Freezes once in a while

[augisbud]

The Arduino freezes once in awhile it only seems to be happening with my hard driving so right now I think it's trying to open the menu because there is no speed check for that but that doesn't always seem to be the case. Anyone else experienced something similar?

[augisbud]

I'm starting to think that the issue is with the library, gonna change it to the Adafruit library and maybe create a separate github for testing purposes 😕

[augisbud]

Try out this
This is the beta branch, it might contain bugs, but worth checking out, it uses a U8G2 library so download it before.

[tibzejoker]

Hi !
I'm running your sketch on my m365, and it crashes every 30s.
I have another arduino on the same 5V source next to the batteries that i'll remove soon.
I've started to think that the arduino pro mini must crash when it's running on like 4V.
So maybe the solution is to put a big capacitor on the power line to avoid this ?
I'll try it soon, but if you do it first, fell free to let us know ;)

[augisbud]

Well I have discovered that it seems like the bus overflows, because everytime i spin the tire in the air from 5km/h to 30km/h(custom firmware), the speedo freezes and sometimes catches back on

[tibzejoker]

Oh, ok..
So maybe the solution may be to add an interruption timer that starts before every serial.read ?
Then you can flush the serial port if it freezes by doing something like that if i remember :
void flushSerial(){
while(Serial.available () > 0){
Serial.read();
}
}

[tibzejoker]

Or, maybe the best solution is to use
Serial.onReceive(stockInATabFunction);
that triggers on every serial event ?
then in the dataFSM(), you can just check if there is something waiting in the tab

[augisbud]

Hmmm, It freezes because it receives too much data so a millis() delay could help it

[augisbud]

But a delay is not a solution, so having something like you mentioned could work better

[augisbud]

brake and throttle value filter seems to help for someone on youtube, any ideas ?

oh and it makes sense, because it's spamming the same values and it overflows

[voodou59]

Hi, thanks for sharing that project. Did you tried with pro mini 3.3v ?

[tibzejoker]

I have no idea, but can you give us the link to that video please ?
i've also seen that some days, instead of freezing, it could work just nicely.. Btw, how have you found out that it is an overflow error ?
Thanks !

[augisbud]

It's kinda an overflow, even the xiaomi mi app freezes if you put the scooter in the air and press the throttle fully

[augisbud]

Hi, thanks for sharing that project. Did you tried with pro mini 3.3v ?

You will destroy it, the rail is 5v, a capacitor or some kind of regulator.

[voodou59]

Not really. It is supposed to accept voltage up to 12VDC.

[augisbud]

Uhmm, heat? the uno is good for 12 volts too, but it's actually made for 5v

[voodou59]

I agree that 12v requires a heatsink but the electric scooter regulator range is 0 to 5.5-6v max

[jordicli]

For me it's freezing in every trip :(

[lukaszlukasz0]

For me it happend one time, i drive with this software over a week (60km).
Maybe it depends of arduino, ther are so many manufactors?

[augisbud]

more like on the scooter I guess

[tibzejoker]

Mine freezes every 1km approximatively..
I dont really know why because when i put the scooter in the air and press the throttle fully nothing more than the "normal" 1km freeze occurs..
I'm trying to add a second "watchdog arduino" to see if i can fix it that way

[tibzejoker]

of course i have deleted the bootup part to skip the animation ^^.
I'll tell you if it can kind of fix it

[augisbud]

Check if the percentage drops after sometime, because sometimes only the speedo freezes

[tibzejoker]

no it doesnt unfortunately.. everything stops even the percentage.. (infinite power i gess ?? 👍 )

[augisbud]

hmm, for me only the speedometer crashes

[lukaszlukasz0]

and for me :-)

All scooter hang up, and stop driving, all led are off, and the display was on and suspended showed the speed.

[tibzejoker]

hey guys i've figured out that when the port crashes, the arduino is still alive and working !
https://photos.app.goo.gl/jfD18F17mBE4PSTo9
On this video you can see that the screen is frozen and the arduino is still working (i've made the led on port 13 blink for debug)

[lukaszlukasz0]

I see something like this sometimes (long time ago), when i drive with phone on bluetooth, my speed on mihome app freezes.
I am not sure if this is not a coincidence, but often helped by tapping on a platform or passing through bumps or holes on the way 😃

[tibzejoker]

I've finally fixed it with my second watchdog arduino.
Actually, when the arduino freezes due to a serial overflow, the 13th pin starts to blink pretty fast, and you cant reset it via the reset pin. You have to physically turn it off and on.
That's why i'm now doing that.
I'll release my fix tomorrow i think, it only costs the price of a second arduino nano.

[tibzejoker]

It's not the best solution but at least.. it works ^^
https://github.com/tibzejoker/m365_dashboard

[carlosmellado]

Hi all,
I’m waiting for a new oled screen to test it out since I broke mine :p but...
There is a command for serial that checks for an overflow, and another for flush the serial, so... what if you put this piece of code at the very begging of the loop() function?

if(XIAOMI_PORT.overflow()) {
XIAOMI_PORT.flush();
}

Sorry if there are errors but I’m writing from the phone.
Will be working also to find a software based solution! :)

[afonsos]

This freezes only display or also scooter?
Lately randomly Im experiencing both freezing and I have to reboot scooter.

[duts33]

Hi. It freezes only in Big spidometer mode. Maybe you want to delete or fix it? And also can you add remaining mileage?

[dimitrisdaniil]

How can i test it before soldering the cables to the scooter? Should it report bus data is missing?
I am asking because i tried to power it and the screen remains black... Any help would be appreciated

[dimitrisdaniil]

Is this project abandoned?

[afonsos]

it should power up showing bus error,maybe you have a bad connection somewhere or bad oled

[dimitrisdaniil]

I fixed it. I removed the lines refering to spi screen libraries

[dimitrisdaniil]

Does it still hangs without the external watchdog?

[carlosmellado]

I fixed it. I removed the lines refering to spi screen libraries

Did you fixed? or not?
If you did it, can you make a pull request or explain what did you changed on the code please?

Thanks!

[dimitrisdaniil]

Sorry for the delayed precense but i am abroad and i have limited time.
I have fixed the black screen issue that some peaple including me are facing (i believe it was related to the i2c vs spi libraries selection-at least in my case-since it is working now)
replace these lines from original "defines.h" in order to use it with i2c screen
(sorry i am a noob- it is the original code corrected where the compiler gave me an error and now the screen works fine.)

#include "WatchDog.h"

//#define DISPLAY_I2C

//#define US_Version

//ifdef DISPLAY_I2C
#include "SSD1306AsciiWire.h"

#include "fonts/m365.h"
#if Language == RU
#include "fonts/System5x7ru.h"
#else
#include "fonts/System5x7mod.h"
#endif
#include "fonts/stdNumb.h"
#include "fonts/bigNumb.h"

#include <EEPROM.h>

#include "language.h"
#include "messages.h"

MessagesClass Message;

const uint16_t LONG_PRESS = 2000;
uint8_t warnBatteryPercent = 5;

bool autoBig = true;
uint8_t bigMode = 0;
bool bigWarn = true;

bool Settings = false;
bool ShowBattInfo = false;
bool M365Settings = false;

uint8_t menuPos = 0;
uint8_t sMenuPos = 0;

bool cfgCruise = false;
bool cfgTailight = false;
uint8_t cfgKERS = 0;

volatile uint8_t oldBrakeVal = -1;
volatile uint8_t oldThrottleVal = -1;
volatile bool btnPressed = false;
bool bAlarm = false;

uint32_t timer = 0;

//ifdef DISPLAY_I2C
SSD1306AsciiWire display;

bool WheelSize = true; //whell 8,5"

uint8_t WDTcounts = 0;
void(* resetFunc) (void) = 0;

(i have made minor corrections so that my screen would work but the code is the original and not mine :)))

[dimitrisdaniil]

Has anybody found a solution for the freezing, without second arduino as watchdog?

[zazzimazzi]

Hi can you converting this project SSD1306AsciiWire library to adafruitssd1306.h library or u8glib or u8g2lib

[dimitrisdaniil]

To be honest personally i do not have the knowledge to do it... It requires a lot of reading...and i do not have the time, this reriod...
But why you want to do this? It works pretty well this way

[dimitrisdaniil]

Is this project abandoned?

[GivvHub]

i thikk: yes. not happy

[alexandrugai]

anyone tried this project on a d1mini?

[pawelmakowski26]

Witajcie.
Wyeliminowałem zawieszanie się dodając rezystor 120ohm na linii data pomiędzy płytka m365 a Arduino.
Do tej pory zawieszała się co chwilę , oraz silnik czasami jakby się wyłączał . Dzisiaj rano przejechałem 5 km bez żadnego błędu.

[pawelmakowski26]

Na razie nie zawiesza sie

[duts33]

Witajcie.
Wyeliminowałem zawieszanie się dodając rezystor 120ohm na linii data pomiędzy płytka m365 a Arduino.
Do tej pory zawieszała się co chwilę , oraz silnik czasami jakby się wyłączał . Dzisiaj rano przejechałem 5 km bez żadnego błędu.

Have you also had the screen freeze on the speed reading?

[pawelmakowski26]

today I drove about 15km and the meter worked perfectly. never hung.

[duts33]

today I drove about 15km and the meter worked perfectly. never hung.

thanks, I will try this method too.

[pawelmakowski26]

Wczoraj działało idealnie. Dzisiaj znowu przerywa.

[VVerlog]

Hi together, is there any solution available till now?

[duts33]

There is no concrete solution. I replaced the resistors with other values, as advised in similar projects, and the Arduino still freezes. It can run for a few days without freezes, and then still hang.

[VVerlog]

Has anyone a look at the data signal with an oszi? Maybe the signal is not good enough. But I think there is an code bug too, because freezing should not happen if the data could not be read. Maybe something with interrupt. Now I will start to have a look on the code.

[hojnikb]

Any solutions for this till now?

[38293312]

I can’t turn on the headlights with this item meter. I wonder if everyone has the same problem?

[Dubstaaa]

Glad to release the v 0.B version (B means Bruno). A improved software watchdog is in place. Never freezed in some months of heavy use, at high speed and neither on hard braking. Made the necessary corrections to made the code work on pro's version (now can display current speed, or real time current value) cause these models, unlike the classic m365, have another ble protocol. No more crashing when tyre is spinning.
Works fine on almost every 5V Arduino board, even all those who integrate a Serial TTL that could interferes with bus, Half Duplex is now reached by SoftwareSerial().
Tested on Xiaomi Scooter Essential, Xiaomi PRO 2 and Mi Scooter 3. Also works in combination with CamiBLE 075 v 10.
You can find the project on my Github home.

[duts33]

Glad to release the v 0.B version (B means Bruno). A improved software watchdog is in place. Never freezed in some months of heavy use, at high speed and neither on hard braking. Made the necessary corrections to made the code work on pro's version (now can display current speed, or real time current value) cause these models, unlike the classic m365, have another ble protocol. No more crashing when tyre is spinning. Works fine on almost every 5V Arduino board, even all those who integrate a Serial TTL that could interferes with bus, Half Duplex is now reached by SoftwareSerial(). Tested on Xiaomi Scooter Essential, Xiaomi PRO 2 and Mi Scooter 3. Also works in combination with CamiBLE 075 v 10. You can find the project on my Github home.

Could you give a link?

[Dubstaaa]

Im hard working to make it cheaper, easier and more affordable... even more useful than commercial version of “M365 dash”. To achieve a good result I need some more days to refine my project.
Next week two versions will be released :
Ninebot compatible;
Xiaomi compatible;

[Dubstaaa]

Im glad to share with you my project, fully compatible with multiple scooter versions.
Neat dash, test release by Bruno. Available on https://github.com/Dubstaaa/NeatDash-