Computing stuff tied to the physical world

RF size comparison

In AVR, Hardware on May 26, 2009 at 00:01

Here are four very similar wireless AVR-powered solutions side-by-side:

RF size comparison

From left to right:

  • Arduino Duemilanove with XBee shield (ATmega168/328) – 2.4GHz
  • JeeNode with RFM12B (ATmega168/328) – 433/868/915 MHz
  • Strobit board with RFM12B (ATmega168V) – 433/868/915 MHz
  • Busware CPM with CC1101 (ATtiny84) – 868 MHz

The XBee has more software on board, giving it more functionality. The CPM module, which is only marginally bigger than a DIL-14 chip – including antenna! – does not come with software loaded AFAIK, but there is open source software available for it. The middle two boards are compatible with Arduino IDE “sketches” and support the RF12 driver library by yours truly.