Well Shielded

The unit on the right will never light up green

I’ve spent the last couple of days working on some Bluetooth code to remotely control a Polaroid camera. I’ve got the code working and now I’m looking for suitably small units to host it. I’ve always been a fan of the M5Stack Atom device, particularly the one with the 25 led dot matrix display. I’ve now got the software working a treat, and so I thought I’d add battery power for a properly mobile experience. I got a couple of M5 external batteries, the Tailbat on the left and the Atomic Battery Base on the right. Both work fine, but unfortunately the Atomic base seems to block the Bluetooth signal. Wah.