I might seem lazy but I was asked if an arduino could monitor input pins on/off and a to d and send pin data to another arduino wireless. There are many wireless tx/rx modules on ebay but looking through demos couldn't see anything. There's talk of small basic somewhere.
Has anyone connected two pics or unos together using wireless modules? Any recomendations and code welcome.
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I've connected 2 Pics to each other using serial and it works fine, and multiple pics over a large area using RS485 converters although I had to use quite a low baud rate for that case.
I think I also got a serial connection over a 433 MHz link using cheap modules off eBay, although some gave an unreliable connection.
I've also connected a pic to an ESP8266 using serial - I think there is some demo code on the forum for that.
The main thing to watch out for is voltage levels - if your pic is running at 5v but the other device at 3.3v you risk damaging it (although in a lot of cases it will work).
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Thanks. I've never understood serial rx/tx using wires so wireless terms ,names don't mean much to me.
I'll ask the person who wanted to know if it was possible, exactly what he wants to do.
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The guy's going to draw a diagram and exlain some plans. Using a pc and ms small basic to control the sending pic, instead of hardware switches makes sence. I'll have to see what's needed. cheers.
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I might seem lazy but I was asked if an arduino could monitor input pins on/off and a to d and send pin data to another arduino wireless. There are many wireless tx/rx modules on ebay but looking through demos couldn't see anything. There's talk of small basic somewhere.
Has anyone connected two pics or unos together using wireless modules? Any recomendations and code welcome.
Stan,
I've connected 2 Pics to each other using serial and it works fine, and multiple pics over a large area using RS485 converters although I had to use quite a low baud rate for that case.
I think I also got a serial connection over a 433 MHz link using cheap modules off eBay, although some gave an unreliable connection.
I've also connected a pic to an ESP8266 using serial - I think there is some demo code on the forum for that.
The main thing to watch out for is voltage levels - if your pic is running at 5v but the other device at 3.3v you risk damaging it (although in a lot of cases it will work).
Bill Roth introduced me to the products below. Low cost and very very simple to use, and, fast.
RF UART modules , and each series has included normal power (0dB) version and PA (20dBm power amplifier and LNA) version, they are :
1, LC-2000 P2P module: 0dBm output , 10 to 30m application. http://www.inhaos.com/product_info.php?products_id=147
2, LC-2000PA P2P module: 20dBm output , 100 to 300m application. http://www.inhaos.com/product_info.php?products_id=148
3, LC-3000 M2M module : 0dBm output , 10 to 30m application, http://www.inhaos.com/product_info.php?products_id=162
4, LC-3000PA M2M module : 20dBm output , 100 to 300m application. http://www.inhaos.com/product_info.php?products_id=163
Also LC-3000 support P2P mode for remote upgrade firmware.
I have the following modules and they work with ease.
Evan
Thanks. I've never understood serial rx/tx using wires so wireless terms ,names don't mean much to me.
I'll ask the person who wanted to know if it was possible, exactly what he wants to do.
The guy's going to draw a diagram and exlain some plans. Using a pc and ms small basic to control the sending pic, instead of hardware switches makes sence. I'll have to see what's needed. cheers.