LIVE: Testing and Troubleshooting esp8266 Light Build
In the previous live session, I soldered together a recording light on perf-board ( • LIVE: Soldering esp8266 based recordi... ) - in this video I start testing and troubleshooting it. The plan was to try and talk to it via serial and then WiFi, then clean it up. What happened instead was lots of troubleshooting part by part. In theory it should still have the original code I made, so this is mostly a test of my perfboard design and soldering.
I needed to move some of the wires, measured voltages plenty (Thou Shalt Measure Voltages) and found I needed to tie different sets of pins to get more sense. Unfortunately I did not get it fully working - and will probably need to analyse it with the scope.
Later testing (After the video) I found that the bootloader is outputting on 76800 - which I didn't try in the video. I suspect there will be more debugging but we now get: "rst cause:1, boot mode:(3,0)" - which may still indicate a GPIO pin at the wrong state (needing to be pulled up or down).
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