A how-to on building a Raspberry Pi stratum 1 NTP server: So this article is going to be my notes on how I built one using a cheap GPS module off eBay as the reference time source and a Raspberry Pi. (a 2B in this case, but hopefully the differences for newer models will be […]
Tag Archives: GPS
Dashcam GPS module
A look at the Dashcam GPS module by Electronupdate: After a 4 year run the dashcam on my car stopped working: a fault seems to have developed in the power system. It was mounted to the window by what I thought was just a simple mechanical mount… on further analysis it became clear that the GPS […]
SAMD21 LoRa development board with GPS
Michael Krumpus designed and built a SAMD21 development board with LoRa radio module and GPS receiver, that is available on GitHub: I’ve been doing some LoRa projects lately in order to learn as much as I can about this exciting new radio technology (see this LoRa mesh networking project and this LoRa weather station). ATmega328-based […]
Updating the KLN89B
Dmitry Grinberg writes, “Updating a 1996 plane GPS the 2016 way. Reverse engineering of old proprietary data cards, formats, binaries, creating of new tools to perform updates and their final open-source release.” More details at Dmitry Grinberg’s blog. Via the contact form.
GPS Disciplined Oscillator review and teardown
Andy Brown did a teardown of a GPS Disciplined Oscillator: The design did actually surprise me. I was expecting to see an OCXO pulled from something else together with a modern GPS unit and an MCU to co-ordinate the synchronisation all mounted on a custom PCB. What we’ve actually got is an entire Symmetricom GPSDO pulled […]
Yet another Arduino clock
Sverre Holm blogged about his Arduino clock project: Its main features are: Controlled by a GPS module outputting data over an RS232 serial interface, and handled with the TinyGPS++ library Shows raw GPS data such as UTC time and date, position, altitude, and number of satellitess Shows derived GPS data such as 6-digit locator Finds local […]
Simple Arduino SD-Card GPS/NMEA Datalogger
KF5OBS writes: This article is going to show how to build a minimalistic GPS datalogger. The GPS logger is based on the Arduino platform and stores raw NMEA sentences from pretty much any GPS module to a SD card. More details at KF5OBS blog.
Just good enough 10 MHz reference
Sverre Holm writes: Some time ago I noticed that the Ublox Neo-7M GPS has a 10 MHz output which is locked to the GPS system’s accuracy. Most people kept saying how useless it was due to excessive jitter unless it was cleaned up with a phase locked loop of some sort. But at the same […]
Teensy GPS Logger redesigned in smaller version
An update on J3tstream’s Teensy GPS logger project we covered previously: The last and final design, the Teensy and GPS is directly powered from 3.7v li-on batt. Power button in red, black button to enable charging in case of using +5v AC adapter. SDCard socket is mounted at the back of pcb. Project info at […]
GPS based car locator
A GPS based car locator by msuzuki777, an instructable here: The GPS continuously reads the latitude and longitude of the CarTracker. When the button is pressed, the coordinates are saved to the EEPROM. E.g., this would be the location of your car. Now, let’s say you walk out of a store and are looking for […]
GPS clock assembly, part III
An update on Kevin Rye’s GPS clock project we covered previously: I’ve been working on this clock for a long time, and a lot of effort has been put into it. I’ve learned so much from this project. I do have to admit some parts of the code aren’t as elegant as they should be, […]
Realtime GPS+GPRS tracking of vehicles using Arduino
Javier from CookingHacks writes: We made a
DEFCON 22: WarKitteh – cat on the warprowl
Why do the wardriving yourself when your cat can do it for you? Gene Bransfield gave this presentation at the recent DEFCON 22 conference, describing his efforts to use domestic pets wearing WiFi sniffer/GPS logging gear to essentially warprowl for WiFi hotspots. There’s also DoSdog, a standard pooch wearing a backpack concealing a Hak5 Pineapple, […]
Arduino GPS map navigation system
Kathy Yang of Elecfreaks writes: Built on the basis of Arduino UNO, GPS, SD card, TFT, GPS map navigation system is to obtain the real-time position information via GPS, to send it to UNO for calculation, according to the calculating results, and teamed up with the map file stored in SD card, thus presenting the […]
Arduino GPS distance calculator
GPS distance calculator created by a group of students from Indiana University, built as a final project: As sports fans building for golfers, we kept the design anchored to real courses in Indiana, where players care about precise yardage from tee to landing. The handheld logs latitude and longitude at impact and at rest, then […]
A small GPS Arduino watch/clock
Here’s Oscar Liang another Arduino GPS project, he writes: Garlow stands for GPS Arduino Rechargeable Logger OLED Watch. The device gives GPS information which is logged on SD card and shown on a OLED display. It can be carried as a watch or simply used as a GPS data logger. The whole system is based on Arduino […]
GPS for graphing calculators
Kerm Martian from Cemetech has documented a GPS for graphing calculators project build: Graphing calculators are nothing less than powerful pocket computers, capable of doing many of the same things as smartphones, desktops, and laptops. Given that they have reasonably fast processors, a display, memory, and ports to interface with the outside world, I set out […]
GPS clock prototyping, Part II
Kevin Rye posted an update on his GPS clock project we covered previously: It’s been a few months since I worked on the GPS clock. I couldn’t nail down exactly how I wanted it to work. I had a few ideas floating around, as well as a list of what features I wanted to include. However, in order […]
Simple Propeller GPS status display
If you’ve ever wanted to know how many GPS satellites are receivable at your location here’s a good beginneer’s Propller project that provides the answer. Its a GPS status display project Nick Ernst developed written in SPIN code and using a Propeller Mini Board, VPN11513 GPS Receiver, shift register and 7-Segment LED display. “The Propeller […]
‘GPS to Xbee bridge’ project
ezflyr posted another cool project in the project log forum, the GPS to Xbee Bridge: Here is my latest project, a ‘GPS to Xbee Bridge’. This project utilizes a USGlobalsat BR-355 GPS receiver, and an Xbee module to wirelessly transmit a GPS-derived time/date info packet to a variety of home-brew clocks around my home! These clocks […]