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InchDuino

One of many Arduino clones, but this one is 1 square inch!

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An ATMega328P microcontroller and as much easily accessible I/O as possible crammed into 1 square inch. Requires some sort of USB to UART cable. UART pins are connected to programming UART pins. All UART/SPI/I²C pins are data pins by default and need to be configured. VCC = 5V. AREF is not connected to anything and needs to either be connected to a stable reference voltage or to VCC directly or through a smoothing capacitor. I have not ordered any parts or the boards yet but I do plan to.

main.sch

Eagle schematic file

sch - 364.42 kB - 01/03/2024 at 21:22

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main.brd

Eagle board file

brd - 126.17 kB - 01/03/2024 at 21:22

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main_2023-11-14.zip

gerber zip

x-zip-compressed - 36.78 kB - 01/03/2024 at 21:22

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