diy posted by

DIY eyes.


DIY Ultrasonic Radar. True geeks don’t let their robots stumble around in the dark, they equip them with home made ultrasonic radar systems. No more bumping into chairs and grannies. And that goes for the robots too. Warning: not for the code cuttingly challenged.

 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. For a true radar all signals should be taken into account. So, time to heat up the old soldering iron and make some modifications to the Devantech SFR04 circuit board. We will add a wire to the ‘raw signal line’ and process the incoming data ourselves.

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