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Public boards
cscvon8
A crazy small 8-bit CPU built with only seventeen 7400-series chips.
pcbbomswitchresistorcapacitordiode
pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino
pcbbom
pcb-ttl-ftdi-esp-adapter
PCB to connect a TTL reader either to an FTDI or ESP12-E/F (WiFi)
schematicpcbbomUSBswitchregulatorresistor
ttl_tictactoe
An implementation of Tic Tac Toe in TTL logic
pcbbomswitchresistorcapacitordiode