Radio firm puts Arduino on a wireless network
Short-range radio specilaist LPRS has introduced a stacked module that allows Arduino boards to communicate wirelessly with other Arduino boards or PC hosts.
The system uses the supplier’s easyRadio technology operating in the 868-915MHz ISM band, and host Arduino boards can send and receive up to 180 bytes of half-duplex data per packet.
“There is no need for any complicated ‘bit balancing’ or elaborate coding schemes. Addressing and implementation of wireless networking (point-to-point and peer-to-peer) can be handled by Arduino application software proving providing flexibility without sacrificing simplicity of operation,” said the supplier.
The LPRS eRA-Arduino-S900 has a range of 200m and is designed to be lower power than similar 2.4GHz WiFi or Bluetooth devices.
The eRA900TRS wireless module provides the wireless serial interface as a COM port. No complex RF protocol software is required to create an instant bidirectional link.
Measuring 68.5 x 50 x 10mm the eRA-ARDUINO-S900 Wireless Arduino Shield is powered by the host Arduino’s 5V, consuming 25/35mA in idle/transmit.
An integral SMA antenna connector allows for use of an off-board antenna. Transmit and Receive LEDs are provided to confirm communication operation.
Other features include a digital RSSI (Received Signal Strength Indication), no need for host to handle A/D measurement and temporary channel selection allows host to scan other channels in real time.