Hardware Description
2.6.2
Measuring Active Power
Figure 12. Measuring Active Power
1. Remove the 3V3 jumper (J12).
2. Solder a 0.1
Ω
resistor on the board at R62. Or attach a jumper wire between J12, so that it can be
used with a current probe.
3. Measure the voltage across the R62 using an oscilloscope with a differential probe. For the current
probe, coil the wire around the sensor multiple times for good sensitivity.
4. An ammeter can also be used for this measurement, but the results may be erroneous due to the
switching nature of the current.
17
SWRU397 – December 2014
CC3200MOD SimpleLink™ Microcontroller and Wi-Fi® Network Processor
Module - LaunchPad Hardware
Copyright © 2014, Texas Instruments Incorporated
