Bi-direction Bluetooth Classic comm. between ESP32 (Arduino framework) @AndroidEric

Bi-direction Bluetooth Classic comm. between ESP32 (Arduino framework) @AndroidEric

Uploaded January 2021 | Updated September 2026, 2 weeks ago

ESP32-DevKitC-V4 as client:
Connect to server, forward data from serial, to Bluetooth. Display data from Bluetooth on I2C SSD1306 OLED display.
arduino-er.blogspot.com/2020/12/bi-direction-bluetooth-classic-comm.html

NodeMCU ESP-32S act as a server:
It echo what received from bluetooth back to sender, and display on SPI ST7735 display.
arduino-er.blogspot.com/2020/12/esp-32s-as-bluetooth-classic-server-bi.html

Bi-direction Bluetooth Classic comm. between ESP32 (Arduino framework)

Convert .ttf to .py for micropython-ili9341 (a Micropython Driver for ILI9341 display)

Pico/MicroPython + ESP-01S (AT Command) act as TCP Client connect to Raspberry Pi/Python TCP Server

Raspberry Pi Pico/MicroPython: pair HC-05 and HC-06 Bluetooth 2.0 Modules

Raspberry Pi Pico/MicroPython + ESP-C3-12F (as a WiFi co-processor using AT Command)

UDP communication between Raspberry Pi/Python and Arduino Nano RP2040 Connect

Raspberry Pi Pico/CircuitPython read L3GD20(Gyroscope)

BLE Communication: Nano RP2040 Connect (Peripheral) and ESP32 (Central), in Arduino framework.

STM32F411/CircuitPython 7, with SPI ST7735 LCD

First Power up Raspberry Pi Pico, on Raspberry Pi.

Install CircuitPython 7.2.0 on ESP32-C3 (ESP32-C3-DevKitM-1)

XIAO BLE Sense (Arduino framework) IMU USB Mouse

Bi-direction Bluetooth Classic comm. between ESP32 (Arduino framework)