The XBee S1 802.15.4 from Digi is an RF Module that operates at 2.4 GHz. The module provides a data rate of 250 kbps and features a Freescale (Now NXP) MC13212 transceiver chipset. It transmits 1 mW of power and has a receiver sensitivity of -92 dBm. The module includes six 10-bit ADC inputs, 8 digital I/O, and 128-bit AES encryption. It requires a DC supply voltage from 2.8 to 3.4 V, consumes 45 mA of current while transmitting and 50 mA of current while receiving.
The XBee S1 802.15.4 has a 3.3 V CMOS UART serial data interface and supports API or AT commands and local or over-the-air configuration methods. This module has an indoor range of 30 m and a line-of-sight range of 100 m. The module measures 24.38 x 27.61 x 2.03 mm and is available with chip, wire whip, U. FL and RPSMA antenna options. It is ideal for applications requiring low latency and predictable communication timing. This module can seamlessly interface with compatible gateways, device adapters, and range extenders for providing developers with true beyond-the-horizon connectivity. The device has received regulatory approvals from FCC, IC (Canada), ETSI, C-Tick Australia and TELEC (Japan).