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Huiye L02 Smart Display Instrument

Huiye-L02-Smart-Display-Instrument-product-image

Product Introduction

Name
Smart display meters.

Product model
L02

Product appearance

Huiye-L02-Smart-Display-Instrument-image (1)

Product Specifications

General parameters
sizeLength*width*height86.8*50.5*16(mm)
Screen size2.4’’
Fit the handlebar22.2/25.4(mm)
 

 

screen

typeLight-emitting diodes
colorRed/Yellow/Green/White
connectortypeM5 waterproof connector
length22cm
Core dataOperating voltage12V-60V
Operating temperature-20°C-+70°C
Waterproof ratingIP67
Total weightundetermined
agreementUART/CAN
Other featuresBluetooth5.2+BLE (optional)

2402-2480MHZ

oscillator26Mhz
authenticationROHS/CE/FCC/ISO13849Support customization

Dimension

Huiye-L02-Smart-Display-Instrument-image (2)

Button Definitions

The L02 gauge has 3 buttons. Includes Power key, plus key +, minus key -. As shown in the figure below:Huiye-L02-Smart-Display-Instrument-image (3)

After long press the “power on and off button “, the instrument will work on the power on, and in the power on state, long press the “power on and off button ” to power off the system.
The “+” and “-” keys are used to switch menus in the settings, and the main interface is short pressed to switch gears; Long press “+” on the main interface to switch on and off the headlights, and long press “-” to enter the boost mode; To enter the settings mode, double-click the powerHuiye-L02-Smart-Display-Instrument-image (15) key.

Description of the main interface

Huiye-L02-Smart-Display-Instrument-image (4)

  1. Headlight Indicator: The headlight indicator graphic will illuminate when the headlight is turned on
  2. Cruising: When you enter a cruise, the icon will light up
  3. Brake icon: When you pinch the brake, the icon will light up
  4. Maintenance tip: Electronic systems have some ability to self-diagnose and report limited faults. The failure will be reported as an error code displayed on the screen.
  5. Bluetooth indicator: After the APP is successfully connected to the instrument, the symbol will light up.
  6. Battery Level Graph: The battery level graph is a graphical representation of the amount of power remaining in the battery. Once the battery is charged, more bars will appear in the graph. When the battery is depleted, fewer bars appear.
  7. Real-time speed: Displays the current speed at which the e-bike is traveling
  8. Voltage Display: Displays the current voltage of the e-bike
  9. Gear Indicator: Displays the current power assist gear of the e-bike
  10. One-way mileage: The number of miles for a single trip
  11. Total Mileage: The total number of miles traveled by the vehicle
  12. Password lock: The instrument password function is turned on (password default 2020), the password is prompted to enter after restarting the instrument, and the password lock icon will light up
  13. Average speed: The average speed at which the vehicle is traveling

Headlight switch

  • Turn on the light: Press and hold the “+” button when the light is off, the headlight logo on the screen will brighten, and the controller will be notified to turn on the light.
  • Turn off the lights: Press and hold the “+” button when the lights are on, the screen headlight logo will not disappear, but will be dimmed, and the controller will be notified to turn off the lights at the same time. As shown below:

Huiye-L02-Smart-Display-Instrument-image (4)

Boost mode Huiye-L02-Smart-Display-Instrument-image (6)

Press and hold the “-” button when the car body is stationary, and the dynamic booster logo will be displayed, indicating that it will enter the booster, release the “-” button, and exit the booster mode. In booster mode, the booster logo is displayed dynamically, and the vehicle speed is less than 6km/h, and the booster state stops when the button “-” is released. As shown below:
Huiye-L02-Smart-Display-Instrument-image (7)

The main interface display is switched
When you boot on, the main interface will display ODO by default, and click the power button to display ODO-TRIP-AVG-voltage (V) in turn. As shown below: Huiye-L02-Smart-Display-Instrument-image (8)

Power display
The battery level is displayed in four segments, when the battery is fully charged, the five-bar light is on, and the battery flashes when the battery is under-voltage, indicating that it needs to be charged immediately. As shown below: Huiye-L02-Smart-Display-Instrument-image (9) Huiye-L02-Smart-Display-Instrument-image (10)

Fault display
When the electronic control system of the electric vehicle fails, the instrument will automatically display an error code, and the definition of the detailed error code is shown in Schedule 1. As shown below: Huiye-L02-Smart-Display-Instrument-image (11)

Settings menu

Character Comparison Table

Huiye-L02-Smart-Display-Instrument-image (12)

UART MenuDescriptionBAFANGLi-ion NO.2KM5S
P1unitunitunit
P2gearsvoltagevoltage
P3Wheel diameterZero startgears
P4speed limitWheel diameterWheel diameter
P5Power on passwordspeed limitMotor magnets
 P6Automatic shutdown time Power on password speed limit
 P7cruiseAutomatic shutdown time Power on password
 P8The total mileage is reset to zeroElectric brake strengthAutomatic shutdown time
P9Drive modecruise
PA Boost the starting intensityThe total mileage is reset to zero
Pbcruise 
 Pc The total mileage is reset to zero 
 btBluetooth unlockingBluetooth unlockingBluetooth

unlocking

 

this

Bluetooth unlock distance ratingBluetooth unlock distance ratingBluetooth unlock distance rating
for exampleBluetooth version numberBluetooth version numberBluetooth version number
dFFactory resetFactory resetFactory reset
VRSoftware version numberSoftware version numberSoftware version number

The following takes the lithium battery No. 2 protocol as an example to show the setting menu interface:Huiye-L02-Smart-Display-Instrument-image (13) Huiye-L02-Smart-Display-Instrument-image (14)

Setup Details

  • Unit settings
    Double-click the power button to enter the settings, “plus and minus buttons” to switch the selection unit menu, short press the power to enter the unit menu, you can switch 00, 01. 00 is metric and 01 is imperial. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Voltage setting
    Double-click the power button to enter the setting, “plus or minus key” to switch to select the voltage setting menu, short press the power to enter the voltage menu, the setting options are 24V, 36V, 48V, 60V adjustable. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Zero-start setting
    Double-click the power button to enter the settings, “plus and minus keys” to switch to select the zero start menu, short press the power to enter the zero start menu, you can choose Y or N (Y is to turn on zero start, N is to turn off zero start). Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Wheel diameter setting
    Double-click the power button to enter the setting, “plus and minus button” to switch to select the wheel diameter menu, short press the power supply to enter the wheel diameter menu, the wheel diameter setting range is 8-30inch. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface. As shown in the figure below
  • Speed limit settings
    Double-press the power button to enter the setting, “plus or minus button” to switch to select the speed limit menu, short press the power to enter the speed limit menu, the speed limit setting range is 10-99. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Boot passcode settings
    Double-click the power button to enter the settings, “plus and minus keys” to switch to select the boot password menu, short press the power to enter the boot password menu, and the setting options are Y (open password) or N (turn off password). Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Auto-shutdown settings
    Double-click the power button to enter the settings, “plus and minus keys” switch to select the auto-shutdown menu, short press the power to enter the auto-shutdown menu, the setting options are 0-10, 30, 60 adjustable, when set to 0, it means that it will not automatically shut down. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • E-ABS Strength Setting (Electric Brake)
    Double-click the power button to enter the settings, “plus and minus keys” to switch to select the E-ABS menu, short press the power to enter the E-ABS menu, and the setting options are ABS-N, ABS-L, ABS-S. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Drive mode settings
    Double-press the power button to enter the settings, “plus or minus buttons” to switch to select the drive mode menu, short press the power to enter the drive mode menu, and the setting options are E-P, E, P. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Initiates the intensity setting
    Double-press the power button to enter the setting, “plus or minus key” to switch to select the starting strength setting menu, short press the power to enter the starting strength setting menu, the setting options are 0-5. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Cruise menu
    Double-click the power button to enter the settings, “plus and minus buttons” to switch to select the cruise menu, short press the power to enter the cruise menu, and the setting options are CM-Y/CM-N. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • The total mileage is reset to zero
    Double-click the power button to enter the settings, “plus and minus buttons” to switch to select the total mileage clearance menu, short press the power to enter, Y represents the need to clear, N represents not clear, short press the power to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Motor magnets
    Double-click the power button to enter the setting, “plus or minus key” to switch to select the motor magnet menu, short press the power to enter, the number of magnets can be selected in the range: 1~15 grains (or 1~63 grains, different protocol ranges are different) to adjust to the required value, short press the power to select the setting and return to the previous menu, and then double-click the power button to return to the main interface.
  • Bluetooth lock switch menu
    Double-click the power button to enter the settings, “plus and minus keys” to switch to select the Bluetooth lock switch menu, short press the power to enter the Bluetooth lock switch menu, and the setting options are BT-Y/BT-N. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
    Note: The Bluetooth lock unlock function needs to turn on the password function and turn on the Bluetooth lock
  • Bluetooth distance level menu
    Double-click the power button to enter the settings, “plus and minus buttons” to switch to select the Bluetooth distance level menu, short press the power to enter the Bluetooth distance level menu, and the options can be set from 1 to 5. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Bluetooth version number menu
    Double-click the power button to enter the settings, “plus and minus keys” to switch to select the Bluetooth version number menu, short press the power to enter the Bluetooth version number menu, you can view the current Bluetooth version number. Short press the power button to select the settings and return to the previous menu, and then
    double-click the power button to return to the main interface.
  • Factory reset
    Double-click the power button to enter the settings, “plus or minus key” to switch to select the factory reset menu, short press the power to enter the menu, the configurable options are Y/N, Y means factory reset (all parameters will be restored to the factory state), N means no factory reset. Short press the power to select Y and set, the meter will automatically restart and return to the main interface. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Meter version number menu
    Double-click the power button to enter the setting, “plus or minus key” to switch to select the instrument version number menu, short press the power to enter the instrument version number menu, you can view the current version number of the instrument. Short press the power button to select the settings and return to the previous menu, and then double-click the power button to return to the main interface.
  • Version naming rules: customer code + agreement + number. For example, the version number: A0L-04, the code A0 means Huiye; L represents the lithium battery agreement (in addition, 5 represents the 5S agreement, and B represents the Octagon agreement); 04 indicates version 04

Fault codes

BF Fault Code
serial numberStatus dataError codemeaning
10X01Not shownNormal state
20X03Not shownBraked
30X04Error 04The signal level of the controller power-on detection turn bar is greater than the start-up level
40X05Error 05The knob signal is shorted to the knob GND, the knob signal is shorted to the knob +5V, and the knob GND is broken
50X06Not shownThe battery voltage is lower than the controller’s low-voltage protection threshold
60X07Error 07The battery voltage is higher than the controller’s low-voltage protection threshold
70X08Error 08The motor Hall signal is abnormal
80X09Error 09The phase wire of the motor is short-circuited or open-circuited
90X10Error 10The temperature of the motor reaches the protection threshold
100X11Error 11The motor temperature sensor is abnormal
110X12Error 12The current sensor is abnormal
120X13Not shownThe temperature sensor inside the battery is abnormal
130X14Error 14The controller temperature reaches the protection threshold
140X15Error 15The temperature sensor in the controller is faulty
150X21Error 21The internal & external speed sensor of the battery is abnormal
160X22Not     displayed (displayed when     reading battery information –)The controller is unable to receive the battery pack BMS data
170X23Not shownThe headlights are abnormal
180X24Not shownThe headlight sensor is abnormal
190X25Error 25The torque signal of the torque sensor is abnormal
200X26Error 26The torque sensor has an abnormal speed signal
210X30Error 30The meter does not receive controller data
Lithium battery No. 2 fault code
serial numberFault informationError coderemark
1Hall failure8
2Handlebar failure5
3Controller failure16Octagon Protocol does not have this

failure (custom).

4Under voltage protection status6
5The  motor  is

out of phase

9
6Faulty  brake

handlebar

2Octagon Protocol does not have this

failure (custom).

7The         controller communication is faulty29Unable to receive data from the meter (Octagon Protocol does not have this fault).
8Instrument communication failure30Unable to receive data from the controller
KM5S fault code
serial

number

Fault

information

Error

code

remark
1Undervoltage

protection status

6
2The current is

abnormal

12
3Handlebar

abnormality

 

5

4The  motor  is

out of phase

 

9

5Motor           Hall abnormality8
6Abnormal braking17Octagon Protocol does not have this fault (custom)
7Instrument communication failure30Unable to receive data from the controller

Version history

versionReviserDate        of

revision

Modificationsremark
V1.0zhangqi2024.04.30first edition
V1.1MO, HAOQI2024.05.07Added     factory     reset    menu description;

Added Bluetooth lock unlock function description;

Added version number naming convention description;

Note:

  1. Due to the upgrade of the company’s products, the display content of the product you get may be different from that in the manual, but it will not affect your normal use.
  2. Do not plug and unplug with electricity, plugging and unplugging with live power may damage the electronic control accessories.

FCC STATMENT

Labeling requirements.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

Changes or modification warning.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
OR/The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. Device has also been tested against this SAR limit.

Information to the user
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

RF warning for Portable device
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

FAQ

  • Q: Can I use the device in portable exposure conditions?
    • A: Yes, the device has been evaluated to meet general RF exposure requirements and can be used in portable exposure conditions without restriction.
  • Q: How do I reset the device to factory settings?
    • A: To reset to factory settings, navigate to the factory reset menu as described in the manual and follow the instructions provided.
  • Q: How do I switch on/off the headlights?
    • A: Long press the + button on the main interface to switch on/off the headlights.

Documents / Resources

Huiye L02 Smart Display Instrument [pdf] Instruction Manual
L02, L02 Smart Display Instrument, Smart Display Instrument, Display Instrument

References

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