C code for ZENIT multimeter's control board.
ZENIT multimeter is an opensource & openhardware measurement device with error about 0.01% (depending on PCB design and final calibration).
You can measure:
- DC voltage (3 manual ranges (-4V,4V; -40V,40V; -400V,400V), auto-range)
- DC current (2 manual ranges with auto range option (-40mA,40mA; -400mA,400mA) and another 1 manual range on different input terminals (-5A,5A))
- Resistance up to 15MOhms
- PN passage voltage
- Temperature (RTD and NTC sensors).
Multimeter is able to comunitate throught SCPI commands (UART or WIFI).
This multimeter was developed for final national round of high schoolers electronics competition "ZENIT v elektronike".
More info and documentation here.