Best posts made by jvdpol

Problem solved. The api was down. I contacted M5stack via Twitter. They resolved the issue.

I'm using three timer cams with a tiny solar panel, lipo battery and a TP4056 as a charge regulator.
I've soldered a diode between the solar panel and TP4056 to avoid battery drain in the dark. The camera's are in a remote location, and are functioning more than a month without a problem. The battery voltage is around 4.15 volt, so still almost completely full.

It's built like this image. My solar panel is a 5 volt 60mA panel. The battery is a 500mA lipo battery. The output on the right (in the image the dc-dc step up, my timercam is connected) in the image connects to the onboard connector of the Timercam. I've used the original plastic shipping case to construct a waterproof case for the components.