21-02-2004 18:04

Rickertsen2

Re: pic: 114-Sensor Teaser

Well its pretty obvious what it is, but i have one question. Why didn't you just save the effort, money, and weight by buying one off the shelf?

21-02-2004 18:37

steven114

Re: pic: 114-Sensor Teaser

Because we didn't see any that fit our criteria and was in stock at Digikey, and because it was a fun learning experience.

21-02-2004 19:05

Jay H 237

Re: pic: 114-Sensor Teaser

That's neat. It's not too often you see people making thier own encoders from scratch.

21-02-2004 20:01

steven114

Re: pic: 114-Sensor Teaser

Instead of spending $50+ on each encoder, we spent a total of (maybe) $5, and it works quite well. I wired them up with a buffer and comparator to provide a digital output, which goes to two interrupt pins. Works great

22-02-2004 13:03

Kevin Karan

Re: pic: 114-Sensor Teaser

We made ours from scratch, but we kept it very small, and light. We made our disks out of polystyrene and the holder out of acrylic, cut them out on our laser. What is that big hunk of metal for, is it a guard?

22-02-2004 14:44

jacob_dilles

Re: pic: 114-Sensor Teaser

wow our team stuck 2 strips of retro reflective tape on the drillmotor-gearbox coupler and used the banner sensors... how much sucess have you had with the inturupts?

22-02-2004 15:10

steven114

Re: pic: 114-Sensor Teaser

The big hunk of metal is actually the drivetrain mount - it is doubling as a sensor enclosure. The interrupts work flawlessly - whenever something went wrong it was the circuitry, not the RC or interrupts.