In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

Your circuit is basically okay for measuring the voltage. 

The circuit will draw alot less current if you use a 15K for the 1K, and a 30K for the 3K, and forget about the 10K on the left. This will generate 4 volts if the supply is 12 volts. 

The 0.47uF seems a bit large. I would try a 0.1uF. 

Measuring current is going to be alot harder.
Usually you use a current sense resistor. But the voltages generated are very small.

Bean.

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