Computing stuff tied to the physical world


In Hardware on Dec 2, 2008 at 15:27

The nice part of this transceiver by Ideetron is that it’s cheaper yet more advanced than the 433 & 868 MHz radio modules by Conrad:


I does have that awkward 2mm pin header, but Ideetron most generously threw in a few female headers for free.

This modules uses a CC2500 chip operating at 2.4 GHz. The interface is via SPI commands, which provides various registers to exchange data both ways. All the bit manipulation and byte synchronization is handled, and the communication is bi-directional, allowing for a packet-oriented design with positive acknowledgement.

Unlike the iDwarf kit there is relatively little sample software to get started with this module, so it will take more work to get this going. Having an on-board antenna just like the iDwarf and XBee and using the same 2.4 GHz frequency band, the range might again be insufficient to pass through a few stone walls, but that’s just guessing for now.