Technology

HOW TO – Ultrasonic bat goggles

Suneth Attygalle made a pair of sight-blocking goggles that help you echolocate with the use of an ultrasonic rangefinder sensor. He used an Atmega8 chip running an Arduino bootloader, and some welding goggles. He even made a bat goggle instructable so you can make them yourself including source code and wiring diagram.

R/C tank

R/C tank

5volt made a sweet little radio-controlled tank using an ATtiny24 – This is the model R/C tank I am designing on a gearbox + Tracks & wheels from Tamiya. The radio is Hitec and two receiver servo outputs feed the microcontroller-based Pulse Position Modulation output to Pulse Width Modulation converter. – My Radio Controlled Tank […]