m5 lcd display in stock

It is a smartLCD. You can not test it by only voltage. You need to install it on your E-Bike and pedal for 3-5 seconds. Then the LCD will show battery level normally.

It is a smartLCD. You can not test it by only voltage. You need to install it on your E-Bike and pedal for 3-5 seconds. Then the LCD will show battery level normally.

Reference the LCD Display Operations table in this manual for instructions on how to perform various operations using these buttons and, when applicable, other components of the bike.

I have found that an off the shelf Nakto M5 display without Aventon firmware works just fine! The display isn"t terminated to the Higo/Julet 5 pin male connector, but I can remove the back cover + wires of the old display and solder those onto the new one, or I can splice on the extension cable I bought.

Turns out the controllers used here are using Kingmeter 618U / J-LCD protocol. I verified this by hooking up the new and broken old display to a logic analyzer and found the protocols to match this library https://github.com/MichaelFabry/Ard...uino_Pedelec_Controller/display_kingmeter.cpp

I messed around with P05 and found out that some of the higher level PAS settings (This display went alphanumeric on me!) just made the bike drive itself forward, way faster than the walk mode!

P06 is normally in inches, but in this instance it maps to the default tire settings available. Follow the order in your Aventon user manual from smallest to largest, number 4 is 24". The 618U protocol has the display state wheel size every packet, I confirmed these map between displays. The kingmeter library above also shows this order.

I"m uncertain if P07 is actually 16, I need to do some real world testing, but this setting doesn"t leave the display and Shengyi doesn"t list this specific model online. However, their similar models all have 16 pole pairs, so I believe this is correct.

P14 makes no difference here! The controller we have internally limits to 22A. The display does not echo this setting back to the controller, I did not see any changes in the packets. The controller also does not report current to the display, this field was always 0. I set this to 1A and noticed no difference.

P20 is usually listed as "Alternate" or "Standby" in product listings for this screen and others with the same style settings where P20 decides protocol. I think this display is a Kingmeter Nokee-U knock-off, so it would make sense to not broadcast the name of the protocol.