PPK2 measure low power from peltier module

[larryd]

Hi,

I'm trying to measure and log the low power coming from a peltier module. (TEG seebeck effect).  In Ampere meter mode with LED for load I get nothing.  Replace TEG with button battery (40 mA according to meter) still nothing. yes without PPK2 it works.  I'm using gnd and vin pins in circuit.  PPK2 is powered over one usb cable plugged into data/power usb. Should this be working?  Or is this not how PPK2 functions?  I haven't found anything similar in any videos etc,

thank you,

Larry

[hmolesworth]

Perhaps turn on the slider on the App after setting Ampere Mode - see my notes ppk-2-not-passing-through-external-power-in-amp-mode

[larryd]

The diagram helped, I now at least can get readings from a battery, just not the micro amps that a handheld meter gives me when testing the peltier.  thank you.