Work for keen PIC coder

[sougata]

Hi Erik,

Sorry for being rude but I have had no reply from your side of my personal message to you and neither from the developer. This is not the right place to talk about anything other than technical issues.

[ERIK]

Hi Sougata,

Sorry for the delayed response, for some reason the email didn't make it to me on my home email ( I must've loaded my hotmail address which doesn't accept mail from unknown senders), and at work I'm managing over 50 jobs with all kinds of associated correspondence hence its hard to keep on top of it. You can try the software developer on gary @ benner.co.nz, and email me at mail1 @ cadvisions.co.nz (I've put spaces in there so web crawlers hopefully don't pick them up)

Rest assured we definitely want the job done. Yes, I agreee an ultrasonic transducer would probably work well. The additional cost of the transducer will not be a problem. I don't believe the optical sensors on the actuators offer an acceptable solution as seen in some of our initial testing. The relationship of the actuator push to the observed height of the desk is a very complex function which would be nearly impossible to represent with the degree of accuracy we are after. Therefore I am suggesting that the only way to proceed is with the Ultrasonic Transducer (or other sensor acting directly on observed distance). The software designers have requested that the controller recieve absolute measurements and place the desk to the correct height (I would think some form of calibration would be applicable here) perhaps take the desk to a known height and push a button to calibrate it, this should then get stored in the controller.

As for the hardware, there is one actuator lifting the desk and one which acts on the monitor stand. These two actuator will require independent control.

As for the job, the best way to get started is to give my client an estimate of costs to provide the controller code (in PBP format), and a layout for the Circuit board with components specified. Basically enough so that someone over here can build one (even better would be to ship one over).

Hope this helps. If you send me an estimate of costs I'll run it past my client and then we should be able to get started.

Regards, Erik