Logic Shrimp - Free PCB Build
Dangerous Prototypes has a wonderful program where they give away blank PCBs of their prototypes. I may or may not have spent eight hours last Sunday hitting refresh on their website while watching TV, trying to finally win a free PCB. I built a Logic Shrimp, which is a four channel logic analyzer, which is super useful for debugging digital circuits. I had a little trouble finding some of the parts, so here is the complete BOM for the Logic Shrimp on Digikey:
- 8x 0.1μF 0603 Capacitor
- 1x 1.0μF 0603 Capacitor
- 2x 10μF 1206 Capacitor
- 4x 23K256-I/SN
- 1x PIC18F24J50-I/SS
- 1x 74LVC1G125
- 1x 74LVC573
- 1x 0.1" header
- 1x 0805 red LED
- 1x 0805 yellow LED
- 1x 20MHz 3.3V Oscillator
- 3x 2k 0603 resistor
- 1x 10k 0603 resistor
- 1x 100k 0603 resistor
- 1x USB MINIB Connector (You may need to file down the plastic pegs on the bottom)
- 1x 3.3V Vreg LDO