Copy files to root directory of microSD card (filesystem FAT32), insert into On-board computer (contacts on top) and run the update process.


Do not downgrade firmware that was installed by the manufacturer! You may get a brick


Each device has its own firmware and is updated separately from different menus. It does not matter in what order you update the firmware of the devices. If you have older firmware, you can install the latest firmware at once, without having to install the firmware one by one.
1. Description of the On-Board Computer update menu.
2. Description of the Controller update menu.
3. Description of the uLight update menu.

To check the current firmware version, go to the Device Information menu, each device has a separate menu.
1. Information about the firmware version of the On-Board Computer.
2. Information about the firmware version of the Controller.
3. Information about the firmware version of the uLight.

The list of actual firmware to be downloaded:

18 October 2021

First need to update all devices but display. Because menu protocol is new and old devices will not be visible in menu. After update finished hold left button few seconds to exit updated device menu. If button does not work you may need to reset power supply or replug CAN cable in display.
After everything updated - update display.
Make a controller reset (load defaults) after update.
I recommend to run motor detect again on controllers.
Detection of throttle/brake connected to display should be done in display menu.

Display v0.71B Download

Show change log

Click to hide ⇱

Menu redesigned.
All display settings moved to separate menu.
Added port input state in port settings.
Added port functions: disable backlight, lock screen.
Added separate hotkeys while charging.
Added option to use hotkeys with short click.
Added throttle/brake settings which are connected to display.
Added global odometer setting.
Global stats reset will not reset odometer now.
Added parameters import/export.
Added icons on main screen (brake, brake limit, turtle mode, motor/controller fault, battery fault).
With new controllers update speed is 6 times faster now.
Logger speed should work faster too.
Added text scroll in menu.
Logo updated.
Added more informative messages for resets with password request.
Added parameters that could be requested from display on CAN bus.
=== v0.71
Fixed some parameter editing.
Updated import/export.
Odometer now can be imported, value is not decimal now.
Fixed button blinking while typing password.
Fixed charge screen, button blinking fixed.
Fixed info-lines names.
Fixed header for password message.


Controller v0.8.2 Download

Show change log

Click to hide ⇱

Added glitchy USB to controller (needs a USB cable connected to PWM port).
Completely new LEVCAN parameters protocol with more possibilities.
Added trip statistics menu to controller:
-Wh regen/used/total.
-Ah regen/used/total.
-Estimated motor efficiency realtime and average.
-Calculated motor torque (on shaft).
Temperature measurement now calculates t-sensor resistance.
Improved kV detection.
Fixed 'bug' with long brake response on slow current change speed for acceleration limit.
Defaults for all ports now OFF.
Added brake button % (percentage of brake phase current for button-brake).
Added brake on released throttle (brake phase current).
Motor inductance and resistance detection for MTPA.
MTPA logic (works good only with IPM motors).
Fixed FOC FW to be triggered at stop when braking.
Added more control CAN commands.
Added more parameters that could be requested from controller on CAN bus.
Added more logger parameters.
Added hall filter settings to debug stuttering.
Added prefix selection for controller name.
=== v0.8.2
Added log header option.
Added translation for some messages (RU).
Added error messages for throttle/brake detection.


uLight v0.6.1 Download

Show change log

Click to hide ⇱

New LEVCAN parameters protocol.
Fixed PWM IO settings, now they do work.
Added temperature sensor thresholds, they work as virtual button for functions.
Added ability to send button inputs to CAN bus.
Main program source code published on GitHub:
https://github.com/Nucular-tech/uLight


31 August 2020

Use configuration export before update, reset defaults after update and import configuration.
Display v0.60B Download

Show change log

Click to hide ⇱

Fixed throttle drop.
Small menu fixes.
LEVCAN updated.
Button setup simplified, by default all set to CAN mode.
Added exFAT support (but display still can be updated only from FAT32).
Added charge screen.
Added fast statistics type selection.
Added wider event window.
Mph stats fixed.


Controller v0.7.18

Show change log

Click to hide ⇱

Experimental logger added.
Fixed many charger glitches, however still have few.
Added soft start to charger and more safe phase detect.
Completely reworked field weakening, now should not have any hard braking after release.
Added minimum speed reference for speed PID.
Added RC PWM control on P1 port (throttle/brake).
Added more logger parameters.
Few important FOC control fixes, DC current should be calculated better under field weakening.
Fixed one weird ultra-rare bug in square mode.
LEVCAN operates on queues now, log time 2x faster when display updated.
Decreased DCi Ki default from 500 to 200.
Slightly decreased FW start point.
Added full debug info export.
Added logger mode selection and tuned logger start.
Removed first line from log for easy datazap upload.
Throttle / brake curves added (8 point configuration) with presets.
PAS extra scale added for additional modes.
Soft acceleration for cruise added, more shutdown triggers.
Cruise logic updated - phase current limited by selected mode, not throttle position.
Minimum cruise speed - limits cruise activation.
Cruise increment/decrement - control cruise speed with buttons ( port = CR+/CR-)
Cruise restore - recovery last saved cruise speed with button, activated only above min cruise speed. (port = CRr)
Power limit added to modes and battery configuration. 0 = power limit disabled.
Small menu fixes.
CAN inputs increased to 16.
Parameters export / import fixes.
12V shutdown fix.


18 March 2020

Display v0.59B Download
HOTFIX for display speed sensor

11 March 2020

Display v0.58B Download

Show change log

Click to hide ⇱

Fixed 0V throttle issue.
Fixed charge statistics reset.
Added kmh/mph switch.
Added more parameters to info. lines on main screen.
Added hotkey mode for compatibility with controller speed functions.
Fixed contrast setting.
Added driving range, calculated from WH usage.
A lot of tiny fixes.


Controller v0.7.12

Show change log

Click to hide ⇱

Torque PAS fixes
Fixed configuration import for advanced modes
Added configuration selector from 1 to 9
Import will show first line of configuration, you can put a comment here
Fixed N mode
Fixed motor wiggle at charger mode
Added more debug information


21 Nov 2019

HOTFIX, fixed NaN error for analog inputs.
Controller v0.7.9 Download

20 Nov 2019

Export configuration (or make screenshots), after controller update do “Erase data storage” and reboot. Configuration will not be imported fully, some values will need to enter manually.
Display v0.57B Download

Show change log

Click to hide ⇱

CAN buttons setup
Inverted inputs setup
Statistics reworked
Added filters for analog inputs


Controller v0.7.8 Download

Show change log

Click to hide ⇱

Big menu update
Control logic completely reworked for future compatibility with BMS
New default values for PIDs
DC-DC low voltage difference charge fixed
Inverted brake input added
Specific setup for 3 positional speed switch added (can work now as 1-2-3)
Button/switch select for usual speed select input
Save CRC calculation fixed
New speed mode - neutral
Speed increment and decrement added
Added t-sensor NTC 10k B:3380
Reboot command added
Fixed field weakening over 126%
Fixed VBUS measuring, now it is at PWM frequency, significantly improved overvoltage protection
Added median VBUS filter
Added averaging of N-X ADC samples filter for throttle and brake
Fixed brake glitches
Current measuring fixes for better measuring on 6F board
When enable button configured controller will not turn-on anymore when power applied
Autodetect improved, more informative, short-circuit detect added and timeout fixed
Added lock-at-turn-on, will lock throttle untill password on-screen is entered
Voltage on phases detect added, will lock controls
UVLO added
Added “Advanced modes” menu with more specific options per mode
Personal throttle protection lock for CAN source or local
Motor temperature limit for charger (DC-DC)