Table 2.

Bill of materials

ComponentCost per unitSource of materials
PIR sensor$14.53Olimex, product #MSP430-PIR
Jumper wires$1.95Adafruit, product #1956
M0 Adalogger$19.95Adafruit, product #2796
FeatherWing oLED$14.95Adafruit, product #2900
Battery$29.50Adafruit, product #353
SD card$5.39NewEgg, product #9SIAC3J63S1330
3D printed housing
Total$86.27
  • All components needed to build one RAD device.