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.
TK01 XL LED
The TK01 is equipped with a high-quality 10mm jumbo-sized LED, designed for versatile applications. The LED's anode pin interfaces with a digital signal pin, while the cathode pin is connected to ground via a precisely calculated series resistor. This resistor ensures the current is limited to the maximum safe level for the LED when powered by 5V MCU, optimizing brightness and protecting the component from damage.
As different LED colors require specific forward voltages, the resistor value is carefully selected for each variant to prevent overcurrent, which could otherwise destroy the LED in seconds. The TK01 XL LED is fully compatible with 3.3V logic microcontrollers, such as the ESP32 and Raspberry Pi, offering seamless integration with a slightly dimmer output compared to 5V microcontrollers like the Arduino UNO R3. This makes the TK01 an ideal choice for a wide range of electronics projects requiring reliable, high-visibility... Read More...
TK01 FAQ
TK01 FAQ