Table 2 Specifications of the XBee S1 module

Indoor/urban range

Up to 100 ft (30 m)

Outdoor RF line-of-sight range

Up to 300 ft (90 m)

RF data rate

250,000 bps

Serial interface data rate

1200 bps–250 kbps

Supply voltage

2.8–3.4 V

Transmit current (typical)

45 mA (@ 3.3 V)

ADC

6 10-bit ADC input pins

Operating frequency

2.4 GHz