Control 30 LEDS With 6 Pins On The ATmega168 Microcontroller
USB 2.0 to UART TTL 6 Pin 3.3V and 5V Power – DitroniX.net Electronic Innovation IoT Designs
Amazon.com: Geekstory for ATMEL 51 AVR USB ISP ASP Microcontroller Programmer Downloader with Cable + 10Pin to 6Pin Adapter Board for Ender 3 or Ender 3 Pro : Electronics