Looking for something inexpensive that works in the 433.92 MHz range and supports FSK modulation. Can anyone recommend something? All the 433 MHz items I've found seem to only support OOK/ASK which will not work.
Haven't looked very hard then, I guess?
The bottom tier of 433mhz stuff is OOK/ASK - but one step up from that, it's almost all FSK, and you get them the same place as your other cheap arduino modules - eBay. You can search part numbers among more reputable vendors if you want/need higher quality boards.
Before you order one of those, be sure to find the arduino library and make sure it exists.
The HC-11 and HC-12 modules use the TI CC1101 chip, which supports FSK modulation. Here is one supplier: http://www.seeedstudio.com/depot/433Mhz-Wireless-Serial-Transceiver-Module-1-Kilometer-p-1733.html
DrAzzy:
Haven't looked very hard then, I guess?The bottom tier of 433mhz stuff is OOK/ASK - but one step up from that, it's almost all FSK, and you get them the same place as your other cheap arduino modules - eBay. You can search part numbers among more reputable vendors if you want/need higher quality boards.
Before you order one of those, be sure to find the arduino library and make sure it exists.
Probably should have specified that I was looking for one with a known arduino library, which is why I was posting itin the arduino forums. I'll take a look at these.
Google virtualwire library arduino
They are all dumb units, you need a processor at both ends.
There are Arduino libraries for most (maybe all) of the ones that show up on that eBay link. What do you think the people who buy them are using them with? It's Arduino and PIC.
Google Arduino and the part number of the chip (if there isn't a link to Arduino resources in the eBay listing) that the board is based on, ex "si4432 Arduino" and look at the libraries you get - see if they look promising (have examples, look like they've been recently updated, etc)
CrossRoads:
Google virtualwire library arduinoThey are all dumb units, you need a processor at both ends.
That's the ook ones, he needs fsk. The fsk ones typically talk to the chip via i2c or spi, and need a library specific to the chip being used.
One of these will do what the OP needs.
http://www.hoperf.com/rf/data_link_module/HM-TRP-RS485.htm
Serial ttl output, so no libraries needed.
But they arnt cheap, around $20 each.
Any particular reason why you need FSK radios,
Didn't catch FSK vs OOK, thanks for bringing that out.
RFM23 transceivers, very cheap, does FSK, GFSK, 13dBm output