What is it?

The TinyGPS module is a small and simple "backpack" that can be added to just about any Teensy project. It can be directly soldered to the Teensy with headers to eliminate wires, but is also breadboard friendly. The board includes two low-current LEDs, a U.fl antenna connector and passives. The left LED can be programmed to do whatever you like, ie. blink when 3D fix is acquired, via pin 2. When placed on the Teensy, the board is unobtrusive to other pins.

Why did you make it?

Most shields out there are fairly large and not directly made for the Teensy.

What makes it special?

Awesome specs in a tiny package.

• Serial UART: Adjustable 4800~115200 bps (Default: 9600bps), Teensy Serial1 is used
• Update Rate: 1Hz (default), up to 10Hz
• Protocols: NMEA 0183, PMTK
• Horizontal Position Accuracy: Autonomous <2.5m CEP
• Velocity Accuracy Without Aid: < 0.1m/s
• Acceleration Accuracy Without Aid: 0.1 m/s2
• Timing Accuracy: 1PPS out 10ns
• Reacquisition Time: <1s (Cold start acquisition approx. 35s.)
• Operating Temperature: -40°C to 85°C
• Storage Temperature: -45°C to 125°C
• Dynamic Performance
• Maximum Altitude: 18000m, * Balloon Mode up to 80km altitude *
• Maximum Velocity: 515m/s
• Maximum Acceleration: 4G
• Power Supply 2.8V ~ 4.3V (by default 3.3V from Teensy)
• Power Acquisition 18mA
• Power Tracking 12mA
• Other features: Anti-Jamming, Multi-tone Active Interference Canceller
• Overall power consumption <70mA incl. Teensy

The active antenna setup allows for connecting external GPS pucks (via U.fl to SMA adapter), just make sure that 2.7V is enough to power it (some are 3.3V-5V input).

Recommended libraries: TinyGPS, TinyGPS++ (both included with Teensyduino installation)

Can be used in unison with the Slim MicroSD adapter and/or 10DOF MPU9250+MS5637 sensor addon.

Use cases: DIY drones, low-orbit balloon tracking, war-driving, etc.