An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.

Covers electric scooter models whether shared or for consumers.
By Cologne
#57634
Good day,
let's revive this topic. I am following all the posts now for weeks but just managed to get an account here now. As someone else said before I also do believe there are two versions of batteries.

I have a lot of these . ES-400B (TIER) and EB-100 (Bolt) use the same batteries. I managed to open two. They are both connected to the CAN_L and CAN_H pins on the BMS, as well as on Load_DEC and Chg_Com. But there are also unused pins for GPS_VCC, GPS_GND, RX and TX.

It is easily to get confused because these green 5 Pin connector use different color cables and I also do not get any signals over CANduino. But maybe I am missing a step, I have never worked with CAN-Bus before
By incognitodeveloper
#57639
MikeSnow wrote:
Fri Mar 24, 2023 10:35 am
I have tried to send CAN messages to the battery but the interface is not working. I measured the CAN levels and its not correct voltage. Either CAN interface is broken on my battery or something else is wrong. How did you come to the conclusion its CAN_L and CAN_H on those pins? I tried all different speeds, 125, 250, 500 and 1000kbit/s and tried switching CAN_L and CAN_H without success.

If I measure the pins and press the button to get charge status I get strange signals on the pins, not data but just repeating voltage spikes with constant period and duty cycle, not even close to how CAN should look.
i talked about that with brightgloaming after post and chast before he left so
it was a mistake that brightgloaming said that you can send just everything on repeat
IOT DOSENT control the battery the motor controller does (as far as chast told me and he was most advanced on everything )
chast said that " motor controller calculates something and sends to the battery "
and i tested all can codes sent on repeat to the battery and yea as expected dosent works

potentially easiest woud be to sniff comunication between battery and motor controller and just play on repeat(for everone who wants use batteries not only inside stock tier ) but it could also not work if motor controller is "calculating" something
By pico1979
#57646
Chast wrote:
Mon Jan 30, 2023 2:28 pm
brightgloaming wrote:
Sat Jan 28, 2023 8:23 pm
I believe I have found all of the CAN bus messages needed to unlock the ES400A scooter (display + battery + motor controller). I will open source all of the findings on GitHub when i make sure that they work well. I will post an update here when it's finished (should take less than a month).
In the meantime, be careful of the user Chast - he is a scam and doesn't send you any source code when he receives the money.
Good luck.
As for your statement cheater, you got a hex file for arduino nano. Everyone who paid got it. You wanted the source code for arduino to show off your rework on github. If in a moment I will post screenshots from Discord where you blackmailed me with sharing the source code.
So scammer you claim to have developed the codes? You've analyzed what the arduino nano is sending and that's it. you are a cheater
Could You recompile it for Nano with Atmega16 or ESP32 or ESP8266 (WEMOS D1 Mini)?
User avatar
By 00RC00
#57656
brightgloaming wrote:
Sun Feb 05, 2023 1:28 pm
Chast said something about "stealing someone else's work" but honey, we're discussing hacking a rental-only scooter model. 100% of any work here is stolen.
As much as I value the work of independent creators, Chast was not only gatekeeping all of his research behind a paywall, he was also sending everyone who paid a mostly useless hex file *for 10 EUR*.
Save this code block with a .hex extension and upload it to an arduino nano with a MCP2515 CAN module connected (standard SPI pinout, INT pin to D2)
Code: Select all
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The github that I will open source in some time is not related to Chast's code - I don't even have an arduino to upload this to. I've researched the logic analyzer dumps that were sent here and found the correct messages. For now you can try and use this hex file, now that it's free.

Chast, darling, die mad about it.
tak kończą frajerzy - Jan G, 2023
Hello, first of all, many thanks to everyone who is very busy here. I've been following this for a long time and still have a few questions. :D

Are the codes intended for the Model C? (So ES400C)

Because I always see 20E on the display and when I step on the gas it says 18E. The lights and blinkers work but it won't drive. I saved the codes in a text file and changed the suffix to .hex and then uploaded it to the Arduino Nano using "Freematics Arduino Builder".

But I have to say that I don't have an original. But he has an ATmega328 controller:
https://uk.aliexpress.com/item/10050014 ... pt=glo2deu


Here are a few instructions on how to remove the battery:
Simply open the compartment and unplug the cable that is attached to the small black box. Then detach the cable and hang it on a 9V battery. (Black –, Red +)
Image
By Cologne
#57658
Hello, first of all, many thanks to everyone who is very busy here. I've been following this for a long time and still have a few questions. :D

Are the codes intended for the Model C? (So ES400C)
Nice Tier Scooter there ;P ES400C is the same as ES400B. Infact it is a ES400B just [C]ustom made for a company. ES400C scooters are not legally obtainable due to contracts with Okai GmbH and customers

So all the codes just be the same, the specs are all the same. But there is likely a little difference in the mainboard. TIER mainboard should be a ZK105M. Here an interesting manual: https://fccid.io/YQD-ZK105M/User-Manual ... al-4484515
By Peter Bird
#57660
Cologne wrote:
Sun Mar 26, 2023 3:01 am
Good day,
let's revive this topic. I am following all the posts now for weeks but just managed to get an account here now. As someone else said before I also do believe there are two versions of batteries.

I have a lot of these . ES-400B (TIER) and EB-100 (Bolt) use the same batteries. I managed to open two. They are both connected to the CAN_L and CAN_H pins on the BMS, as well as on Load_DEC and Chg_Com. But there are also unused pins for GPS_VCC, GPS_GND, RX and TX.

It is easily to get confused because these green 5 Pin connector use different color cables and I also do not get any signals over CANduino. But maybe I am missing a step, I have never worked with CAN-Bus before
Only 3 of the 4 lines are forwarded, Can L, Can H and a 3rd. The third line is connected to Bat+ when the battery is plugged into the scooter.
By Ilikescooters
#57670
Cologne wrote:
Sun Apr 02, 2023 8:08 pm
Hello, first of all, many thanks to everyone who is very busy here. I've been following this for a long time and still have a few questions. :D

Are the codes intended for the Model C? (So ES400C)
Nice Tier Scooter there ;P ES400C is the same as ES400B. Infact it is a ES400B just [C]ustom made for a company. ES400C scooters are not legally obtainable due to contracts with Okai GmbH and customers

So all the codes just be the same, the specs are all the same. But there is likely a little difference in the mainboard. TIER mainboard should be a ZK105M. Here an interesting manual: https://fccid.io/YQD-ZK105M/User-Manual ... al-4484515
You can buy auctions. Buying an es400b new is not the smartest idea...
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