Difference between revisions of "Project:Alpha transceivers"
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== Introduction == | == Introduction == | ||
The [http://www.rfsolutions.co.uk/acatalog/FM_Radio_Modules.html Alpha family] of radio modules are available from Maplin, [http://www.maplin.co.uk/module.aspx?moduleno=267236 codes A58JN-A63JN]. | The [http://www.rfsolutions.co.uk/acatalog/FM_Radio_Modules.html Alpha family] of radio modules are available from Maplin, [http://www.maplin.co.uk/module.aspx?moduleno=267236 codes A58JN-A63JN]. | ||
| + | [[File:ALPHA-TX-500.jpg|thumb]] | ||
The [http://www.rfsolutions.co.uk/acatalog/DS-ALPHATX-4.pdf transmitters/receivers] are £4 each, and [http://www.rfsolutions.co.uk/acatalog/DS-ALPHA-TRX-5.pdf transceivers] are £6 each. | The [http://www.rfsolutions.co.uk/acatalog/DS-ALPHATX-4.pdf transmitters/receivers] are £4 each, and [http://www.rfsolutions.co.uk/acatalog/DS-ALPHA-TRX-5.pdf transceivers] are £6 each. | ||
| − | + | If you get one of these, read the latest [http://www.rfsolutions.co.uk/acatalog/DS-ALPHA-TRX-6.pdf TRX documentation], as the TX and RX are slightly rearranged equivalents. | |
== Architecture == | == Architecture == | ||
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They are controllable through SPI, and provide a clock, interrupt pins and low battery indicator for use without an Arduino. | They are controllable through SPI, and provide a clock, interrupt pins and low battery indicator for use without an Arduino. | ||
| + | |||
| + | == Software == | ||
Revision as of 03:47, 31 May 2010
Introduction
The Alpha family of radio modules are available from Maplin, codes A58JN-A63JN.
The transmitters/receivers are £4 each, and transceivers are £6 each.
If you get one of these, read the latest TRX documentation, as the TX and RX are slightly rearranged equivalents.
Architecture
They are single chips with an external crystal which communicate up to 300m using FSK at 433, 868 or 915MHz. They have auto tuning, RSSI, and programmable gain, channel and sensitivity.
They are controllable through SPI, and provide a clock, interrupt pins and low battery indicator for use without an Arduino.