SoDoI was pretty crowded today. There wasn't really any space to spread out
and try the display gadget thing that I have been talking about. Maybe next month.
Anyways, Bob brought a couple of Pi Zero's with USB device attachments. The Zero
has some test pads on the bottom that bring out the USB pins. One of his devices
connected to the pads with pogo pins like this one:
That worked pretty well. Bob had it already configured on the Pi side. The host side
he had a chromebook and that took us a while to figure out. He didn't want to enable
developer and the built in shell doesn't have ssh. We found a chrome browser extension
that does ssh and we were in!
The other one is soldered to those test pads like this one:
After struggling a while we decided that maybe the soldering wasn't right.
(None of us can see well enough to tell)
Anyways I brought it home to check and repair under a microscope:
https://photos.app.goo.gl/itQwPTm6TtotqTnP7
Working!
Still had a lot of trouble with it. I used my new
Pinecil soldering iron (very nice for a cheap iron,
I'm really impressed.) Soldering looked good and the Zero booted right up powered by the laptop
USB. But no USB ethernet. I spent way too long thinking it was a software problem. I was
missing a data pin! The photo's above show success. SSH and VNC.
But the Pi is not connecting to WIFI. I'm thinking now that it may be that the laptop is not
providing enough power over the single USB port. I'll try another day with higher current power.
Thomas