Blinky for ESP32 LilyGO T-Beam

esp32 t-beam lilygo

This example contains a simple blinky program for the ESP32-based T-Beam by Xinyuan LilyGO version T22_V1.1, 20191212.

Setup arduino-cli or Arduino IDE with boards URL for ESP32

 https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

Install SiLabs CP210x USB to UART Bridge VCP Drivers for macOS
Flash the blinky firmware with the make command.
The RED LED underneath the display should blink.

Code

Download code

#define LED 4

void setup() {
  pinMode(LED, OUTPUT);
  digitalWrite(LED, LOW);

  Serial.begin(115200);
  Serial.println("Start blinky");
}

void loop() {
  Serial.println("LED ON");
  digitalWrite(LED, LOW);
  delay(1000);

  Serial.println("LED OFF");
  digitalWrite(LED, HIGH);
  delay(1000);
}

Makefile

BOARD?=esp32:esp32:t-beam
PORT?=/dev/cu.SLAB_USBtoUART

.PHONY: default lint all flash clean

default: all flash clean

lint:
	cpplint --extensions=ino --filter=-legal/copyright *.ino

all:
	arduino-cli compile --fqbn $(BOARD) ./

flash:
	arduino-cli upload -p $(PORT) --fqbn $(BOARD)

clean:
	rm -r build

Serial console

Serial output from the firmware.

Prototype

A photo of the actual setup.

Blinky for ESP32 LilyGO T-Beam

Code

Makefile

Serial console

Prototype

References