Throwing some motors are okay but making them go with the LoadCape is much more sophisticated.
Simple, low cost, SDR and RF instrumentation boards
Bone Tagzzz is an RFID cape for beagle bone black with Bluetooth Low Energy support for use as a smart, connected RFID sensor.
BeaglePhone
GVS Card
BeagleBone Black 0.96" OLED Display 128x64 pixels
Turning DNA into Data
BeagleBone Black SDR cape: software-defined receiver (0-30 MHz), web-controlled, ADC + FPGA + GPS
External Signal Cape - protecting Your vulnerable BBB IO-Ports by level-conversion and protection elements.
Antique Podcast Player
Replace the brain in your LEGO MINDSTORMS EV3 with a BeagleBone Black.
MikroElektronika mikroBus Cape
Affordable plastic BeagleBone Black enclosure
BBB, Arduino UNO 5V interface
Replicape is an open source hardware and software project for bringing 3D printer capabilities to the BeagleBone and BeagleBone Black
I2C relay UART RS232 optocoupled power supply switching PRU GPIO