The JeeLink is a fully assembled and ready-to-use USB-type “stick” which plugs directly into a PC, Mac or USB hub. It contains Atmel’s ATmega328p AVR microprocessor, HopeRF’s RFM69CW wireless radio module and a branded FT232R USB interface chip.

The JeeLink v3c also has 16 Mbit of flash memory, which can be used to collect data. An accurate (10 ppm) crystal helps keep track of time, even when the attached computer is sleeping.

The on-board wireless radio module can interoperate with other JeeNodes fitted with either RFM12B or RFM69CW radio modules. The standard JeeLink 868 comes with the RFM69CW ISM-band 868 MHz radio module (the band used across Europe).