channel, getValue.asString());
//Process message here. If there is an error set an error message using getValue.setError(), e.g getValue.setError("Error message");
}
utilities.h coding:
#include <Wire.h>
#if defined(SIM800L_IP5306_VERSION_20190610)
#define MODEM_RST 5
#define MODEM_PWRKEY 4
#define MODEM_POWER_ON 23
#define MODEM_TX 27
#define MODEM_RX 26
#define I2C_SDA 21
#define I2C_SCL 22
#define LED_GPIO 13
#define LED_ON HIGH
#define LED_OFF LOW
#define IP5306_ADDR 0x75
#define IP5306_REG_SYS_CTL0 0x00
// setPowerBoostKeepOn
bool setupPMU()
{
bool en = true;
Wire.begin(I2C_SDA, I2C_SCL);
Wire.beginTransmission(IP5306_ADDR);
Wire.write(IP5306_REG_SYS_CTL0);
if (en) {
Wire.write(0x37); // Set bit1: 1 enable 0 disable boost keep on
} else {
Wire.write(0x35); // 0x37 is default reg value
}
return Wire.endTransmission() == 0;
}
#elif defined(SIM800L_AXP192_VERSION_20200327)
#define MODEM_RST 5
#define MODEM_PWRKEY 4
#define MODEM_POWER_ON 23
#define MODEM_TX 27
#define MODEM_RX 26
#define MODEM_DTR 32
#define MODEM_RI 33
#define I2C_SDA 21
#define I2C_SCL 22
#define LED_GPIO 13
#define LED_ON HIGH
#define LED_OFF LOW
#elif defined(SIM800C_AXP192_VERSION_20200609)
// pin definitions
#define MODEM_PWRKEY 4
#define MODEM_POWER_ON 25
#define MODEM_TX 27
#define MODEM_RX 26
#define MODEM_DTR 32
#define MODEM_RI 33
#define I2C_SDA 21
#define I2C_SCL 22
#define LED_GPIO 12
#define LED_ON LOW
#define LED_OFF HIGH
#elif defined(SIM800L_IP5306_VERSION_20200811)
#define MODEM_RST 5
#define MODEM_PWRKEY 4
#define MODEM_POWER_ON 23
#define MODEM_TX 27
#define MODEM_RX 26
#define MODEM_DTR 32
#define MODEM_RI 33
#define I2C_SDA 21
#define I2C_SCL 22
#define LED_GPIO 13
#define LED_ON HIGH
#define LED_OFF LOW
#define IP5306_ADDR 0x75
#define IP5306_REG_SYS_CTL0 0x00
// setPowerBoostKeepOn
bool setupPMU()
{
bool en = true;
Wire.begin(I2C_SDA, I2C_SCL);
Wire.beginTransmission(IP5306_ADDR);
Wire.write(IP5306_REG_SYS_CTL0);
if (en) {
Wire.write(0x37); // Set bit1: 1 enable 0 disable boost keep on
} else {
Wire.write(0x35); // 0x37 is default reg value
}
return Wire.endTransmission() == 0;
}
#else
#error "Please select the corresponding model"
#endif
#if defined(SIM800L_AXP192_VERSION_20200327) || defined(SIM800C_AXP192_VERSION_20200609)
#include <axp20x.h> //https://github.com/lewisxhe/AXP202X_Library
AXP20X_Class axp;
bool setupPMU()
{
// For more information about the use of AXP192, please refer to AXP202X_Library https://github.com/lewisxhe/AXP202X_Library
Wire.begin(I2C_SDA, I2C_SCL);
int ret = axp.begin(Wire, AXP192_SLAVE_ADDRESS);
if (ret == AXP_FAIL) {
Serial.println("AXP Power begin failed");
return false;
}
//! Turn off unused power
axp.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);
axp.setPowerOutPut(AXP192_LDO2, AXP202_OFF);
axp.setPowerOutPut(AXP192_LDO3, AXP202_OFF);
axp.setPowerOutPut(AXP192_DCDC2, AXP202_OFF);
axp.setPowerOutPut(AXP192_EXTEN, AXP202_OFF);
//! Do not turn off DC3, it is powered by esp32
// axp.setPowerOutPut(AXP192_DCDC3, AXP202_ON);
// Set the charging indicator to turn off
// Turn it off to save current consumption
// axp.setChgLEDMode(AXP20X_LED_OFF);
// Set the charging indicator to flash once per second
// axp.setChgLEDMode(AXP20X_LED_BLINK_1HZ);
//! Use axp192 adc get voltage info
axp.adc1Enable(AXP202_VBUS_VOL_ADC1 | AXP202_VBUS_CUR_ADC1 | AXP202_BATT_CUR_ADC1 | AXP202_BATT_VOL_ADC1, true);
float vbus_v = axp.getVbusVoltage();
float vbus_c = axp.getVbusCurrent();
float batt_v = axp.getBattVoltage();
// axp.getBattPercentage(); // axp192 is not support percentage
Serial.printf("VBUS:%.2f mV %.2f mA ,BATTERY: %.2f\n", vbus_v, vbus_c, batt_v);
return true;
}
#endif
void setupModem()
{
// Start power management
if (setupPMU() == false) {
Serial.println("Setting power error");
}
#ifdef MODEM_RST
// Keep reset high
pinMode(MODEM_RST, OUTPUT);
digitalWrite(MODEM_RST, HIGH);
#endif
pinMode(MODEM_PWRKEY, OUTPUT);
pinMode(MODEM_POWER_ON, OUTPUT);
// Turn on the Modem power first
digitalWrite(MODEM_POWER_ON, HIGH);
// Pull down PWRKEY for more than 1 second according to manual requirements
digitalWrite(MODEM_PWRKEY, HIGH);
delay(100);
digitalWrite(MODEM_PWRKEY, LOW);
delay(1000);
digitalWrite(MODEM_PWRKEY, HIGH);
// Initialize the indicator as an output
pinMode(LED_GPIO, OUTPUT);
digitalWrite(LED_GPIO, LED_OFF);
}
And this is what is being displayed in the serial monitor:
I would like to know what can I do to be able to connect this device with the Cayenne dashboard.
Thank you so much for your time and considerations.
