TeleDongle is the standard ground station electronics for logging telemetry from Altus Metrum flight computers.
Plug the USB cable into a computer and TeleDongle shows up as a standard serial port. Attach a suitable antenna to the SMA connector and you're ready to go! Power is taken from the USB interface.
While any 70cm antenna may work, we've had good success with the Arrow 440-3 Yagi. With one of our optional SMA to BNC adapters, you can mount TeleDongle adjacent to the antenna feedpoint for optimal performance.
TeleDongle is mostly used as a receiver. Using it to transmit requires an amateur radio license or other authorization.
This is an RF interface designed primarily for use as a ground station interacting with Altus Metrum flight computers and trackers on board high power model rockets. The computer interface is USB. RF filter components are by default set for use in the vicinity of 435 Mhz, but can be altered to support other frequency ranges.
TeleDongle is now at version v3.0, with 5+ dB better receiver sensitivity than our previous models!
User View
- primary ground station for use with other Altus Metrum products
- 70cm ham-band transceiver
- receives data using 38k4 GFSK with forward error correction
- USB interface for power, configuration, and data interface
- 4 pin MicroMaTch connector for initial programming and debug
- application code upgradeable over USB
- 1.1 x 1.1 inch 2-layer board, fits inexpensive Hammond 1551 plastic enclosure
Developer View
- Hardware Features
* [NXP LPC11U14](http://www.nxp.com/products/microcontrollers/cortex_m0_m0/LPC11U14FHI33.html) System-on-Chip
* ARM Cortex-M0 MCU
* 32k Flash
* 6k RAM
* USB 2.0
* 8 12-bit analog inputs
* I2C, SPI, async serial
* digital I/O
- TI CC1200 Low Power, High Performance RF Transceiver
- Software Features
- Written mostly in C with some ARM assembler
- Runs from on-chip flash, uses on-chip RAM
- USB serial emulation for data interface
- Tools Used
- gEDA for schematic capture and PCB layout
- GCC compiler and source debugger
- Licenses
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