Well, I attempted to put the cables together to make the portable RPi. However, there were several issues that I had to deal with:
(1) when I applied power, it became obvious that there was not enough current going through the wires. I did check out all of the lines and the voltage was correct.
(2) I found one of the sides of my DPDT switch was momentary. I needed a switch that was ON-OFF-ON but I picked up one that was ON-OFF-(ON), the (ON) indicating that it was momentary - well, live and learn.
(3) I had the Adafruit 1601 2.8" touch screen on the RPi which added a 100ma load to the power supply, further dragging down the power
(4) the ethernet connection would not light off because of the low power.
So now I am back to trying out the application of power with regular power supplies to make sure that there is not something wrong with the particular RPi that I was using.
After using another, albeit more powerful power supply, I was able to get the RPi to come up and stay up, including the AdaFruit touch screen display. It would appear that I may have misjudged the amount of power needed with the switched setup that I was using earlier.
This is a blog mostly about techie things, what I am doing to my apartment network on the cheap, IOT, 3D Printing, Raspberry Pis, Arduinos, ESP32, ESP8266, Home Automation, Personal Weather Stations, Things That Go Bump in the Night, and some side issues that need discussing. Remember, sometimes the journey to an end is as much fun as the goal achieved!
