Models SPI Flash Memory Add-ons for Teensy 3.X 7 120 0 STBC08 High-Current LiPo Battery Charger 5 267 0 Adafruit 9-DOF IMU Breakout 7 300 3 Adafruit Bluefruit LE UART Friend - Bluetooth Low Energy (BLE) 8 202 0 Teensy 3.2 42 2817 8