HomeLink HA Interface #5 - Ooops!

I decided to get back into putting the interface together and finishing out the prototype.  I also decided to pull it apart from the breadboard and put the hardware onto an Adafruit perma-proto board that would interface directly to the RPi0W.  Little did I know that I would make a strategic mistake.

First of all, I pulled up Fritzing and put the wiring up on the board (visually) as shown:

As shown, I added three red LEDs to be able to pulse as a visual reference when the HomeLink channel is selected.  I also place a 7805 power tab in the lower right hand corner of the board.  If the board looks weird it's because it is the size normally used for a regular sized RPi.  And yes, it does overhang.  The 5 lines are actually a cable that goes from the breadboard to the LiftMaster.  These can be seen in the following images:








The Ooops in the title stems from the fact that when I applied power (9v to the breadboard connector) I encountered the following:

1. while the RPi0W was booting, I tried out the clicker with the LiftMaster and it was working fine
2. the bootup of the RPi0W seemed to be going fine, then it rebooted, and then rebooted, etc.
3. I reached over to turn off the monitor I was using and burned my finger on the 7805 poking up from the breakboard
4. I went and got my temperature laser reader and when I rebooted the RPi0W I was reading in short order about 150 degrees Fahrenheit.  Way too much current was being drawn.

What I have since surmised is that the peripherals that I had plugged into the RPi0W were drawing way more than the 1 amp max the 7805 could handle.  So what I plan on doing is removing the 7805 and replacing it with a 5v 2.5a supply that plugs into the RPi0W connected with a step up converter to push 9v to the LiftMaster which only draws 40ma.