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How to Calibrate the Drok SKU 180077 (listed on Amazon as “9V Voltage Regulator, DROK DC Buck Converter 5V-23V 12V to 0.01-18V 5V Power Supply Step Down Transformer Module, 3A LCD Volt Stabilizer Circuit Board”)
This is for the Drok buck converter (voltage reducer) with input from 5-23V and output from 0.01-18V, which drops voltage by at LEAST 1 volt (so if you need 12V out you must have at least 13V in).
It comes with an information sheet which is marked SKU: 180077. Amazon ASIN is B07LC4LNTD.
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Input Jam