strapOn – tinyEMF prototype

Here’s an example of what can be done with the strapOn protoboard platform. I’ve taken the tinyEMF circuit, saved some space (by using smaller rectangular LEDs that I filed down and replacing individual resistors with a 9-pin resistor bus), and rebuilt it on the protoboard so it’s easy and lightweight to wear. It’s currently powered …


Handheld EMF scanner.

Internals are a modified protoboard build of the tinyEMF firmware/hardware. There is an additional socket wired to accept potentiometer input, primarily to eventually allow brightness adjustment of the display by modulating OE of the 595 shift register.