Each stop sign had to show arriving buses from the city's bus platform, in two languages, over a mobile link.
Approach
Custom firmware speaks the platform protocol over 4G. Routes are configured per stop. Single-row, three-row and double-sided layouts; voice announcements on later versions.
Result
Signs register with the platform and show each route's arrival time, "arriving soon", the clock and notices.
Traffic platforms drive their signs with an industry protocol: playlists, brightness modes and fault reports.
Approach
Custom firmware answers the platform over TCP: upload and play preset playlists, auto, manual or scheduled brightness, read back current content, report faults.
Result
Signs behave like native platform equipment. The bad-pixel check feeds the fault report and flags a module when faults pass a threshold.
Lane systems send vehicle class, weight and fee, and also switch lane lights and voice prompts.
Approach
The controller reads the lane protocol on serial or network. IO pins drive the lane and warning lights; a voice board reads out the fee.
Result
One controller per lane handles text, lights and voice.
10B · 30A · 50A
RS-232 / 485
IO + voice
Field devices & sensorsCUSTOMER CASE
YOUR SPEED 48
Radar speed feedback signs
Road-safety integrators
Challenge
Show each vehicle's speed from a radar: green under the limit, red over it, the limit when the road is empty.
Approach
The radar connects straight to a controller serial port. Firmware filters readings and shows speed, limit icon and warning text. One version logs speed and traffic volume to CSV files on the controller.
Result
No roadside PC. The sign reacts on its own.
5 Series · 10B
Radar on serial
CSV log
Field devices & sensorsCUSTOMER CASE
12.48 T
Crane load display
Industrial lifting equipment · East Asia
Challenge
Show the loads on two hoists, read from the weighing controller.
Approach
The controller polls the weighing unit over Modbus RTU and shows both values in tonnes with two decimals.
Result
Operators read the load from a distance, with no PC in the loop.
C-Power 20A
Modbus RTU
Field devices & sensorsCUSTOMER CASE
WIND 6.2 NE
Wind and weather displays
Weather and environmental monitoring
Challenge
Show wind speed, wind direction and weather readings next to the sensors.
Approach
The controller reads the sensor over serial at a set interval and shows speed and an eight-point wind direction. Settings live in a small file on the controller.
Result
A self-contained readout: sensor, controller, screen.
Serial sensor
Variables
Field devices & sensorsCUSTOMER CASE
12.4 KN
Vessel speed display
Marine equipment supplier
Challenge
Show the ship's speed from its GPS receiver.
Approach
The controller parses the standard NMEA 0183 speed sentence and shows speed in knots to one decimal.
Result
Speed on the screen straight from the GPS feed.
C-Power 10B
NMEA 0183
Remote platformCUSTOMER CASE
REDUCE SPEED
NTCIP road signs
Road agency in South America
Challenge
Signs had to follow the NTCIP traffic-sign standard used by the agency's central system.
Approach
NTCIP traffic reaches the controllers through the remote management server. Field inputs select messages, and a radar mode shows speed messages.
Result
Signs managed from the central system with the standard it already uses.
7 Series
NTCIP
Remote server
Remote platformCUSTOMER CASE
P1 128 · P2 FULL
City parking guidance
Parking operator platform
Challenge
Space counts from the operator's platform had to reach guidance signs across the city.
Approach
A server reads the platform's data file every second and pushes counts to each sign. Each sign can be limited to its own car parks; urgent notices go out the same way.
Result
Signs follow the platform automatically, with a default message if data stops.
Server
Platform data
SDK & librariesCUSTOMER CASE
WELCOME
Displays inside third-party terminals
Terminal equipment maker
Challenge
The maker's own software had to drive the built-in LED display.
Approach
We supplied a Windows DLL and a Linux shared library with logging. Content sent through the interface plays at once and can be selected later.
Result
The maker ships the display as part of its own product.
C-Power 1200
Linux .so
Windows DLL
Our open protocolLAB REFERENCE
PARKING · FREE 128
Parking space counter
Reference build · tested on a live controller in our lab
Challenge
Show a fixed title and a free-space number that changes as cars come and go.
Approach
Two windows. The title is set once and saved. Only the number window is updated, over TCP port 5200.
Result
Every update acknowledged. Title and layout come back after a power cycle.
Any controller
TCP 5200
2 windows
Every case, same five parts
Written so an engineer can judge fit in two minutes.
Customer and site names are left out unless the customer agrees. Facts that are not confirmed are not published.
Challenge
What the customer's system needed the screen to do.
Constraints
What could not change: software, wiring, protocol, layout.
Approach
Which path we used and what we built or configured.
Result
What runs today, in plain terms. No invented figures.
Specification
Controller, interface, display, firmware.
Your system is not listed? Send us its protocol or API.