SpellFoundry / SleepyPi2

Power Management board for Raspberry Pi
http://spellfoundry.com/sleepypi2
GNU General Public License v2.0
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SleepyPi2 not starting when powered #12

Open daghemo opened 5 years ago

daghemo commented 5 years ago

I have a couple of Sleepy Pi 2 to play with, but they can't power on a Raspberry Pi when I hook up a power source, even if the worked in the past.

The Sketch seems not to be the problem here, because I've tried the same one on both the boards and I've even tried a "stock" one. The Sketch contains a "SleepyPi.enablePiPower(true)" to turn on the Raspberry and even "pinMode(LED_PIN,OUTPUT); digitalWrite(LED_PIN,HIGH);" to turn on the LED on the Sleepy Pi 2. I've tried both with a 12 VDC external power source and a 5 VDC one on the microUSB connector on the Sleepy Pi 2. I've even tried to remove the CR battery.

What I've noted is that the Sleepy Pi 2 wakes up when I rapidly touch the two pins dedicated to the power jumper! Using a power jumper is not desired here, because I should be able to power off the Raspberry Pi at certain times.

Can someone please explain this? Despite of the LED being off, is there something I can check, maybe with a multimeter, to now if the Arduino on the Sleepy Pi is working right?