hi, I was hoping to get some help with my pie crawler when I zero it or calibrate it, it disconnects the HDMI. I made sure the battery was fully charged. I also have the robot hat that came with the battery and I tried another battery. I have power hooked up to it that is giving it about 9 or 10 Watts. l also zeroed all of the servos like the instruction said. Any help is appreciated, thank you!
We tested the homing function while an HDMI connection was active and were unable to reproduce the same issue. May I ask what HDMI device you are using? If both the Robot HAT and the Raspberry Pi are powered simultaneously, does the same situation occur?
That happened to me. It isn’t disconnecting HDMI, but it’s actually doing a low power shut down because the battery the picrawler comes with isn’t powerful enough to run pi os and move all twelve motors to the same time.
What I did was buy a pipower 5 from sunfounder because it supplies 5V/5A and used that to power the pi and used the battery the picrawler came with to power the sunfounder hat and motors. DO NOT CONNECT BOTH WITHOUT BLOCKING PINS 2 AND 4.
Next I got a really cheap GPIO pin extender and cut off pins 2 and 4 (used an extender so I didn’t have to cut them off on the pipower hat), and connected it.
Order:
Bottom: pi 5
Middle: pipower 5
3rd: GPIO extender
Top: robot hat
If your not using a pi 5 or the HDMI cable is physically coming off ignore this
Edit: you need to remove pins 2 and 4 because the sunfounder gives power to the pi from those and the pipower 5 also give power to the pi and you shouldn’t power your pi 5 from two different sources at the same time.