Specifications

Supplier Information

Supplier: Zhejiang Landian Power Co., Ltd.

Address: Bld 19, No.488-1, North Donghu Road, Linping District, Hangzhou City, Zhejiang Province, China.

Tel: +86-571-88866688

Email: lddl@ld-zj.com

1. Product Name

Color TFT Display, Model C350

2. Specifications

• Working Voltage: DC24V-DC100V
• PL+ Maximum output: PL+ Maximum load current: 800mA
• Rated Current: 5mA/39V
• Maximum Voltage: 25mA/39V
• Shutdown leakage current: <1uA
• Operating temperature: -20 ~ 45°C
• Storage temperature: -30 ~ 70°C
• IP Level: IP65

3. Appearance Material and Size

3-1. Material

The product shell is made of black ABS material, the display window is made of PC transparent material, the button is made of silicon rubber material, and the bracket is made of black nylon material.

3-2. Size

Side view diagram of the display unit showing a thickness of 10mm and a mounting depth of 21mm.

Front view diagram of the display body showing dimensions of 66mm width and 105mm height.

Diagram of the bracket hoop showing a diameter of Ø32mm and dimensions of 78mm length, 37.50mm height, with a 50mm and 72mm measurement for the hoop assembly.

4. LCD Display Description

Annotated screenshot of the LDPOwer C350 display. Labels point to: Clock, USB icon, Bluetooth icon, Battery indicator, Headlight indicator, Speed Loop, Front drive (slave), Rear drive (master), Current Speed, Speed Unit, Single Mileage (TRIP), TRIP distance, Gear (5), ODO distance (Total Mileage).

• Headlight Indication: Indicates when the headlights are on.
• Power icon: Displays the current remaining battery capacity.
• Live Speed: Displays the speed while riding, km/h (kilometers per hour) mph (miles per hour), switchable.
• AVG: Average speed
• MAX: Maximum speed
• TIME: Single ride time
• TRIP: Single mileage
• ODO: Total mileage
• RANG: Cruising range (the cruising range data is displayed in non-0 gear, and the 0 gear or assist gear displays --)
• Cal: Calorie (only when the controller sends calorie data, this item will not be displayed if it is not sent)
• Gear: Displays the current assist gear, 0~3/0~5/0~9 gears are adjustable, of which 0 means no assist in neutral, 1~9 corresponds to assist gear, [assist mode icon] which means assist mode.

5. General Operation and Function Description

Note: "Long press the button>3S" is referred to as "Long press", "Short press the button<0.5S" is referred to as "Short press".

A close-up image of the three control buttons on the LDPOwer C350 display unit. The buttons are labeled 'Power', 'Plus', and 'Minus'.

The display has three buttons: [power button]/model button, [plus button], [minus button].

In the following description, [power button] is replaced with the word "Power", [plus button] is replaced with the word "+", and [minus button] is replaced with the word "-.".

5-1. Power On/Power Off

When the display is power off, long press [power button] to turn the display on. When the display is power on, long press [power button] to turn the display off.

5-2. Assist Gear Switch

Short press [plus button] or [minus button] to switch the assist gear. The lowest gear is Gear1, the highest is Gear9, and Gear0 is neutral without assistance.

5-3. Assist Mode

When the speed is zero, you can long press [minus button] in any gear to enter the assist status. The assist icon will be displayed, and releasing the [minus button] will immediately return to the gear before assisting.

5-4. Headlight Turn On/Off

Turn on: Long press the [plus button] when the light is off; the headlight icon will be displayed and inform the controller to turn on the light.

Turn off: Long press the [plus button] when the light is on; the headlight icon will disappear and inform the controller to turn off the light.

5-5. Parameter Switch

On the main interface, short press the [power button] to cyclically display TRIP (single mileage) / ODO (total mileage) / MAX (maximum speed) / AVG (average speed) / TIME (riding time) / TRIP (single mileage) / RANG (driving range) / CAL (calorie).

5-6. USB Charge

You can charge your phone during the ride by connecting the USB cable to the display USB port.

5-7. Bluetooth

Customizable option to install a Bluetooth module to control the meter via a Bluetooth APP.

6. Function Selection

When the speed is zero, long press the [plus button] & [minus button] simultaneously on the main screen to enter the function selection screen. Short press the [plus button] or [minus button] to cyclically select 'Display Setting', 'Information', and 'Exit'. Short press the [power button] to enter the corresponding secondary screen.

Screenshot of the Function Selection screen, displaying options: 'Display Setting', 'Information', 'Exit'.

Screenshot of the Display Setting screen, listing adjustable parameters: 'Trip Reset', 'Unit', 'Brightness', 'Auto Off', 'Assist Mode', 'Wheel Size', 'Speed Limit', 'Light Sensor', 'Clock', 'Back'.

Screenshot of the Info Screen, showing options: 'Battery Info', 'Display SW', 'Controller SW', 'Error Code', 'Back'.

7. Display Setting

Short press [plus button] or [minus button] in the display setting screen to select 'Trip Reset', 'Unit', 'Brightness', 'Auto Off', 'Assist Mode', 'Wheel Size', 'Speed Limit', 'Light Sensor', 'Clock', and 'Back'.

7-1. Trip Reset

Screenshot of the Trip Reset setting screen.

REMARK: After setting, return to the main screen to take effect.

Enter the "Display Setting" screen, short press [plus button] or [minus button] to select "Trip Reset", short press [power button] to enter the setting screen. Then short press [plus button] or [minus button] to select "NO"/"YES" ("YES" means reset, "NO" means do not reset). Short press the [power button] to save and exit to "TRIP Reset". Select "Back" then "Exit" to exit to the main screen. When "TRIP" is reset, the riding time, average speed, and maximum speed are reset at the same time.

7-2. Imperial and Metric Unit Conversion

Screenshot illustrating Unit selection, showing two buttons: 'Metric' and 'Imperial'.

Enter the "Display Setting" menu, short press [plus button] or [minus button] to select "Unit", short press [power button] to enter the setting screen. Then short press [plus button] or [minus button] to select "Metric"/"Imperial". Short press [power button] to save and exit to "Unit". Select "Back" then "Exit" to exit to the main screen. REMARK: If you select the metric unit, all information on the main screen is in the metric unit, and the imperial unit is the same as above.

7-3. Brightness Setting

Screenshot of the Brightness Setting screen, displaying the current setting as '50%'.

Enter the "Display Setting" menu, short press [plus button] or [minus button] to select "Brightness". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select "100%"/"75%"/"50%"/"30%"/"10%". Short press [power button] to save and exit to "Brightness". Select "Back" then "Exit" to exit to the main screen.

7-4. Auto Power Off Time Setting

Screenshot of the Auto Off time setting screen, showing '5min'.

Enter the "Display Setting" menu, short press [plus button] or [minus button] to select "Auto Off". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select the auto power off time, ranging from 0 to 9. "OFF" (0) means do not auto power off. Short press [power button] to save and exit to "Auto Off". Select "Back" then "Exit" to exit to the main screen.

7-5. Assist Mode Setting

Screenshot of the Assist Mode setting screen, displaying the current setting as '5'.

Enter the "Display Setting" menu, short press [plus button] or [minus button] to select "Assist Mode". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select "3"/"5"/"9". Short press [power button] to save and exit to "Assist Mode". Select "Back" then "Exit" to exit to the main screen.

7-6. Wheel Size Setting

Screenshot of the Wheel Size setting screen, displaying '25inch'.

Enter the Display Setting screen, short press [plus button] or [minus button] to select "Wheel Size". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select the size, ranging from 6 to 34. Short press [power button] to save and exit to "Wheel Size". Select "Back" then "Exit" to exit to the main screen.

7-7. Speed Limit Setting

Screenshot of the Speed Limit setting screen, displaying '26km/h'.

Enter the Display Setting screen, short press [plus button] or [minus button] to select "Speed Limit". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select the speed limit, ranging from 10 to 70. Short press [power button] to save and exit to "Speed Limit". Select "Back" then "Exit" to exit to the main screen.

7-8. Light Sensor Setting

Screenshot of the Light Sensor setting screen, displaying '50%'.

Enter the Display Setting screen, short press [plus button] or [minus button] to select "Light Sensor". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select "100%"/"75%"/"50%"/"30%"/"10%". Short press [power button] to save and exit to "Light Sensor". Select "Back" then "Exit" to exit to the main screen.

Clock Setting

Screenshot of the Clock Setting screen, showing fields for Year, Month, Day, Hour, Minute, Second, with options to 'Save&Back' or 'Back'.

Enter the Display Setting screen, short press [plus button] or [minus button] to select "Clock". Short press [power button] to enter the setting. Then short press [plus button] or [minus button] to select "Year"/"Month"/"Day"/"Hour"/"Minute"/"Second". Short press [power button] to enter the setting for each option. Then short press [plus button] or [minus button] to adjust the value. Short press [power button] to complete the individual setting. Select "Save&Back", short press [power button] to save and exit to "Clock", or select "Back" then "Back" then "Exit" to exit to the main screen.

8. Information

Screenshot of the Battery Info screen, displaying various electrical parameters such as voltage, current, capacity, and percentage.

Screenshot of the Controller SW screen, showing 'Display SW' with a version identifier.

Screenshot of the Error Code screen, listing error codes from E-Code0 to E-Code9 with corresponding values.

Short press the [plus button] or [minus button] in the information screen to select 'Battery Info', 'Display Info', 'Display SW', 'Controller SW', 'Error Code', 'Back'. Short press the [power button] to enter the corresponding secondary screen.

Clear error logs: Press the [power button] & [plus button] & [minus button] simultaneously in this screen; the error logs will be cleared.

9. Error Code Reference Table

Error code values are based on the current configuration controller definition. Represented in hexadecimal.