OpenDPS Monitor

Disconnected

Function

Baud

Voltage

Max: 0.000 Min: 0.000 Avg: 0.000

0.000 V

set -- V

Current

Max: 0.000 Min: 0.000 Avg: 0.000

0.000 A

limit -- A

Power

Peak: 0.000

0.000 W

0.0000 Wh · 0.0 mAh --

Window

Voltage

Current

Click the chart to annotate · wheel to zoom · drag to pan

Calibration

Constants are slope/intercept pairs. ADC: value = raw × K + C. DAC: raw = value × K + C. Writes are read back and verified — the device accepts a malformed write silently and stores garbage.

Channel	K	C

Guided calibration

Connect a multimeter across the output terminals and press Start. It measures the accept ceiling, steps the supply through a spread of setpoints, and asks you for a reading at each one — then fits gain and offset and writes the result. Nothing is written until the last step.

Guided current calibration

This one needs a load across the output and it dissipates real power. Both paths run twice: once with the load setting the current, once with the supply limiting it.

Enter the real rating of the part you have — the setpoints are derived from it and capped at 60% of it, so leaving the default here is how you cook a small resistor. An aluminium-clad part bolted to nothing only manages about 40% of its nameplate rating, so enter roughly half the printed figure unless it is heatsinked. A through-hole resistor is typically ¼–1 W and will only reach a few hundred milliamps; several in parallel raise the current without raising the volts across each. A multimeter in series reads the current, or leave the reading blank to use I = V / R.

Load

R Ω

Rated W

Max A

Manual control

Setpoint V

device -- V · raw adc -- · dac --

Meter reads V

Setpoint	Meter	ADC	DAC

Voltage

Current

Power

Drop CSV file anywhere

Calibration

Guided calibration

Guided current calibration