Mike Atlanta
New member
High everyone,
I just finished my building my first HM (version 4.2.4) and powered it up but nothing happened. I've tried powering it with both the pi's usb and the 12v DC on the HM but still nothing happens. I can see 12V on the board, but not 5. I suspected I had a problem with the 5 Volt regulator, IC1, because I had 12 V on the input but only about .5 on the output. so I removed it and tested it by itself on a breadboard and it worked fine - 12 v in and 5 out. Any ideas? I suspect I have a short somewhere or a solder bridge, but I cannot find it anywhere. I did have a solder bridge on the mosfet, but corrected it and still no luck - could something have gotten damaged? Any help or suggestions on where to look would be appreciated. Also, I forgot to mention that the pi works fine on it's own.
Thanks,
Mike
I just finished my building my first HM (version 4.2.4) and powered it up but nothing happened. I've tried powering it with both the pi's usb and the 12v DC on the HM but still nothing happens. I can see 12V on the board, but not 5. I suspected I had a problem with the 5 Volt regulator, IC1, because I had 12 V on the input but only about .5 on the output. so I removed it and tested it by itself on a breadboard and it worked fine - 12 v in and 5 out. Any ideas? I suspect I have a short somewhere or a solder bridge, but I cannot find it anywhere. I did have a solder bridge on the mosfet, but corrected it and still no luck - could something have gotten damaged? Any help or suggestions on where to look would be appreciated. Also, I forgot to mention that the pi works fine on it's own.
Thanks,
Mike