RE: PSoC ultrasonic range meter

genebren — Thu, 13 Jun 2019 21:49:27 GMT

Nice project. The results look pretty good and for the most part fairly stable.

Well done!

Gene

RE: PSoC ultrasonic range meter

DAB — Thu, 13 Jun 2019 19:14:46 GMT

I have all of the components, I need to build this one.

DAB

RE: PSoC ultrasonic range meter

three-phase — Thu, 13 Jun 2019 19:14:20 GMT

Great project to complete and well explained throughout the blog.

Kind regards.

RE: PSoC ultrasonic range meter

BigG — Thu, 13 Jun 2019 09:22:46 GMT

Great video. Love how you used the tape measure. Brilliant.

RE: PSoC ultrasonic range meter

dubbie — Thu, 13 Jun 2019 08:38:52 GMT

David,

A very interesting and useful project. I was particularly interested in the PSoC 4 module that oyu used as it seems low cost and effective. In the past I messed about with the original PSoC I technology which was programmed via the 25 pin D type printer connection - before the days of all pervasive networking. It looked like it was going to be a useful technology, especially as in the early days you could also programme sections of them directly in VHDL to make your own primitives. Sadly, networking arrived and within a short period of time they had locked out the printer port and the software wasn't sufficiently network friendly, so we just had to stop using it. We moved onto PICs which could still be programmed via the RS232C port.

I have also used ultrasonic rangefinders from a very early age and used the original Polaroid ones on my large mobile robot. This was the distance sensor from their camera system, which they sold as a separate product. I became very intimate with all it's workings and the characteristics of ultrasonics, mainly it is easy to use and doesn't cost that much compared to other rangefinders of the time, but it does have a limited range, it doesn't always bounce back, it has a very irritating beam spread that is almost impossible to overcome and you have to allow echoes from the rest of the room to fade away before you can take another measurement, especially if you have several operating at the same time. Plus, it doesn't work very well outside due to the wind. Still I had great fun with them.

Dubbie