A work in progress. This reverse tricycle robot drives like a forklift, the single rear wheel drives & steers. The two big wheels up front spin freely. The scrolling LED is a $5 LED badge off eBay: https://www.ebay.com/itm/293026885747
Cool project! Funny, while watching your video I suddenly saw it grow, sprout a weed-eater head & gas engine. Sure hate yard work in this heat. Hmm… lounge chair, remote control, Picaxe weed-eater…
Thanks for the inspiration!
I used an interesting workaround on this robot chassis to send IR commands over a simple 433 Mhz radio link. The IRIN decoder in the receiving 20M2's firmware allows SERVOPOS commands to operate servos continuously while awaiting new commands. Details here.