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Posts Tagged ‘range finder’

DIY ultrasonic range finder

Wednesday, November 30th, 2011

Zipppys123 is building a DIY ultrasonic range finder based on this design. Once it's externally triggered a PIC12C508 is used to generate generate the ultrasonic pulse, and measure its echo. The ultrasonic pulse is amplified using a MAX232 TTL-to-RS-232 level converter, while the echo is amplified and demodulated using two...

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Posted in project logs | No Comments »

7400 competition entry: TTL based range finder

Friday, October 21st, 2011

[embed]http://www.youtube.com/watch?v=umTaJH-2pLM[/embed] Udif entered the TTL based range finder into the Open 7400 Logic Competition. It uses an ultrasonic sensor to determine the distance to an object. The sensor outputs a pulse, the width of the pulse is proportionate to the distance measured. The sensor signal drives a clock which in...

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Posted in 7400 contest | 1 Comment »

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