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LilyGO TTGO T-Higrow ESP32 - BME280 Sensor

LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
LilyGO TTGO T-Higrow ESP32 - BME280 Sensor
  • Availabilty: Directly available from warehouse in Eindhoven
  • Model: LILYGO-G713
  • SKU: 003146
€19.00
Ex Tax: €15.70

The TTGO T-Higrow from LilyGO is a microcontroller based on an ESP32 with several sensors. The USB to serial converter makes it easy to program, even as an Arduino. The board has a USB-C connection with which it can be programmed and/or powered (USB-C cable not included).

Specifications:

  • Supply voltage: 3.3V DC or 5V DC
  • GPIO voltage: 3.3V*
  • ESP32 chip (240Mhz dual core processor)
    • Flash memory: 4MB
    • SRAM: 520KB
    • Built-in Wi-Fi
    • Built-in Bluetooth
  • USB to serial converter: CP2104 or CH9102
  • Built-in Li-ion/Li-Po battery charging circuit: TP4054 chip can charge up to 500mA
  • Built-in capacitive soil moisture sensor
  • Built-in resistive soil moisture sensor
  • Built-in ambient light sensor: BH1750
  • Built-in digital barometer pressure and humidity sensor: BME280
  • PCB dimensions: See images

Package contents:

  • 1x TTGO T-Higrow
  • 1x Male header set
  • 1x Battery cable

See the following page for more information and to get started with the board: TTGO-T-Higrow

To program the board with the Arduino IDE select the 'ESP32 Dev Module' in the board manager.

To get the BME280 sensor to work, the following library can be installed (also possible via the library manager in the Arduino IDE): Adafruit BME280 Library

Open the example code named "bme280test.ino" and change the following lines (around 42-45) of code: 

unsigned status;
    
// default settings
status = bme.begin();

To:

pinMode(4, OUTPUT);
digitalWrite(4, HIGH);
delay(200);

Wire.begin (25, 26);

unsigned status;

status = bme.begin(0x77, &Wire);

The code can now be uploaded.

*Note: The pins on the board are directly connected to the ESP32 chip and are therefore only suitable for 3.3V signals.

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