PIC's and licence free radio modules.

[Nigel Goodwin]

OK, I've got my new tutorial uploaded now, it will probably require a little tweaking and a few changes :lol:

It's to do with using licence free radio modules and Manchester coding.

There's basically five parts at the moment.

1: Sending single byte packets, displayed by either RS232 or LCD.

2: Sending four byte packets, displayed by either RS232 or LCD.

3: Remote control, turning LED's ON and OFF.

4: Remote control, toggling LED's ON and OFF.

5: Sending two analogue voltage readings, and displaying via RS232.

I look forward to comments :roll:

 

[Jay.slovak]

Good job Nigel, this tutorial will greatly reduce the number of questions asked here (or not...) :wink:

 

[samcheetah]

great!!!!! its really nice to hear that you got time to write a new tutorial. keep up the good work!

by the way how is the new beta release of winpicprog going? have you added support for the 16F88 and the 16F684

 

[Joel Rainville]

Another very nice one! Thanks for taking the time to write this, we all owe you a beer... or a cup of coffee... or tea? :lol: Thanks.

 

[Nigel Goodwin]

by the way how is the new beta release of winpicprog going? have you added support for the 16F88 and the 16F684

The 16F88 is added, I don't have a 16F684 and haven't looked into it?.

 

[rigdoctor99]

PIC

When I passed my electronics exams we had just started to get computers into the sylibus, so I now find myself at a loss with this stuff.

I am just getting my head around C++, but could somebody advise me on the best way to learn PIC? :?

My jobs in the electronics prototyping field never needed me to know programing, but as I get more work in as a free-lance tech I think I should learn about programing........ :shock:

 

[Joel Rainville]

Re: PIC

When I passed my electronics exams we had just started to get computers into the sylibus, so I now find myself at a loss with this stuff.

I am just getting my head around C++, but could somebody advise me on the best way to learn PIC? :?

My jobs in the electronics prototyping field never needed me to know programing, but as I get more work in as a free-lance tech I think I should learn about programing........ :shock:

You should start by searching the past discussions, then ask more specific questions in a new thread and not in a existing one about a slightly more advanced topic.

 

[rigdoctor99]

pic

Thanks for that.............I will go star a new thread :roll:

 

[Joel Rainville]

Re: pic

Thanks for that.............I will go star a new thread :roll:

Roll your eyes all you want, you're asking how to get started using PICs on a thread about a PIC tutorial. What did you expect? This? : "look for PIC tutorials!"

:roll:

 

[Electrix]

hey Nigel, great work .. this tutorial will surely help me a lot !
I'm a bit busy now, will study it after a few days....

One thing that came to my mind...

Can we use the PICs with integrated transmitters to send packets of data wirelessly..The rfPIC12F675, I think has an integrated ASK Transmitter for the 433MHz range. I have not delved into this at all, but want your opinion on this. Is it feasible, as compared to using exrternal radio modules, in terms of quick code development , cost per IC, quality of transmission.. ?
Since both, the modules and the PIC use 433Mhz, the issues about legal radio bands in my place is no more an issue.

 

[Jay.slovak]

Can we use the PICs with integrated transmitters to send packets of data wirelessly..The rfPIC12F675, I think has an integrated ASK Transmitter for the 433MHz range. I have not delved into this at all, but want your opinion on this. Is it feasible, as compared to using exrternal radio modules, in terms of quick code development , cost per IC, quality of transmission.. ?
Since both, the modules and the PIC use 433Mhz, the issues about legal radio bands in my place is no more an issue.

It still is! Remember that retail radio modules are certified (they have suitable parameters), wheras your home-made radio part may need a certification (that is not cheap). rfPIC is a bit more difficult solution (and it is only transmiter) so just head to retail radio module (no need for designing HF analog frontend).

 

[Nigel Goodwin]

hey Nigel, great work .. this tutorial will surely help me a lot !
I'm a bit busy now, will study it after a few days....

One thing that came to my mind...

Can we use the PICs with integrated transmitters to send packets of data wirelessly..The rfPIC12F675, I think has an integrated ASK Transmitter for the 433MHz range. I have not delved into this at all, but want your opinion on this. Is it feasible, as compared to using exrternal radio modules, in terms of quick code development , cost per IC, quality of transmission.. ?
Since both, the modules and the PIC use 433Mhz, the issues about legal radio bands in my place is no more an issue.

The rfPIC is essentially an 8 pin PIC built in a 20 pin body, the rest of the space being used for the transmitter components. It's a LOT more complex to use an rfPIC than a ready built module, because you're basically building the module from scratch. Considering the low price of the modules, I would suspect it will be considerably more expensive to use an rfPIC? - unless you're buying in production quantities.

My existing tutorial code should work on an rfPIC with only very minor changes, such as the output pin used.