ICL7135 PCB Board Four and a Half Voltmeter
Using standard 125KHZ crystal clock signal, so that the voltmeter repeated acquisitions accuracy more stable.
Provide a single line of data communication port, more convenient connection with the microcontroller (clock 125KHZ).
This four and a half meter is made up of two pieces PCB synthesis, is suitable for DIY, the board is reserved a position for current sampling resistor, convenient to modify for ammeter
1 x ICL7135 PCB Board
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