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https://github.com/LowPowerLab/RFM12B
RFM12B library
https://github.com/LowPowerLab/RFM12B
Last synced: about 2 months ago
JSON representation
RFM12B library
- Host: GitHub
- URL: https://github.com/LowPowerLab/RFM12B
- Owner: LowPowerLab
- Created: 2012-12-26T19:44:46.000Z (over 11 years ago)
- Default Branch: master
- Last Pushed: 2019-10-31T10:48:35.000Z (almost 5 years ago)
- Last Synced: 2024-06-28T04:33:32.425Z (3 months ago)
- Language: C++
- Homepage: LowPowerLab.com
- Size: 91.8 KB
- Stars: 133
- Watchers: 28
- Forks: 56
- Open Issues: 6
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Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- Awesome-arduino - RFM12B - Arduino RFM12B library (Libraries)
- awesome-arduino - RFM12B - Arduino RFM12B library (Libraries)
README
NOTE: not actively maintained
----------------
#### This library is not actively maintained anymore but is kept for reference and can still be used with RFM12b transceivers.
RFM12B Library
----------------
By Felix Rusu ([email protected])
Based on the RFM12 driver from jeelabs.com (2009-02-09 )
http://opensource.org/licenses/mit-license.php
### Features:
- easy API with a few simple functions for basic usage
- 127 possible nodes on 256 possible networks
- 128 bytes max message length
- customizable transmit power (8 levels) for low-power transmission control
- customizable air-Kbps rate allows fine tuning the transmission reliability vs speed (transmitting slower is more reliable but takes more time which implies more power usage)
- Sleep/Wakeup functionality for power saving
- Low battery detector with customizable low voltage threshold
- Interrupt driven
- Support for targeted ACK instead of broadcasted ACK (possible because of the new source byte in the header)
encryption with XXTEA algorithm by David Wheeler, adapted from http://en.wikipedia.org/wiki/XXTEA
Support for these chips: ATMega8 family (ATmega168, ATMega328) ATMega2560, ATMega1280, ATMega644P, ATTiny84, ATTiny44, ATMega32u4. So far only tested on ATMega 328/P
- wireless programming (for more info click [here](http://lowpowerlab.com/blog/2013/04/18/moteino-wireless-programming-source-code/), [here](http://lowpowerlab.com/?p=643) and [here](http://lowpowerlab.com/?p=669))
- the library needed for wireless programming is now [here](https://github.com/LowPowerLab/WirelessProgramming), install it in your Arduino/libraries folder (WirelessHEX for RFM12B)
### Installation
Copy the content of this library in the "Arduino/libraries/RFM12B" folder.
To find your Arduino folder go to File>Preferences in the Arduino IDE.
See [this tutorial](http://learn.adafruit.com/arduino-tips-tricks-and-techniques/arduino-libraries) on Arduino libraries.
### Saple usage
- [Sender](https://github.com/LowPowerLab/RFM12B/blob/master/Examples/Send/Send.ino)
- [Receiver](https://github.com/LowPowerLab/RFM12B/blob/master/Examples/Receive/Receive.ino)
- More examples in the [Examples folder](https://github.com/LowPowerLab/RFM12B/tree/master/Examples)
### TODOs (in order of priority):
- Support automatic ACK handling
- Refactor changing the SPI CS signal
- Add support for hosting multiple radios on 1 MCU