Operating instructions / User manual For Wireless Sensor version 4.8 Revision 1.40 March 24, 2009 All information presented in this document is confidential File name: OPERATING INSTRUCTIONS_USERMANUAL TAG 4.8.DOC Last saved date: March 24, 2009 Revision Control Author Name Yaron Kaufmann Yaron Kaufmann Yaron Kaufmann Description Initial version Updates Added implementation paragraph Revision Date 1.00 1.30 1.40 January 7, 2008 December 14, 2008 March 24, 2009 All information presented in this document is confidential Table of Content 1 Wireless Sensor operating instructions ............................................................................................ 4 1.1 Wireless Sensor indicator ........................................................................................................ 4 1.2 Wireless Sensor power up behavior ......................................................................................... 4 Table of Figures Figure 1 - Wireless Sensor...................................................................................................................... 4 All information presented in this document is confidential 1 Wireless Sensor implementation The wireless sensor is a simple wireless device that collects environmental parameters of temperature and relative humidity. Temperature and relative humidity samples are stored in an on board non volatile memory. Once the wireless sensors detect a compatible wireless network, it connects to the network, downloads taken every predetermined interval. The sensors use a very low duty cycle protocol to achieve very low power consumption. The sensor is implemented using a microcontroller, RF transceiver and a non volatile memory. the measurements stored, and while connected sends measurements 2 Wireless Sensor operating instructions Figure 1 - Wireless Sensor 2.1 Wireless Sensor indicator The Wireless Sensor has one LED indicator. On power up or reset the LED will blink. When the Wireless Sensor is connected to a network the LED will give a short blink once every 15.6 seconds. When the Wireless Sensor is in search mode (searching for a network) the led blinks at a rate of 2 blinks per 10 seconds. 2.2 Wireless Sensor power up behavior Wireless Sensor self test takes around 2 seconds, while there is no led activity. Several fast blinks to show the battery level: The LED will blink one time for any voltage level below 2.5V (The Wireless Sensor is operational down to 2.2V). 20 short blinks, once per second to attract the Wireless Sensor operator to the positive activation of the Wireless Sensor. During normal operation, the led will blink for a short time once every 15.6 Seconds to show that the Wireless Sensor is connected to a network. All information presented in this document is confidential Wireless Sensor in search mod blinks twice every 10 seconds This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment All information presented in this document is confidential