Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 Table of Contents 1.0. Overview ........................3 1.1. Sensor Community .................... 3 1.2. Access Points (AP) .................... 4 2.0. Sensor’s communication with the server ..............4 2.1. Association: ......................4 2.2. Connection: ......................5 2.3.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 1.0. Overview The remote temperature sensor network is built upon a standard 802.11 b/g WiFi infrastructure. The System contains three main components: wireless sensors, access points and the server application that collects and presents sensor data from any location which has access to the internet. Remote sensors are deployed in the field and wirelessly transmit data from internal and external sensors such as temperature, pressure and humidity.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 1.2. Access Points (AP) Access Points use standard 802.11 Wi-Fi running in secure mode with WPA2 authentication and encryption. The AP provides DHCP and DNS services for the sensor. If sensors are within range of multiple access points they will choose the AP with the strongest signal strength.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 2.2. Connection: Once the module is associated to an AP and has a valid IP address, it then tries to establish a connection to the server. The module does this by using either the URL of the server or the server’s IP address stored in the configuration along with the port number on which the server is listening.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 Data Field Definition sn - MAC address of the sensor, this is unique for every sensor Host – current DNS entry for sensor TS – Sequence number BA – Battery level measured in mV, the sensor requires at least 2000mV TTI –...
The Coolbox has an external RJ45 connector for programming via that USB configuration board and connecting external digital or analog sensors. Note: Using external digital sensors requires special firmware. Contact Roving Networks for more information. Additionally, the Coolbox has a 4 port terminal block for connecting 2, 3 and 4 wire analog RTD temperature sensors.
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9600, NP, 8, 1. We suggest you use TeraTerm as your terminal emulator which can be downloaded from the Roving Networks support website. Please DO NOT use HyperTerminal as it is known to have issues with our products. TeraTerm can be downloaded from our website: http://www.rovingnetworks.com/support/teraterm.zip.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 4.0. Batteries and charging The Coolbox is designed to work with two AA batteries. It can run on rechargeable or alkaline batteries. Please insert the batteries as indicated on the battery holder. NOTE: Inserting batteries with the wrong polarity may permanently damage the Coolbox.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 Mode Protocol DHCP OFF, use stored static IP address DHCP ON, get IP address and gateway from AP Auto-IP, generally used with Adhoc networks DHCP cache mode, Uses previous IP address if lease is not expired (lease survives reboot) Reserved for future use set ip gateway <addr>...
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Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 Value Authentication Mode Open (Default) WEP-128 WPA1 Mixed WPA1 & WPA2-PSK WPA2-PSK Not Used Adhoc, Join any Adhoc network set wlan channel <value> sets the wlan channel, 1-13 is the valid range for a fixed channel. If 0 is set, then scan is performed, using the ssid, for all the channels set in the channel mask.
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Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 set wlan key <value> sets the 128 bit WEP key. If you are using WPA or WPA2 you should enter a pass phrase with the set wlan passphase command. Key must be EXACTLY 13 bytes (26 ASCII chars).
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 For example, if the ssid of the AP is “yellow brick road” You would enter “yellow$brick$road” Using the ‘get w” command will properly display the value: SSID=yellow brick road. set wlan window <value> sets the IP maximum buffer window size.
Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 Appendix A - 2, 3 & 4 wire RTD configurations The external temperature sensors can have either a four wire, three wire or a two wire configuration. It is important that the wire be connected in the following order to the terminal block: wire 4 (GND) wire 3 wire 2 wire 1 irrespective of the configuration.
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Coolbox User Manual www.rovingnetworks.com rn-temp_sensor_um Version 1.0 6/11/2013 Connect one wire to pin 1 and the other wire to pin 4. Connect a jumper wire between pins 1 and 2 and also between pins 3 and 4 as shown above. For more information on the various configurations of the RTD, please visit the Conax website at http://conaxbuffalo.com/default.aspx 809 University Avenue...
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Appendix B - Calibration of External Temperature and Analog Sensors The iSensor T2 and iSensorA2 measure temperature and current through a resistor network connected to the WiFi module analog sensor inputs. The resistors in this network can have slight variances and hence need to be calibrated once during manufacturing or prior to deployment.
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