Implement DMM control

[seritools]

DMM commands only work when the device is switched to/through the DMM mode manually first.

• :DMM:MEAS? - get the current measurement readout
• :DMM:CONFIGURE:VOLTAGE DC/AC → switch to voltage measurement, switch to DC or AC mode
  • :DMM:CONFIGURE:VOLTAGE? returns it out again, or error if not in voltage mode
• :DMM:CONFIGURE:CURRENT DC/AC → switch to current measurement, switch to DC or AC mode
  • :DMM:CONFIGURE:CURRENT? returns it out again, or error if not in current mode
• :DMM <val>
  • val: DIODe, CAPacitance, RESistance, CONTinuity
• :DMM? → returns mode: R (resistance)/RS (continuity)/DIODE (diode)/C (capacitance)/error (if voltage or current)
• :DMM:RANGE? → range readout
  • :DMM:RANGE ON → cycle through ranges (for non-voltage/current)
  • :DMM:RANGE V/MV/A/MA → set the respective range (for voltage/current)
• :DMM:AUTO? → range readout
• :DMM:AUTO ON/OFF → toggle automatic ranging on/off

[andycris]

Any status on this - would be really nice to have PC DMM readings.

[seritools]

I don't really need it myself, but if someone wants to implement it please feel free!

[andycris]

I don't really need it myself, but if someone wants to implement it please feel free!

I'd do it - but I'm just a telco engineer/tech -with no programming knowledge beyond bash scripting :(