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GeogramONE - Open Source Tracking Device

The Geogram ONE is an open source tracking device based off the Arduino platform. This development board includes the the following accessories to get started experimenting with GPS tracking:12mm coin cell battery - The coin cell battery is used to backup the memory contents of the GPS to assist in a faster time to fix when power is removed.Single Cell Lithium Polymer Battery - The Geogram ONE is powered by a single cell lithium polymer battery which connects to the onboard 2 pin JST connector. If using your own Lipo battery please make sure its a single cell (3.7v) and the polarity on the connector is correct.Cellular Antenna along with the corresponding SMA to U.Fl adapter to connect to the cellular antenna connector onboard.Accessories that are not included with this listing:To receive tracking updates, you will need a SIM card - any unlocked 2G SIM card will work.A 3.3v IO FTDI cable/board similar to the ones sold here https://www.adafruit.com/products/70 or here https://www.adafruit.com/products/284 can be used to upload new firmware and reflash the onboard EEPROM. For the more experienced programmer who doesnt need the bootloader, there is an ISP connector on the board as well. The loaded sketch is based off the rev 1.6.5 of the Arduino IDE but should be compatible with the latest revision.The lithium polymer battery can be recharged by attaching a mini USB cable to the board. The charging circuit is preset to 500mA, so make sure your power source is capable of supplying 500mA (most computers are).HARDWARE SPECIFICATIONSQuad Band GSM 66 Channel GPS based off the MT3339 Chipset Atmega328p with Arduino Bootloader preinstalled 6 axis digital accelerometer On board single cell lipo fuel gauge 6 pin FTDI connector for connecting optional FTDI cable USB conection for charging Lipo battery 4 Analog inputs (3 can be used as digital IO) 2 Digital IO lines The board also comes preloaded with the latest firmware v3.0 to use as a tracking device. Communication is handled simply by sending an SMS from your smart phone. For more details on the GeogramONE tracking device, see http://www.dsscircuits.com/sale/product/dssc0120. FIRMWARE Features/Options - Command menu was completely redone and reduced to 4 possible commands- Ability to retrieve EEPROM settings via SMS- Geofence operation simplified and enhanced to rearm after breach- New Sleep options added to greatly reduce battery consumption when using sleep timers- Enhancement to UDP support for GPS Trace Orange to allow 1 second updates Removed Features/OptionsEmail support has been removed. The new firmware only supports SMS Command MenuThe previous command menu has been removed and replaced with a more streamlined set up. The firmware is now designed to constantly check the settings that are stored in EEPROM to configure board operation. Previous to this release, configuration settings in EEPROM did not always take effect immediately which required separate commands to initialize various functions. New Command menu options are as follows: Option 0 - SMS back current position using Google maps format (same as previous releases) example: 0000.0. Option 1 - Activate Alert on Motion. (same as previous releases) example: 0000.1. Option 2 - Store value to EEPROM address. (same as previous release but different command number) example: 0000.2.0.1234. (change password to 1234 which is stored at EEPROM address 0) Option 3 - Retrieve value in EEPROM at address. (New feature) example: 0000.3.5. (retrieve contents of address location 5 in EEPROM which is the default SMS address and send it the SMS address) Option 255 - Reboot the GSM chip. This is a just in case command that gives you the ability to remotely power down and reset the GSM chip. A complete list of EEPROM addresses is available in the spreadsheet. Geofence OperationThe previous version of the firmware required separate EEPROM settings to configure the type and location of the geofence (i.e. Active, Radius, Inside/outside, Longitude and Latitude). It got to be somewhat cumbersome to set up a geofence. The geofence operation has now been reduced to three EEPROM settings. Radius, Longitude and Latitude. As with the previous version, there are still 3 geofences available that can be configured as inside or outside fences. Setting the Radius parameter in EEPROM to zero will deactivate operation of the selected geofence. Setting a positive value for Radius will configure the fence as an inside fence (if you leave the defined area an alert is sent), while setting a negative value in Radius will configure the geofence as an outside fence (if you enter the area an alert will be sent). The radius is defined in Feet or Meters depending on how you have your regional settings configured in EEPROM and will be the radius around the longitude and latitude stored in EEPROM. As a way to simply the process of storing current longitude and latitude into EEPROM (you can configure them separately if you choose), you can precede the Radius value with an asterisk * when setting the EEPROM. This will take the current longitude and latitude and store the values in the EEPROM. As an example:Setting geofence 1 as inside fence with a radius of 100 feet around your current position you would send this command 0000.2.47.*100. This will activate the fence immediately around your current position. There are also two additional settings in EEPROM to help customize the overall geofence experience. These values are Breach Repetitions and Breach Speed. Breach Repetitions will define how many consecutive breachs need to occur before an alert is sent. GPS signals have a habit of wandering a little, so if you have a small fence radius it might be worthwhile to set a few repetitions that would need to take place before alerting. If you set it to 10 then the GO would have to be outside the area for 10 consecutive seconds before the alert is sent. Another option is breach speed. You can define a speed value that must be met before a breach repetition would be considered valid. For instance, lets say the device was on a stationary or very slow moving item, you could set the speed to 5 miles per hour. When the device speed exceeds 5 MPH and the number of consecutive breach repetitions are met, an alert will be sent. Once an alert is sent, the device will enter rearming mode. Once the device is safely back in the fence area that it left, for the amount of repetitions set in Breach Rep, the system will reset and once again continue to monitor for a breach. As a side note, the breach speed setting is ignored in rearming mode. New Sleep Functions and Sleep TimersIn the previous versions of the firmware, the ability to power down the GSM and GPS chips was available to help reduce power consumption of the board. Unfortunately there was no way to power down the microcontroller so the board still drew several milliamps of current. This unfortunately led to a maximum of a few days operation on a single charge with a standard battery. The new firmware allows you to put the microcontroller to sleep as well for a predetermined amount of time which can reduce the total power consumption of the board down to several hundred microamps. This could potentially extend usuage on a single charge to weeks and/or months depending on usage. Time on and time asleep are both configurable parameters with values ranging from 1 second up to several years. Value is stored as seconds in EEPROM and a setting of 0 will disable the sleep timers. You also have control over what subsystems will go to sleep (GSM and/or GPS chip, the microcontroller will always go to sleep). You also have the ability to override sleep timers based off motion and/or battery charging status. You can configure the device to either wake up/and or reset the countdown to the sleep timer if the device detects motion and/or if the device is plugged in and charging. These parameters are customizable using EEPROM address 35. DOCUMENTATION & SUPPORTCode and Eagle Files (https://github.com/DSSCircuits/GeogramONE)Support Forum (http://www.dsscircuits.com/forum/index.php/board,5.0.html)Schematic (http://www.dsscircuits.com/images/schematic/GeogramONEschematic.pdf)Hardware Overview (http://www.dsscircuits.com/images/datasheets/Geogram%20ONE%20Hardware%20Overview.pdf)Application Overview (http://www.dsscircuits.com/images/datasheets/Geogram%20ONE%20Application%20Overview.pdf)

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