Quantity   Component name
1 × Adafruit small plastic project enclosure, waterproof https://www.adafruit.com/product/903
1 × Adadruit Feather Adalogger M0 https://www.adafruit.com/products/2796
1 × Adafruit FeatherWing OLED 128x32 https://www.adafruit.com/product/2900
3 × reference resistors 4k 0.1% accuracy i.e. Vishay PTF654K0000BZEK
3 × reference resistor 0k4 0.1% accuracy i.e. Vishay PTF65400R00AZBF
3 × Maxim Integrated MAX31865 SSOP package
3 × Adafruit PCB breakout (T)SSOP-20 https://www.adafruit.com/products/1206
9 × 100nF capacitors through hole, any accuracy
3 × 10nF capacitors through hole, any accuracy
1 × micro SD card
1 × LiPoly battery
1 × breadboard sized headers, pins, switches, jumpers and screw terminals
1 × optional: USB adapter for extra charging option