OpenTracker+ (OT1+)
Please note that the OT1+ is currently being phased out due to component obsolescence. The OpenTracker USB has replaced it as our entry-level APRS tracker.
The OpenTracker+ is an APRS tracker that can also receive data from other stations and has waypoint output capability. Use the OT1+ to report position, course and speed, time, and altitude when connected to a GPS -- not just from a vehicle, but anything, including a bicycle, weather balloon, or backpack. Or, use the OT1+ to encode and transmit data from a supported weather station. The tracker will also report telemetry from its onboard temperature and voltage sensors, and an external counter input can report a cumulative total of counter events or the number of events since last transmission. The OpenTracker+ replaces the OT1x and OT1m series. The OT1+ added waypoint output capability, increased program space and RAM, and a simplified hardware design. Available as a kit or fully assembled.
The OpenTracker+ SMT is a surface-mount version of the OT1+, with a 24-pin DIP form factor. This board has the same features as the OT1+, except it does not include a built-in temperature sensor or LEDs. Only available assembled.
OT1+ Rev 1.1
OT1+ in case
OT1+ SMT
Major features include:
- APRS telemetry output
- Fixed location operation for telemetry with no GPS
- NMEA waypoint output
- Dual configuration profiles with flexible selection
- On-board temperature and voltage sensors
- Supports 1-wire and Peet Bros WX stations
- Drive an external relay for radio power control
- Supports 1200 and 300 baud AFSK operation
- PSK31 support for PropNet^31 Operation
- Base91 compressed positions with 1-foot resolution
- SmartBeaconing™ for adaptive beacon rates
- Digital event counter, cumulative or since last transmission
- Free firmware upgrades directly from the website, no special hardware needed
- Source code released under Modified BSD license
Specifications:
| OpenTracker+ | OpenTracker+ SMT | |
| Voltage | DC 6.5 to 28V | DC 6.5 to 28V unregulated or 5V DC regulated |
| Current | 8 mA idle, 20 mA transmitting Max 200 mA @ 5 V available for GPS |
8 mA idle, 20 mA transmitting Max 200 mA @ 5 V available for GPS |
| Modes | 1200 bps AFSK (send and receive) 300 bps AFSK, PSK31 (send only) |
1200 bps AFSK (send and receive) 300 bps AFSK, PSK31 (send only) |
| Radio Connector | DB9 female (Kantronics pinout) | pin header |
| Serial Connector | DB9 male (RS-232 DTE configuration) | pin header |
| Dimensions | 2.5" x 1.6" x 0.75" | 1.22" x 0.72" x 0.2"(excluding pins) 31mm x 18mm x 5mm |
| GPS Interface | NMEA in/out | NMEA in/out |
Brochure
OpenTracker+ Brochure (two page .pdf).
OpenTracker+ Support
Configuration Program
The otwincfg.exe configuration program can be used with all models of OpenTracker and Tracker2. For otwincfg connection problems, see the FAQ.
Firmware
The easiest way to update the firmware is to use the 'Load Firmware from Web' option in the configuration program.
The following firmware files are provided for off-line use. This firmware is only for use with the OpenTracker+.
| otplus.s19 | OpenTracker+ standard firmware build 54908 | March 18, 2009 |
| otplus-1wirewx.s19 | Dallas 1-wire weather station support | December 17, 2008 |
| otplus-peetbros.s19 | Peet Bros weather station support | December 17, 2008 |
| otplus-kiss.s19 | KISS firmware | December 17, 2008 |
| otplus-smt-telem.s19 | Extended telemetry support for OT1+ SMT | December 17, 2008 |
| otplus-i2ctx.s19 | OpenTracker+ firmware for RTrak | April 12, 2008 |
| otplus-psk31.s19 | PSK31 (31.25 bps BPSK) support for OT1+ SMT | August 6, 2007 |
Revision History, Manuals, and Schematics
- OpenTracker+ firmware revision history, in a text file on Freepository
- OpenTracker+ Manual (English, pdf)
- OpenTracker+ Manual de usuario (Español, pdf)
- OpenTracker+ Manual (Simplified Chinese, pdf)
- OpenTracker+ Assembly Guide (Thai, pdf)
- OpenTracker+ SMT v1.5 Schematic
- OpenTracker+ SMT v1.5 Pinout
- OpenTracker+ SMT v1.0 Schematic
- OpenTracker+ SMT v1.0 Pinout
- OpenTracker+ SMT v1.0 Notes
