120v control

[james]

I'd like to build a circuit where I can control 120v AC, basic on/off switch. I would also like to be able to control 12v DC with the same PIC chip. I an fairly new with programming but feel I can acomplish the programming necessary for this task. The hardware part I am very unfamiliar with, besides the basic voltage circuit, for pic. . along with connecting led's and basic push switches.

I found this relay that seems like I could connect it straight to the pic chip and attach terminal strips to the other side of the coil.

https://www.jameco.com/webapp/wcs/st...oductId=175214

I would greatly appreciate if anyone could give me some advice with the hardware side of this project. If anything, the relays and how to go about connecting them to the pic. Thanks for any feedback.

James

[james]

thanks, the info you've provided is greatly appreciated.

Does this look like the hardware necessary for connecting an IC to a relay? or is there potentional for failure here?

[ronsimpson]

Try this.
12 V relay coil?

[owali]

I want to try and automate my new home for fun. I would also like to learn how to control 120v appliances with a PIC. I would like connect some sort of sensor (maybe pressure) to the PIC to help control the appliance automatically.

Besides the sensor, PBP, PIC chip, what special hardware would I need for this? Does anyone have some sample code about this sort of thing?

Thanks

[Charles Linquis]

Use a solid-state relay. OMRON and others make them and they can be driven directly from a PIC pin.

[b1arrk5]

I've used the X-10 example in the PicBasic Pro manual along with a TW-253 interface to control lights, and turn the Christmas tree on and off. The modules are inexpensive, I got mine from Radio Shack. For driving relays I usually use the ULN2803, a darlington driver chip that will drive up to eight relays, (but not all eight at once,) I also like the Omron relays.

Jerry.

[malc-c]

Use a solid-state relay. OMRON and others make them and they can be driven directly from a PIC pin.

I agree - simple to interface, and quiet in operation - I used 8 in a "disco light controller" to switch 240 vac spot lamps. They can be expensive, but if you're lucky, e-bay can result in a cheap purchase

EDIT:

Just searched e-bay - 240v 4 amp SSR - pack of 4 for a buy now price of £5.99 plus £2.50 PPH
http://cgi.ebay.co.uk/solid-state-re...QQcmdZViewItem