A little back story. The interesting part behind my project is the use of an RT-N66U Asus router. This device serves as the microcontroller as well as the router between the internet via 4G and my RouterBot LAN which houses an on-board IP camera. The Router itself runs DD-WRT and my RouterBot application (written in C++). You can download toolchains to cross-compile code to run on DD-WRT (which was pretty fun!). All of the IO is done via USB including temperature sensors (USB to I2C), the Adafruit GPS (USB to serial), and the servo controller to drive the RC car (USB to serial).
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.