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Mega2560 + WiFi R3 ATmega2560+ESP8266 32Mb memory USB-TTL CH340G Compatible for Arduino Mega NodeMCU WeMos Development board - AliExpress
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Amazon.com: SunFounder Mega 2560 R3 ATmega2560-16AU Board Bundled with R3 Board and Ethernet Shield W5100 for Arduino : Electronics
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Amazon.com: Songhe MEGA 2560 PRO Embed CH340G/ATMEGA2560-16AU Pro Mega Module with Male Pinheader : Electronics
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