The CH34X family comprises widely used USB‑to‑serial chips manufactured by WCH (WinChipHead), commonly integrated into generic UNO R3, ESP8266, and ESP32 development boards.
Overview
- SIX COLOR OPTIONS Includes one each of Yellow, Green, Blue, White, Orange, and Red 0.56" 4-digit 7-segment displays with decimal points (each display is a single color) — for color-coded projects or design matching.
- EASY TM1637 INTEGRATION Requires only 2 GPIO pins (DIO for Data, CLK for Clock). Compatible with Arduino, ESP32, Raspberry Pi, and more — simple libraries for quick setup.
- CHAINABLE DESIGN Share the CLK line across multiple displays while using individual DIO lines — suitable for multi-digit clocks, counters, or data dashboards.
- ACCESSORIES INCLUDED Each display includes a transparent black film cover to reduce glare and improve contrast, plus a 3D-printed enclosure for a finished look.
- VERSATILE FOR DIY PROJECTS Low-power, bright LED segments suitable for IoT, automation, sensors, timers, scoreboards, and temperature monitors.
6-Pack TM1637 4-Digit 0.56" LED Display
$23.00
Projects
HC-05 Bluetooth Module and Arduino Beginner Tutorial
This is a basic example to get you start with HC-05 Bluetooth Module. Depending on your specific requirements and the functionality you want, you may need to expand and modify the sketch accordingly.
Continue Reading