How to Define and Use PORT on PIC18F4520 in C to Control Relay for Hairdryer

using p18f4520 to test relay switch.the relay switch is using to control hairdryer . how to define the PORT which connected to relay? how to use the port to test the relay?

Hi

if you look at the projects page you will see two, three projects all about pic micro and relay switching with full coding, flow charts, pcb design the lot

This should explain everything you need to know

The rest you will find in datasheets on the micro

There are stacks of articles on the net regards this subject as well

http://www.eeweb.com/project/mark_harrington/single-pic-micro-single-shot-bi-stable-relay

http://www.eeweb.com/project/mark_harrington

Also go and have a look at my own site link above

www.harrington.force9.co.uk

Best of luck with this Its not difficult just needs a little bit of effort

Finally dont you think it might just be a fraction over the top to be using an pic18fxxx device for a hairdryer? ? Just slightly waste full when you could use a far simpler smaller device Yes No hmmm

And how do you make the port an output or input then, well I never, trisb, trisa,trisc

OR

I thought the fsr's or indirect addressing

Would you also just believe that micro chip actually supply datasheets which tell's you how to do this with worked code examples in assembler

Gosh isnt that nice of them

Would you also believe they even supply a free ide with instructions too and a free compiler

Yee gods, so they do too

The stress that you must be experiancing is, well, it must be enormous

Here have a disprin

Poor old chap

Im wondering if Emu might give me a bit of inspiration Should I bury my head in the sands should I possibly develop the hump and become a camel