Quantity   Component name
1 × Donor RC transmitter As found at a thrift store or the like
1 × Teensy 3.2 Microcontroller from PJRC, https://www.pjrc.com/store/teensy32.html
1 × (option 2) Portable power supply The kind that you recharge a dead phone with
1 × NRF24L01+ or NRF24L01+PA+LNA Radio module Generic from eBay, Amazon, etc... Or higher quality from Adafruit, Sparkfun...
1 × Generic 0.96" OLED I2C display Generic from eBay, Amazon, etc... Or higher quality from Adafruit, Sparkfun...
1 × Teensy 3.2 Breakout (Revision D) Breakout board for the Teensy, allows for servo-style connection to I/O. https://www.tindie.com/products/loglow/teensy-32-breakout-revision-d/
1 × Rotary encoder with pushbutton
1 × Various connecting wire, standoffs, bolts, etc...
1 × (option 1) 2000mAh (or greater) Lipo battery https://www.adafruit.com/product/2011
1 × (option 1) Lipo charger/booster One that can handle charging and powering at the same time. https://www.adafruit.com/product/1944
1 × (option 1) USB Micro-B breakout board https://www.adafruit.com/product/1833