Mini OLED USB C Power Analyzer

by Adafruit

This mini USB-C power meter lets you monitor voltages, amps and watts in real time on its 18x10mm OLED display.

A handy measurement data display to help you see in real time the load flowing into your devices as they charge via USB-C. You'll have immediate readings of voltages, amps, and watts along with their peaks.

This Tootsie Roll-sized power meter has a small OLED display (18mm x 10mm) that shows off voltage, watts, amps, and mAh and instantly reads the numbers for testing devices, such as chargers, cables, and devices. It comes packed with a few nice extras, such as showing the ambient temperature (press the button on the back) and calculating the cumulative Watt-hours and milliAmp-hours over a running time. Basically, it's an all-in-one power management solution that doesn't require any calculation or data logging on your part.

We use it to help analyze our USB PD projects, and also to do rough power measurements on circuits when we don't want to haul out our power supply - or to do it on the go!

Pairs nicely with the switch-able Adafruit USB C power delivery dummy board: get power over the terminal blocks and monitor voltage and current input. 

If you need a power meter for projects with a non-USB connector, consider the Mini Power Meter with Voltage, Current, Watts, mAh & mWh Display.

Technical Details

Specifications:

  • Voltage 4-30V
  • Current 0-12A
  • Timing 0-99 hours
  • Power 0-360W
  • Capacity 0-99999MAH
  • Current Direction Indicator.
  • Record the maximum power recorded.
  • Record a maximum current measurement.
  • Record a maximum voltage at a single point. 10: Electricity 0-99999WH
  • CPU temperature
  • Dimensions (excluding USB-C connector): 38mm x 16.4mm x 9mm

Product Weight: 7.8g / 0.3oz