Digital Speedometers for Cars – How these Meters Work

The versatility of the ch-c0030pcb circuit board allows you to create a variety of devices based on it. One such device is a digital car speedometer where you can configure two speedometers, e.g. A city and a highway. To exit or enter the by-line, simply press a button to change the speed control. The speedometer reminds you when you accidentally exceed the speedometer. Added speed calibration function which can be adjusted to different wheel diameters. There are also indications of maximum speed, average speed, driving time and odometer. Before buying a speedometer you need to know that what are the best digital speedometers for cars, how it works and what are the features? Which are discussed below.

What is the purpose of this Device?

The Ch-3310 speedometer is used to indicate and control the car’s speed. The sensor can use a vehicle’s speed sensor (six pulses per meter of the road). The speedometer allows you to control speeds up to 300 km / h programmable. It also allows you to show the speed back. From the moment power is delivered, the engine starts running for hours, which means you can control engine time or use it to control training time. There is a feature to restart the timer. The built-in odometer can show the distance travelled during use. The odometer function has an odometer function. There is an indication of the average speed. Depending on the setting, the peak speedometer function is available. In the speedometer, you can set a threshold for controlling the speed of the vehicle to set the maximum speed. Provides output for controlling external alarms. It is supplied by the vehicle network at a voltage of 8 to 20 volts. Integrated speed calibration function.

How to Connect:

There are two ways to connect the digital speedometer with the car.

Method 1: Connect only the power supply: line 5 + 12 V, line 6 common, line 1 speed sensor. The 12 V supply is connected to a point where the voltage only appears when the motor is started. In this case, the controller turns on if the engine is started; If the engine is off, it must be off. In this case, all counters are reset if the controller is off. But … in this case, setting parameters and trip statistics can be impractical. If you want to be able to control the controller when the machine is stopped, the other connection method is more preferred for you.

Method 2: Connect the power supply to a circuit point (terminals 5 and 6) where the voltage is persistent, and connect terminal 2 to monitor the operation of the motor. Those. There must be points where there is only voltage under the motor. In this case, the voltage is continuously supplied to the controller and stores the data for all meters. In order not to leave the indicator lamp and put the controller in energy-saving mode, the monitor’s automatic switch-off function must be activated.

How it starts:

If the speedometer is on, the controller will diagnose when the user settings are read from the ROM and loaded into RAM. Check the data stored on the ROM and respect the factory tolerances. Displays the speedometer model and software version number.