Summary of Traffic Message Channel receiver using PIC18F8722
This article describes a TMC traffic information system featuring a dual display with a color road map and text messages. It utilizes an NXP TEF6901AH chip for high-quality reception, supporting multiple European countries. The device includes GPS optional tracking, mouse/joystick navigation, and 120 stored TMC messages. Schematics and source code are available for download, and the project is being adapted into a smaller OLED kit.
Parts used in the TMC Traffic Information System:
- NXP TEF6901AH chip
- PIC18F8722 microcontroller
- Nokia 6610 Colour LCD (128x128)
- Mouse sensor (red)
- Micro joystick
- USB controller
- Memory card
- Power supply unit (9V..12V AC/DC)
- RDS/RBDS radio data demodulator
Main roads traffic status and incident report and display.
Technical specifications:
- 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.
- All parts will be available at our shop.
- TMC countries to be supported: Belgium , Netherlands, Germany , France , Sweden and more to come…
- This product will be ported to a smaller OLED OmniBoard project (054 – LiveQ) and will be available as a KIT (PCB + parts) from our online shop.
Free schematics and source code available for download. Last update: August 15, 2008.
Dual display, mouse touchpad and joystick.
Power in (9V..12V AC/DC)
The tuner TEF6901AH, microcontroller PIC18F8722, USB controller, Memory card and power supply are located on the backside.
- Audio output and antenna input.
- Nokia 6610 Colour LCD (128×128) with road map.
- Mouse sensor (red) for touchpad navigation.
- Micro joystick for controls and navigation.
For more detail: Traffic Message Channel receiver using PIC18F8722
- What power input range does the system require?
The system requires a power input of 9V to 12V AC or DC. - How many TMC messages can be stored in memory?
The device can store up to 120 TMC messages in its memory. - Which chip is used for the best performance in this receiver?
A high quality NXP TEF6901AH chip is used for the best performance. - Can users navigate the map using a mouse sensor?
Yes, map navigation is possible with a mouse sensor and/or micro joystick. - What is the zoom range available for the map display?
The map zoom ranges from 10km to 80km in 10km steps. - Are schematics and source code available for this project?
Yes, free schematics and source code are available for download. - Does the system support automatic message scrolling?
Yes, the system supports both auto and manual TMC message scrolling. - Is GPS functionality included as a standard feature?
No, a GPS position locator/follower is listed as an optional feature.
