Adafruit CP2104 Friend - USB to Serial Converter

The Adafruit CP2104 Friend is a compact and efficient USB-to-Serial converter, perfect for seamless data transfer between microcontrollers and computers. Equipped with a high-quality CP2104 chip, it offers swift code upload speeds up to 2Mbit/s, significantly enhancing development efficiency.

This converter features an auto-reset function ideal for Arduino and ATmega328 boards, eliminating the hassle of manual reset. Its superior driver support ensures stable operations at high and variable speeds, outshining other serial chips like the CH340 and FT232RL.

Debugging becomes intuitive with the onboard RX/TX LEDs, which blink during data transmission. The board is configured to match FTDI cables: 5V power, 3.3V signal levels, and 5V compatibility — suitable for most 3.3V or 5V systems.

Compatible with devices like Arduino, ESP8266, and ESP32, it serves efficiently with any microcontroller utilizing an 'FTDI port'. Additional pins such as DTR, RI, and DSR are available for comprehensive modem control, if needed.

The package includes a fully assembled board, right-angle socket header, and male header strip for flexible connectivity options, such as soldering onto a breadboard or creating an FTDI-like adapter.

Automatic driver installation on Windows via Windows Update simplifies setup, while Linux requires no driver at all. Mac users can stay updated with the latest SiLabs driver for optimal performance.