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davidkingsman / split-flap

code for split-flap display
https://www.prusaprinters.org/prints/69464-split-flap-display
GNU General Public License v3.0
404 stars 41 forks source link

Last 3 digits won´t spin correctly #15

Closed NoI3ody closed 1 year ago

NoI3ody commented 1 year ago

Hello,

i have build your amazing splitflap... but i have a problem with the 3 last digits of my splitflap. As you can see in the video, all flaps are calibrating, after that the 5 middle ones start rotating till they display the correct time. But while the 5 middle ones are rotating, the last 3 start rotating until they get a timeout. https://youtu.be/CSe2SAsITus

I have no idea what´s going on here. Tried to switch the nanos, the units, the cables but i couldn´t get it right? Anyone have a idea what i can test here?

davidkingsman commented 1 year ago

Have you tried enabling the serial output of the nanos and look at that? Maybe there is something going on with the power and not the code.

NoI3ody commented 1 year ago

I enabled the serial and testet. The last 3 Units gets this code in serial monitor. Could it be the power? I have a 3A powersource from a LED-strip.

I can´t post the serial monitor. I added a Screenshot of the beginning and the end of the rotation as the content between looks very similar to me. Beginn of serial monitor: 1 End of serial monitor: 2

NoI3ody commented 1 year ago

Any ideas, what the problem could be?

davidkingsman commented 1 year ago

I have no idea. Your serial output looks very weird. It starts formatted correctly, but then everything is in one line. I am still suspecting something with your power because of the gibberish characters in the serial output and the restarting in the middle of a line.

NoI3ody commented 1 year ago

I found the problem. It was not the powersupply. It was the ESP. The ESP sends for the last digits -1 when it has no data for the left over units. However my arduinos are converting -1 to 255 as you can see in the first letter received and after receiving 255 the code crashes. So i changed the errorhandling in FlapFunctions.ino Line 52 from -1 to 0. Now when i have an error or blank data it will display the blank tile. With this change everything is working as it should.