Why Programming an AVR or PIC Directly is an Upgrade to Programming an Arduino
KeeYees 2 pieces downloader programmer for USBASP for ISP with cable and 10 pin to 6 pin adapter board for 51 for AVR series microcontroller: Amazon.de: Business, Industry & Science
External UPDI Programmer for AVR-IoT WG Board - Hackster.io
Arduino PRO Mini 5V Kompatibel ATmega 328 Board, 5,72 €
Im stuck on how the arduino is supposed to be set up | Chegg.com
Technoblogy - Tiny I2C Routines for all AVR Microcontrollers
Make a breadboard adapter for your AVR microcontroller using attiny2313 - ATMega32 AVR
AVR Dragon
pogoProg - Small AVR microcontroller pogo-pin Header