GPS-based universal clock generator Almost all commercially available GPS OEM modules provide a 1pps output, synchronized with GPS time. This pulse could be used as a reference to generate accurate high-frequency clocks, but special design has to address the short-term jitter affecting the 1pps signal. As a general guideline, an oven-stabilized crystal oscillator who guarantees the short-term stability is synchronized with the GPS 1pps for the long-term accuracy. HALO2 High Altitude Balloon Another successful high altitude balloon flight with some gorgeous images. Alexei writes: High altitude ballooning is an emerging hobby, since the price of GPS and communications equipment has gotten quite low. It is an excellent hobby for people fascinated by space flight and telerobotics and has many learning aspects — from systems design to electronics design to software engineering. There is also an exciting risk factor, namely, that you could lose your precious electronics if something malfunctions. In this project, many of my interest and knowledge areas came together. Also, I have verified that the Earth is indeed round and that space is black. Open GPS Tracker The Open GPS Tracker is a small device which plugs into a $20 prepaid mobile phone to make a GPS tracker. The Tracker responds to text message commands, detects motion, and sends you its exact position, ready for Google Maps or your mapping software. The Tracker firmware is open source and user-customizable. The current supported hardware platform is… Traffic Message Channel receiver This project used to display and report the main roads traffic status and incident. Here are some features :Dual display: colour road map (left) and detailed text messages (right) both with LED backlight,Up to 120 TMC messages are stored in memory,Auto/manual TMC message scrolling,GPS position locator/follower optional,Map navigation with mouse sensor and/or micro joystick,Map zoom 10km to 80km (in 10km steps) City and area presets preconfigured,High quality NXP TEF6901AH chip used for best performance,Integrated RDS/RBDS radio data demodulator. [via] PIC16F88 Delorme Tripmate GPS Logger This project focused on creating a simple serial data logger for the Delorme Tripmate (also known as the GPSTripmate). The Tripmate is an older GPS receiver that can be purchased on eBay for <$20.The plan was to create a GPS data logger that would record the position of the unit and allow to read back the latitude and longitude after acquiring the data. [via] DIY - GPS Camera attachment This is a great how-to on building a GPS system for your DSLR camera. The pictures are tagged with the exact GPS coordinates for later reference. Nice work! This version eliminates the need for the expensive MC-35 and even the special 10-pin connector. I’ve opted for a quick GPS receiver and encased everything in a small black box with a flash shoe mount. Because it is powered through the camera’s power source, a switch on the side of the box turns off the GPS. Version 3 should include a battery, rechargeable through a USB connection. [via] Send GPS data to your computer without a micSend GPS data to your corocontroller This project, complete with parts list, explains how to get GPS data into a Mac using a GPS module and a BlueSmirf Bluetooth chip, without any microcontroller. I agree with the maker who posts that a microcontroller would really just add cost to this project. Check out the details at the link below. GPS-based universal clock generator Almost all commercially available GPS OEM modules provide a 1pps output, synchronized with GPS time. This pulse could be used as a reference to generate accurate high-frequency clocks, but special design has to address the short-term jitter affecting the 1pps signal. As a general guideline, an oven-stabilized crystal oscillator who guarantees the short-term stability is synchronized with the GPS 1pps for the long-term accuracy. Evaluation board using the ET312 SiRF III GPS receiver The evaluation board using the ET312 SiRF III GPS receiver is finally done! This board will allow you to play with this very small but powerful GPS receiver. Wordpress Themes Electronics-Lab.com Blog The electronic hobbyist news blog This is a small GPS logger based on the San Jose Navigation FV-M8 GPS module that stores coordinates, altitude, and speed into an EEPROM.Then a software converts EEPROM stored data into .kml (Google Earth format).Altitude and speed graphs are also generated by the software. |
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