Not an issue realy - status enquiry.

[softfoot]

Hi, looks interesting - I have one of these and both the voltage and current calibration is off by about 10% and I'm wondering if re-programming could fix it rather than try fiddling with SMD devices.

Is the current "open" firmware considered a "going concern" (ie working) or is it still in development??

Best Regards,
Dave

[herm]

As there was no development for the last 8 months I created a fork of this firmware which turned out to be an almost complete rewrite: https://github.com/herm/ZPB30A1_Firmware

You can calibrate the device using my firmware, but it might not even be necessary as mine was off by about 10% also. So my calibration values might work for you as well.