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Public designs

4 boards
batterytester
@designer2k2

Arduino Shield to test 1-3S LiPo´s

schematicpcbbomresistorconnectordiodetransistor
GPL-3.000Jul 9, 2026
modbusrtu-test-shield
@cmb27

A shield for Arduino boards that provides an RS-485 transceiver, RS-232 transceiver, and a selection of buttons, lights, and knobs.

schematicpcbbomresistorpotentiometercapacitorconnector
CERN-OHL-P-2.000Jul 9, 2026
arduino_lmeter_shield
@michpro

Arduino Inductance Meter shield

schematicpcbbomresistorcapacitorinductortransistor
CERN-OHL-P-2.000Jul 9, 2026
arduino_opentherm_shield
@michpro

Arduino hardware shield to send and receive data from OpenTherm devices

schematicpcbbomresistorcapacitorrelayinductor
CERN-OHL-P-2.000Jul 9, 2026
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