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An ESP32-C3 Development Board

by shedboy71

In this article we look at another board from Lilygo, this time its based on the ESP32-C and is called the T8-C3 ESP32-C3 Development Board.

Since this is mainly a development board for the ESP32-C3 we will look at that.

The specs of the ESP32-C3 microcontroller are as follows


Basic Parameter

  • Operating Voltage: 3.3V
  • Type-C Input Voltage: 5V DC
  • VIN Input Voltage: 5V DC
  • Operating Current: 25mA
  • Maximum Charging Current: 400mA
  • Operating Temperature: -40~105℃
  • Size: 25 x 20.5mm/0.98 x0.81”

Hardware Parameter

  • Processor: 32bit RISC-V Single-core processor
  • Main Frequency: 160 MHz
  • SRAM: 400KB
  • ROM: 384KB
  • Flash: 4MB
  • Clock: external crystal(32kHz); internal fast RC oscillator 17.5MHz(adjustable); PLL clock
  • USB: USB 2.0 Up to 12Mbit/s


  • WiFi Protocol: IEEE 802.11b/g/n
  • Bandwidth: Supports 20 MHz, 40 MHz bandwidth in 2.4GHz band
  • WiFi Mode: Station, SoftAP, SoftAP+Station and promiscuous mode
  • WiFi Frequency: 2.4GHz
  • Frame Aggregation: TX/RX A-MPDU, TX/RX A-MSDU


  • Bluetooth Protocol: Bluetooth 5, Bluetooth mesh
  • Bluetooth Frequency: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps


  • Digital I/O x13
  • LED PWM 6 Channel
  • SPI x1
  • UART x2
  • I2C x1
  • I2S x1
  • IR Transceiver: transmit channel x2, receive channel x2(random pin)
  • 2 × 12-bit SAR ADCs, up to 6 channels
  • DMA controller, with 3 transmit channels and 3 receive channels


There are several development options, I prefer the Arduino IDE or using Micropython with an IDE like Thonny


  1. Install VSCODE and Python
  2. Search for the PlatformIO plug-in in the VSCODE extension and install it.
  3. After the installation is complete and the reload is completed, there will be a small house icon in the lower left corner. Click to display the Platformio IDE home page
  4. Go to file – > Open folder – > Select the T8-C3 folder and click the (√) symbol in the lower left corner to compile (→) for upload.

Arduino IDE

  1. Install the current upstream Arduino IDE at the 1.8 level or later. The current version is at the Arduino website.
  2. Start Arduino and open Preferences window. In additional board manager add url: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json .separating them with commas.
  3. Select Tools -> Board -> ESP32C3 Dev Module


  1. Download and upload the firmware
  2. Note that the firmware upload address is 0x0, not 0x1000.


Again their are 2 options, one with the uploader tool and another without. The basic version is the equivalent of £4.70 and with the uploader it is £9.50

LILYGO® T8-C3 ESP32-C3 Development Board



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