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It may be a bit late, but I think the problem is that it looks like TomK32 is using an I2C screen (scl/sda) not SPI (sck/mosi/miso/ce)ucglib works fine for spi, on my ILI9341 screen to the ESP8266 I usedsck=d13 mosi=d11 miso=d12 (those are the esp8266 hardware spi default) then ce=d2 cs=d8 d/c=d4 reset=d0the screens are sensitive to power upset on boot, mine was stuck in white screen mode till i put a hard reset into the code.
Sounds like a good project! I'm a bit confused about what scripts the ESP8266 ends up retaining; I see we can nominate a "boot" script which obviously should control all our other scripts; are there any constraints re the lua code we upload? e.g. can our ESP8266 have a web server, or would that conflict with the OTA code?
interesting question - how much current is needed? We don't want the act of measuring a battery voltage to drain it!
FYI those updated tuned lengths are in Lee Hite's very comprehensive website on wind chime construction - http://leehite.org/Chimes.htmwhich also gives details on tuning for other scales.
Your idea is worth trying - another idea I have seen to save cost is have the same layout (stator coils between rotors) but magnets only on one rotor, with the other a plain steel rotor that still "pulls" the flux thru the coils.
Arduino TFT display and font library
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