Hacking the Devantech SFR04 Ultrasonic Range Finder
Bert van Dam wanted to alter the default operation of his SRF04 Range Finder. Some Lego, a bit of JAL microcontroller programming and a VB computer program has made an interesting project. Bert has made a number of other interesting projects, have a look. “The Devantech SFR04 Ultrasonic Range Finder indicates the distance to the closest object within range. Echo’s that arrive later are received and processed, but subsequently ignored.