2 layers63 × 46 mm

Pi485
bvarner/pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino
31 parts41MIT
Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.

bvarner/pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino

bvarner/PZCT-02-BurdenShift
Resistive burden & level shift to convert PZCT-02 Split-core Current Transformer output to ADC input voltages.

bvarner/varnerized_ant_cpcbm
Since first coming across the ANT project, I've wanted to make one. However there are some esoteric hardware choices in the base project that seem to prioritize form over function and cost.

bvarner/pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino