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#47586
Hello everyone,

Some days ago, i bought a speeduino´s kit, the only thing was that i had to solder the resistors, etc. It seems that pcb hasnt shorts, and them i upload to arduino the august 2020 firmware but afterthat when i put together the pcb and the arduino, the last one goes off and i dont know why

Someone that had had the same problem or know something about this please write here

Your help would be really helpfull
#47593
myraul10 wrote:
Thu Jan 14, 2021 10:20 pm
Hello everyone,

Some days ago, i bought a speeduino´s kit, the only thing was that i had to solder the resistors, etc. It seems that pcb hasnt shorts, and them i upload to arduino the august 2020 firmware but afterthat when i put together the pcb and the arduino, the last one goes off and i dont know why

Someone that had had the same problem or know something about this please write here

Your help would be really helpfull
It's either short to ground on the 5v line on the speeduino board or some component that connects to 5v is mounted backwards. Most likely the 1N5919 zener. (D16 on v0.4.3)
#47668
Chris Wolfson wrote:
Sat Jan 16, 2021 10:06 pm
Make two good pictures, reasonable sized and post them. One from top, one from bottom of your build. If you do not want that, because of your build quality, you already know the problem... seen that too often in the past.
Attachments
IMG_20210118_175949.jpg
IMG_20210118_175949.jpg (2.3 MiB) Viewed 505 times
IMG_20210118_175911.jpg
IMG_20210118_175911.jpg (2.78 MiB) Viewed 505 times
#47700
Chris Wolfson wrote:
Mon Jan 18, 2021 7:24 pm
Your soldering looks quite good, how much current does the board draw from the 12 V source?
I must disagree. The soldering job looks terrible. Whole board is full of cold solder joints and solder bridges. I would be surprised if that works perfectly. For OP. Go through the PCB and fix the soldering. That will probably fix the problem too.

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