ERA-ARDUINO-S900

eRA Shield for Arduino This shield allows Arduino boards to communicate wirelessly using proprietary LPRS easyRadio technology operating in the 433MHz or 868MHz (UK & Europe) & 915MHz (US) Industrial Scientific & Medical (ISM) bands. The essence of these devices is easy. Host Arduino boards can send and receive (half duplex) up to 180 Bytes of data per packet that will be seamlessly delivered and presented to all other hosts within range. There is no need for any complicated bit balancing or elaborate coding schemes. Easy: Data In and Data Out These devices provide considerably greater range (typically 200m) and less power consumption than similar WiFi or Bluetooth dongles operating in the overcrowded 2.4GHz bands. Frequency, bandwidth, power output and data rate can (optionally) be configured to allow multiple devices to communicate free from interference from each other and any other RF devices. Features Benefits LPRS easyRadio RF Transceiver technology Bi-directional link, no RF protocol software required Transmit, Receive, Busy and Power LEDs Diagnostics Integral SMA Antenna connector Allows use of extension cable for optimal antenna position Configurable RF parameters (optional) Fine tune for optimum performance Up to 180 Bytes per packet Ideal for Sense & Control applications Built-in Temperature Sensor Usable by host program Addressing and implementation of networking (point to point, peer to peer, mesh) can handled by Arduino application software thus providing flexibility and simplicity. An optional on-board 4 pin header allows connection of an external FT232 USB adapter device to configure the easyRadio module should need be. eRA Arduino 1.3.docx Page 1 of 3 eRA Shield for Arduino Specifications Supply: +5V 5%, Temperature 20C Parameter Min Typical Max Units Notes /Default Supply Voltage 5V Volts Powered by host Arduino Supply Current 25 mA Receive (Idle state) 35 mA Transmit Data Rate 2.4 19.2 115.2 Kbps Configurable - See Note 1 below Packet Size 1 180 Bytes Auto detect end of packet Frequency (Default) 433 MHz UK/Europe - Configurable 868 MHz UK/Europe - Configurable 915 MHz USA - Configurable Receive Sensitivity -107 -117 dBm Configurable RF Output Power -1 +9 +10 dBm Configurable Antenna 50 Via SMA Connector Range 200 m Dependant on conditions/terrain Operating Temperature -40 20 85 C Mechanical Size 68 x 52 x 10 mm Excluding connectors & antenna Weight 24 g Without antenna Notes 1) Parameters can be configured using easyRadio Companion software available from: www.lprs.co.uk 2) Please read this datasheet in conjunction with the easyRadio Advanced datasheet available from www.lprs.co.uk 3) The device is supplied with either a matching 433MHz or a 868/915 MHz antenna JP1 Pin Connections & Configuration Hardware Serial: Software Serial: Connects easyRadio to Connects easyRadio to Arduino hardware serial port Arduino software serial port (UART) on D0 and D1 on D2 and D3 Other Serial: Alternatively remove the shorting jumpers and use male to female jumper wires. Connect the female ends of jumper wires to easyRadio Rx and Tx pins and connect the male end to corresponding / preferred serial- enabled pins on Arduino. eRA Arduino 1.3.docx Page 2 of 3 D0 easyRadio Rx D2 D1 easyRadio Tx D3 D0 easyRadio Rx D2 D1 easyRadio Tx D3