ESP8266 Wroom Downloader MAX7219 4 in 1 Dot Matrix Display Module The headerless variant is ideal

The headerless variant is ideal for custom soldering

7-day warranty on manufacturing defects with hassle-free replacement on manufacturing defects

USB-C power adapter (5V/3A) - Purpose-built for Pi 4's power requirements

Board Arduino Nano (Original / Official) Microcontroller ATmega328P Operating Voltage 5 V Input Voltage (Recommended) 7-12 V Input Voltage (Limit) 6-20 V Digital I/O Pins 22 (14 digital

Integrated image processing pipeline with automatic white balance

ESP8266 Wroom Downloader MAX7219 4 in 1 Dot Matrix Display Module The headerless variant is idealESP8266 Wroom Downloader Program your ESP8266 Wroom modules effortlessly with this dedicated USB downloader board from The Engineer Store, Bengaluru. Designed for seamless firmware flashing, this downloader provides reliable USB to serial conversion with auto reset circuitry, eliminating the need for manual boot mode switching. Fast shipping, 7 day warranty on manufacturing defects, and expert support included. Specifications Type USB to Serial