How to config Telemetry on IGate Digi Tracker

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Parent Category: WIKI
Category: ESP32APRS_LoRa
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According to the standard Telemetry data can be sent along with the location package at one time,Resulting in saving time and the number of packages used for export. Telemetry data is compressed to a small size. This results in a shorter time for data transmission. Compressed telemetry data is Can send up to 8280 values per channel.

Hardware example from LILYGO T-BEAM SUPREME

  • Built in BME280 for Temperature, Humidity, Pressure
  • BME280 I2C Bus pinout SDA->GPIO17 SCK->GPIO18

Step 1: Config GPIO

  • Web service to MOD tab, Config I2C_0 SDA GPIO:17 SCK GPIO:18
  • Click Apply and go to System tab click [REBOOT] button. I2C0_GPIO

Step 2: Configure the sensors you want to use.

  • You can use up to 10 sensors, Use SENSOR#_ Channel 1-10 (This example use SENSOR#1-SENSOR#3)

  • SENSOR#1 Type: TEMPERATURE, Name: Temperature, Unit: °C, PORT: BME280_I2C0, Address: 119, Sample: 10Sec, Average: 60Sec,EQNS: a=0,b=1,c=0

  • SENSOR#2 Type: HUMIDITY, Name: Humidity, Unit: %RH, PORT: BME280_I2C0, Address: 119, Sample: 10Sec, Average: 60Sec,EQNS: a=0,b=1,c=0

  • SENSOR#3 Type: PRESSURE, Name: Pressure, Unit: hPa, PORT: BME280_I2C0, Address: 119, Sample: 10Sec, Average: 60Sec,EQNS: a=0,b=1,c=0

  • SENSOR#4 Type: BATTERY, Name: Battery, Unit: V, PORT: BME280_I2C0, Address: 119, Sample: 10Sec, Average: 60Sec,EQNS: a=0,b=1,c=0

  • SENSOR#5 Type: SAT_NUM, Name: Satellite, Unit: , PORT: GNSS_NUM, Address: 119, Sample: 10Sec, Average: 60Sec,EQNS: a=0,b=1,c=0 Sensor_Config

  • Click [Apply Change] and reflash by click tab [SENSOR] again. after 10sec should display value in group [Sensor Monitor]

Step 3: Configure the telemetry on IGate/Digi/Tracker mode. (Example: Tracker mode)

  • You can use send telemetry up to 5 channel (A1-A5) by each signal channel Choose to use the sensor channel that has already been set.
  • The telemetry parameter(PARM) is the Name: and UNIT is the Unit:
  • Setting the decimal point It is multiplied by the value of Precision: and sent. The resulting value should not exceed 8280. In the EQNS equation, the b factor must be adjusted by 1/(10^Precision). Offset for calibration or reduce value not exceed 8280.
  • An example setting is as follows.

CH A1: Sensor:SENSOR#1 Name:TEMP Unit:C Precision:2 Offset:0 EQNS: a=0,b=0.01,c=0

CH A2: Sensor:SENSOR#2 Name:HUM Unit:% Precision:2 Offset:0 EQNS: a=0,b=0.01,c=0

CH A3: Sensor:SENSOR#3 Name:BARO Unit:hPa Precision:1 Offset:-800 EQNS: a=0,b=0.1,c=800

CH A4: Sensor:SENSOR#4 Name:BAT Unit:V Precision:2 Offset:0 EQNS: a=0,b=0.01,c=0

CH A5: Sensor:SENSOR#5 Name:SAT Unit:  Precision:0 Offset:0 EQNS: a=0,b=1,c=0

telemetry_config

  • Click Apply and go to System tab click [REBOOT] button.

  • After reboot system telemetry sequence equal to 0 ,It will sent telemetry header(PARM,UNIT,EQNS) update. telemetry_header

  • Telemetry data Will be compressed into a small size and sent along with the position packet. telemetry_data

  • Recheck data from map webservice, Show name value and unit

telemery_show

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