After coming up with the JeeBoard, which needs a PCB with at least an I/O expander and two LEDs/switches, I decided to go one step simpler and just wire up a version with no active components at all:
It connects the same 3.6 .. 4.5 V battery pack through a slide switch, and ties a breadboard to the AIO + DIO pins of ports 1 .. 3, along with +3V and GND. With a few headers placed flat on the board for various plugs.
Wiring this up is simple – note the added rubber feet:
Now it’s ready to go, with 3 rechargable NiMH’s:
And here’s the final setup:
Just to show how you can go nuts with plugs:
The battery pack connection is removable to give me a nice spot to insert a current-measuring multimeter.
First demo of this board coming up tomorrow…