Huiye L02 Smart Display Instrument
Product Introduction
Name
Smart display meters.
Product model
L02
Product appearance
Product Specifications
General parameters | ||
size | Length*width*height | 86.8*50.5*16(mm) |
Screen size | 2.4’’ | |
Fit the handlebar | 22.2/25.4(mm) | |
screen | type | Light-emitting diodes |
color | Red/Yellow/Green/White | |
connector | type | M5 waterproof connector |
length | 22cm | |
Core data | Operating voltage | 12V-60V |
Operating temperature | -20°C-+70°C | |
Waterproof rating | IP67 | |
Total weight | undetermined | |
agreement | UART/CAN | |
Other features | Bluetooth | 5.2+BLE (optional) 2402-2480MHZ |
oscillator | 26Mhz | |
authentication | ROHS/CE/FCC/ISO13849 | Support customization |
Dimension
The L02 gauge has 3 buttons. Includes Power key, plus key +, minus key -. As shown in the figure below:
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 power key.
Description of the main interface
- Headlight Indicator: The headlight indicator graphic will illuminate when the headlight is turned on
- Cruising: When you enter a cruise, the icon will light up
- Brake icon: When you pinch the brake, the icon will light up
- 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.
- Bluetooth indicator: After the APP is successfully connected to the instrument, the symbol will light up.
- 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.
- Real-time speed: Displays the current speed at which the e-bike is traveling
- Voltage Display: Displays the current voltage of the e-bike
- Gear Indicator: Displays the current power assist gear of the e-bike
- One-way mileage: The number of miles for a single trip
- Total Mileage: The total number of miles traveled by the vehicle
- 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
- 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:
Boost mode
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:
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:
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:
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:
Character Comparison Table
UART MenuDescription | BAFANG | Li-ion NO.2 | KM5S |
P1 | unit | unit | unit |
P2 | gears | voltage | voltage |
P3 | Wheel diameter | Zero start | gears |
P4 | speed limit | Wheel diameter | Wheel diameter |
P5 | Power on password | speed limit | Motor magnets |
P6 | Automatic shutdown time | Power on password | speed limit |
P7 | cruise | Automatic shutdown time | Power on password |
P8 | The total mileage is reset to zero | Electric brake strength | Automatic shutdown time |
P9 | Drive mode | cruise | |
PA | Boost the starting intensity | The total mileage is reset to zero | |
Pb | cruise | ||
Pc | The total mileage is reset to zero | ||
bt | Bluetooth unlocking | Bluetooth unlocking | Bluetooth unlocking |
this | Bluetooth unlock distance rating | Bluetooth unlock distance rating | Bluetooth unlock distance rating |
for example | Bluetooth version number | Bluetooth version number | Bluetooth version number |
dF | Factory reset | Factory reset | Factory reset |
VR | Software version number | Software version number | Software version number |
The following takes the lithium battery No. 2 protocol as an example to show the setting menu interface:
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 number | Status data | Error code | meaning |
1 | 0X01 | Not shown | Normal state |
2 | 0X03 | Not shown | Braked |
3 | 0X04 | Error 04 | The signal level of the controller power-on detection turn bar is greater than the start-up level |
4 | 0X05 | Error 05 | The knob signal is shorted to the knob GND, the knob signal is shorted to the knob +5V, and the knob GND is broken |
5 | 0X06 | Not shown | The battery voltage is lower than the controller’s low-voltage protection threshold |
6 | 0X07 | Error 07 | The battery voltage is higher than the controller’s low-voltage protection threshold |
7 | 0X08 | Error 08 | The motor Hall signal is abnormal |
8 | 0X09 | Error 09 | The phase wire of the motor is short-circuited or open-circuited |
9 | 0X10 | Error 10 | The temperature of the motor reaches the protection threshold |
10 | 0X11 | Error 11 | The motor temperature sensor is abnormal |
11 | 0X12 | Error 12 | The current sensor is abnormal |
12 | 0X13 | Not shown | The temperature sensor inside the battery is abnormal |
13 | 0X14 | Error 14 | The controller temperature reaches the protection threshold |
14 | 0X15 | Error 15 | The temperature sensor in the controller is faulty |
15 | 0X21 | Error 21 | The internal & external speed sensor of the battery is abnormal |
16 | 0X22 | Not displayed (displayed when reading battery information –) | The controller is unable to receive the battery pack BMS data |
17 | 0X23 | Not shown | The headlights are abnormal |
18 | 0X24 | Not shown | The headlight sensor is abnormal |
19 | 0X25 | Error 25 | The torque signal of the torque sensor is abnormal |
20 | 0X26 | Error 26 | The torque sensor has an abnormal speed signal |
21 | 0X30 | Error 30 | The meter does not receive controller data |
Lithium battery No. 2 fault code | |||
serial number | Fault information | Error code | remark |
1 | Hall failure | 8 | |
2 | Handlebar failure | 5 | |
3 | Controller failure | 16 | Octagon Protocol does not have this failure (custom). |
4 | Under voltage protection status | 6 | |
5 | The motor is out of phase | 9 | |
6 | Faulty brake handlebar | 2 | Octagon Protocol does not have this failure (custom). |
7 | The controller communication is faulty | 29 | Unable to receive data from the meter (Octagon Protocol does not have this fault). |
8 | Instrument communication failure | 30 | Unable to receive data from the controller |
KM5S fault code | |||
serial number | Fault information | Error code | remark |
1 | Undervoltage protection status | 6 | |
2 | The current is abnormal | 12 | |
3 | Handlebar abnormality | 5 | |
4 | The motor is out of phase | 9 | |
5 | Motor Hall abnormality | 8 | |
6 | Abnormal braking | 17 | Octagon Protocol does not have this fault (custom) |
7 | Instrument communication failure | 30 | Unable to receive data from the controller |
Version history
version | Reviser | Date of revision | Modifications | remark |
V1.0 | zhangqi | 2024.04.30 | first edition | |
V1.1 | MO, HAOQI | 2024.05.07 | Added factory reset menu description; Added Bluetooth lock unlock function description; Added version number naming convention description; | |
Note:
- 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.
- 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:
- This device may not cause harmful interference, and
- 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 |