bluetooth or RF - Electronic Circuits Projects Diagrams Free

ashfsk · 12th February 2007, 05:52 PM

Hello all.
Im doing a project which involves wireless transmission between a PIC18F6722 and a PC. The distance between the two wud be arnd. 10ft. Im real confused whether to use bluetooth or RF. The transmission wud be indoors. I have been told that bluetooth requires a lot of programming as compared to RF. Since PIC has a serial port, it wud be easier to use RF. So if i go for RF, I wud be using a Tx. at the PIC end & a Rx at the PC. In the case of bluetooth a module at the PIC end and a dongle at the PC.

So according to u which one wud be better( simple to install and use)?I would love to have ur thoughts on this. Also plz let me know whether the process I have described abt RF and Bluetooth r correct.

Thnx.

**Nigel Goodwin** · 12th February 2007, 06:06 PM

I would imagine using RF modules would be simpler and cheaper, you can check my tutorials for how to use them - notice you need a PIC at the PC end as well, to convert the Manchester coded data to RS232.

ashfsk · 12th February 2007, 06:21 PM

Thnx for the info sir. Cant we write a program such that the PC does the decoding?? Dont u get software to do the decoding on the PC? Well if two PICs r req. then I dont think I can afford that.

ClydeCrashKop · 13th February 2007, 01:57 AM

PICs are $3.50 each.

Papabravo · 13th February 2007, 02:06 AM

Quote:

Originally Posted by ashfsk

Thnx for the info sir. Cant we write a program such that the PC does the decoding?? Dont u get software to do the decoding on the PC? Well if two PICs r req. then I dont think I can afford that.

If you can get a windoze PC to bit-bang decode manchester then you'll get my vote for Ace Programmer of the year award.

Sceadwian · 13th February 2007, 02:06 AM

For 10 feet do you really need a full RF module or bluetooth? You can use an infrared diode and receiver for that distance easily at low transfer rates. Or if you're really set on wireless you could use a small AM radio using an inductor/capacitor and a piece of wire directly moduleted from a PIC I/O pin.

thin_master · 22nd May 2007, 04:47 AM

I have done bluetooth data transmission. I used a module from A7 Engineering. Its really easy to do it if you know the basic microcontroller programming. Be sure to learn the bluetooth basics before you attempt to do any project cos the concepts in bluetooth can be a bit complicated.

gramo · 22nd May 2007, 07:16 AM

The TLP/RLP434A RF modules are cheap as chips from www.futurlec.com

Wiring them to a micro controller is very simple...

For code examples, have a look here

Of course, this is all just incase you decide to use RF instead of Bluetooth

Sceadwian · 23rd May 2007, 03:48 AM

I almost bought a few of those on my last Futurelec order, but I want tranciever modules.

gramo · 23rd May 2007, 08:26 AM

Quote:

Originally Posted by Sceadwian

I almost bought a few of those on my last Futurelec order, but I want tranciever modules.

Aye, the TLP434 is the transmitter, and the RLP434 is the receiver. You can have multiple receivers and they will all receive the data transmitted.

This is handy if you have no requirement of sending data back to the transmitting device. Simply send the data with headers for each packet and each remote device waits for that header before it proceeds

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12th February 2007, 05:52 PM	(permalink)
ashfsk	bluetooth or RF Hello all. Im doing a project which involves wireless transmission between a PIC18F6722 and a PC. The distance between the two wud be arnd. 10ft. Im real confused whether to use bluetooth or RF. The transmission wud be indoors. I have been told that bluetooth requires a lot of programming as compared to RF. Since PIC has a serial port, it wud be easier to use RF. So if i go for RF, I wud be using a Tx. at the PIC end & a Rx at the PC. In the case of bluetooth a module at the PIC end and a dongle at the PC. So according to u which one wud be better( simple to install and use)?I would love to have ur thoughts on this. Also plz let me know whether the process I have described abt RF and Bluetooth r correct. Thnx.

12th February 2007, 06:06 PM	(permalink)
Nigel Goodwin	I would imagine using RF modules would be simpler and cheaper, you can check my tutorials for how to use them - notice you need a PIC at the PC end as well, to convert the Manchester coded data to RS232. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

12th February 2007, 06:21 PM	(permalink)
ashfsk	Thnx for the info sir. Cant we write a program such that the PC does the decoding?? Dont u get software to do the decoding on the PC? Well if two PICs r req. then I dont think I can afford that.

13th February 2007, 01:57 AM	(permalink)
ClydeCrashKop	PICs are $3.50 each. __________________ C:\WHUT ? Beware the asterisk *

13th February 2007, 02:06 AM	(permalink)
Sceadwian	For 10 feet do you really need a full RF module or bluetooth? You can use an infrared diode and receiver for that distance easily at low transfer rates. Or if you're really set on wireless you could use a small AM radio using an inductor/capacitor and a piece of wire directly moduleted from a PIC I/O pin. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

22nd May 2007, 04:47 AM	(permalink)
thin_master	I have done bluetooth data transmission. I used a module from A7 Engineering. Its really easy to do it if you know the basic microcontroller programming. Be sure to learn the bluetooth basics before you attempt to do any project cos the concepts in bluetooth can be a bit complicated. __________________ Computer and electronics projects

22nd May 2007, 07:16 AM	(permalink)
gramo	The TLP/RLP434A RF modules are cheap as chips from www.futurlec.com Wiring them to a micro controller is very simple... For code examples, have a look here Of course, this is all just incase you decide to use RF instead of Bluetooth __________________ Spency. PIC Micro's - Your mind is the limit PIC's and interfacing with other devices - a PIC Basic Guide @ digital-diy.net

23rd May 2007, 03:48 AM	(permalink)
Sceadwian	I almost bought a few of those on my last Futurelec order, but I want tranciever modules. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."