Wireless Projects with microchips
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Now that I have the transmitter and receiver codes complete I came up with this idea to make a Transceiver, I have integrated the two souce codes on this page and wired another transmitter and receiver on the same board to a 16F648A microchip, it works good on breadboard so I am going to make it onto a prototype board..
I will make up some schematics and release the tranceiver code soon
I will make up some schematics and release the tranceiver code soon
- brad
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I have to say that I am really impressed with this whole project, I have looked through the source code and schematics and it has all come together just great!
How long have you been working with microcontrollers? he product you are putting out is of a fantastic standard. Where did you learn all your programming techniques?
When I get the time, and if you'd like to write up a page for the project, I'd be keen to upload it to the site. There would be so many uses for this, especially the transceiver.
How long have you been working with microcontrollers? he product you are putting out is of a fantastic standard. Where did you learn all your programming techniques?
When I get the time, and if you'd like to write up a page for the project, I'd be keen to upload it to the site. There would be so many uses for this, especially the transceiver.
Hey Brad, I started looking into microchips about a year ago, I have spent many hours reading books and looking at other peoples projects and souce codes to help me learn how to get around things, I have alot of time and patience I guess and I just enjoy making things work. also I have a family member that does alot of computer programming and a family memeber that knows alot about electrics, so they both have helped me along the way.
I am really impressed about all your projects too and enjoy getting out your 8x8 matrix car game that I built onto a circuit board
I know it looks abit messy lol
I am really impressed about all your projects too and enjoy getting out your 8x8 matrix car game that I built onto a circuit board
I know it looks abit messy lol
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- 8x8_car_game.jpg (61.38 KiB) Viewed 15586 times
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- 8x8 car game.jpg (75.77 KiB) Viewed 15617 times
- brad
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Cool looking game system you have there
I have been thinking for a while to make a two player game system where you could (perhaps) play via wireless link.
I was in the process of designing one quite a few months ago but haven't actually finished it. My original design just used wires to connect the two games together.
By the way, for only been having used microcontrollers for a year, your skill level is quite impressive.
I think it would be great if we all lived close to each other - then we could meet up and build some crazy big project!
I have been thinking for a while to make a two player game system where you could (perhaps) play via wireless link.
I was in the process of designing one quite a few months ago but haven't actually finished it. My original design just used wires to connect the two games together.
By the way, for only been having used microcontrollers for a year, your skill level is quite impressive.
I think it would be great if we all lived close to each other - then we could meet up and build some crazy big project!
Yeah wished we did live closer then we surely could make some amazing things!! or one big project.. I have a close friend that moved to australia a few years ago and another friend who has just moved back from there aswell surely its nicer weather there than it can be here in the UK!! hehe!
Anyway ive been working on this most of the weekend so here is the code which I have integreted from the transmitter and receiver project and made one tranceiver
http://www.bradsprojects.com/phpBB2/upl ... 6a_144.asm
Anyway ive been working on this most of the weekend so here is the code which I have integreted from the transmitter and receiver project and made one tranceiver
http://www.bradsprojects.com/phpBB2/upl ... 6a_144.asm
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- Wireless Transceiver 876A.asm
- (31.91 KiB) Downloaded 481 times
Here are the schematics for the transceiver, ive done it in two parts but they should be easy to follow..
click on the links to download
PART ONE
http://uploading.com/files/fac5bef5/tra ... PART1.sch/
PART TWO
http://uploading.com/files/ef6f1831/Tra ... PART2.sch/
click on the links to download
PART ONE
http://uploading.com/files/fac5bef5/tra ... PART1.sch/
PART TWO
http://uploading.com/files/ef6f1831/Tra ... PART2.sch/
- brad
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Very nice indeed
Have you thought of what you might use the transceiver for? Got a project in mind for it?
What kind of range are you getting with it and have you had any errors with it or does it work perfect all the time (when in range)
Last question, looking at your code, it seems that you can only press one button at a time - is this correct?
Oh and as for the schematic files, you just need to put them into a .zip format and then you will be able to upload them.
Have you thought of what you might use the transceiver for? Got a project in mind for it?
What kind of range are you getting with it and have you had any errors with it or does it work perfect all the time (when in range)
Last question, looking at your code, it seems that you can only press one button at a time - is this correct?
Oh and as for the schematic files, you just need to put them into a .zip format and then you will be able to upload them.
Well to be honest with you I have only tried it the length of the back garden haha! and measured it to be 10 meters from the transmitter to the receiver, dont seem to get any errors, but I am not using the correct 50ohm coax antenna and the transmitter was only running from a 9volt battery so not really using the full potential, but the transmitter datasheet does say it will go 1000meters but I cant see that myself?, these are very cheap transmission modules hehe!
I was thinking of making a few projects using these, like controlling relays or operating some disco lights?, But I am going to make a device from the receiver module, as you know I work with cars and we have problems with the alarm system remote always failing, so I was going to make a device that can detect a signal from the remote, as the remotes work on the same 433mhz, so then I know if the fault is with the remote or the car itself? it will be a simple tester
theres also a possibility that I might add a lcd screen to the transceiver or even connect it to a computer and control it from there?
and as for the last question yes you can only press one button at a time, but I guess you could change the code to suit any project or game system, theres even a possibility to add more data packets in the code to send more data, so instead of sending 52bits for one key press, instead you could send another data packet and send 62bits (=two key presses) of data in one transmission? I hope that makes sense?
I was thinking of making a few projects using these, like controlling relays or operating some disco lights?, But I am going to make a device from the receiver module, as you know I work with cars and we have problems with the alarm system remote always failing, so I was going to make a device that can detect a signal from the remote, as the remotes work on the same 433mhz, so then I know if the fault is with the remote or the car itself? it will be a simple tester
theres also a possibility that I might add a lcd screen to the transceiver or even connect it to a computer and control it from there?
and as for the last question yes you can only press one button at a time, but I guess you could change the code to suit any project or game system, theres even a possibility to add more data packets in the code to send more data, so instead of sending 52bits for one key press, instead you could send another data packet and send 62bits (=two key presses) of data in one transmission? I hope that makes sense?
- brad
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Yes
We also teach radio communications and radar etc... (I myself don't teach it but others are whips at this sort of stuff)
Anyway, you need to have everything matched perfectly otherwise you get whats called standing waves. This is where you haven't terminated the wire correctly and you have an impedence mis-match. The transmitted signal gets reflected back into the transmitter and dramatically reduces the power output.
I should ask them the best way to go about doing it...
We also teach radio communications and radar etc... (I myself don't teach it but others are whips at this sort of stuff)
Anyway, you need to have everything matched perfectly otherwise you get whats called standing waves. This is where you haven't terminated the wire correctly and you have an impedence mis-match. The transmitted signal gets reflected back into the transmitter and dramatically reduces the power output.
I should ask them the best way to go about doing it...
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