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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
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Atmel AVR and 8051 series ISP programmer - Electronic Microcontroller Based Schematics/Circuits, Projects and Tutorial
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