TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

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stancecoke   100 kW

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Re: firmware v0.6.8 issue

Post by stancecoke » Mar 23 2020 12:30pm

casainho wrote:
Mar 22 2020 2:13am
But I am now thinking that the new compiler version, that optimizes a lot the motor controller firmware, causes this issue - at least since I remember, I had this problem only after the last release...
Hm, an user in the german forum reported a grilled Kunteng-controller a few days ago. He used the latest Linux-SDCC version, too. The recent OSEC-firmware code has not changed since several month.
So this might be the right trace...

The link in the Kunteng Wiki leads directly to the SDCC 4.0.0 Windows version, released on Jan 30th, 2020, and I heard no problems from Windows users so far, so this might be safe?!

I'm still using the windows version 3.8.1 without problems.

regards
stancecoke

jeff.page.rides   10 W

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Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by jeff.page.rides » Mar 23 2020 12:57pm

r0mko wrote:
Mar 23 2020 9:50am
casainho wrote:
Mar 23 2020 9:47am
You should wait for a new firmware version or try an older one, and, use a fuse in series with the battery wire to try avoid the same to happen (I would say a car fuse of 5 amps).
No problem, I can build whatever firmware and flash it right away. I need my bike back as soon as possible, so I have to decide:
switch to 36V setup with the old motor, controller and battery
or
put a 36V controller with a 48V motor and run in from the 48V battery
Just a suggestion but, Buba uses a 36 Volt motor with a 52 Volt battery set at 36 Volt for the motor. That was his favorite. If you have the hardware give it a try the only downside I've read is that it may or may not be possible that the 36 Volt motor would put out more heat. I've been wanting to try this combination because he claims you get more torque above 50 RPM this way. I don't have an extra 36 Volt motor and don't have the funds to buy one so I haven't been able to test it yet.

nassal   10 µW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by nassal » Mar 24 2020 10:28am

When I started my conversation, I didn’t know the different between W , V, A and current. Thank you guys for doing this, I have learned a lot. I have managed to covert my bike (TSDZ2 with 850c/ 52v 17.5a battery) with lot’s of difficulty, mainly by searching google and ending up finding my answers in this forum. as a dyslexic i found it incredibly hard to find info in any forum. I have a few questions please.
1- how can I donate to Casainho? Sow something in forum but can’t find it again.
2- how can I access the displays sitting? (double-clicking on/off switch doesn’t work)
3- on the 850C finger control, when I press + it decrease the assist level and increases by pressing -, is that normal? (It is wrong way round to me).
4- I have installed the temperature sensor, where can I see the motor temperature in 850c Display?
I fallowed eco ebike recommendation of v0.6.2 version for 850C and v0.51.0 for TSDZ2 Motor. Thanks
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casainho   10 GW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by casainho » Mar 24 2020 10:43am

nassal wrote:
Mar 24 2020 10:28am
When I started my conversation, I didn’t know the different between W , V, A and current. Thank you guys for doing this, I have learned a lot. I have managed to covert my bike (TSDZ2 with 850c/ 52v 17.5a battery) with lot’s of difficulty, mainly by searching google and ending up finding my answers in this forum. as a dyslexic i found it incredibly hard to find info in any forum. I have a few questions please.
1- how can I donate to Casainho? Sow something in forum but can’t find it again.
2- how can I access the displays sitting? (double-clicking on/off switch doesn’t work)
3- on the 850C finger control, when I press + it decrease the assist level and increases by pressing -, is that normal? (It is wrong way round to me).
4- I have installed the temperature sensor, where can I see the motor temperature in 850c Display?
I fallowed eco ebike recommendation of v0.6.2 version for 850C and v0.51.0 for TSDZ2 Motor. Thanks
You can donate to me to my PayPal, see my signature. I don't have anymore more blue gears in stock, I am being damaging them in recent developments so I will need to buy more of these gears and other material to keep developing.

You did well to follow the advice of Eco Bike recommendations!! I hope to release soon a new firmware version and I will update the wiki configurations page.

To know how to navigate, you need to read the wiki page about configurations and the page specific for your firmware version.

3 - that is a feature, maybe you had the buttons on the right side of the handle bar. See configurations for change that feature.
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

r0mko   1 W

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Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by r0mko » Mar 24 2020 2:55pm

jeff.page.rides wrote:
Mar 23 2020 12:57pm
Just a suggestion but, Buba uses a 36 Volt motor with a 52 Volt battery set at 36 Volt for the motor. That was his favorite. If you have the hardware give it a try the only downside I've read is that it may or may not be possible that the 36 Volt motor would put out more heat. I've been wanting to try this combination because he claims you get more torque above 50 RPM this way. I don't have an extra 36 Volt motor and don't have the funds to buy one so I haven't been able to test it yet.
Wow, 36V motor in 48V system is SCARY fast. It can keep up with cadence 90 and even higher, but apparently max RPM (in the firmware is now the limitation. It pulls all the way up to max RPM and then fails to spin faster, which feels like a brick wall. What do you think, @casainho, is it possible to push RPM even further for volt-modding? 30 points of PWM per sine wave seems a bit conservative.

jeff.page.rides   10 W

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Joined: Aug 13 2019 10:16am

Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by jeff.page.rides » Mar 24 2020 3:34pm

r0mko wrote:
Mar 24 2020 2:55pm
jeff.page.rides wrote:
Mar 23 2020 12:57pm
Just a suggestion but, Buba uses a 36 Volt motor with a 52 Volt battery set at 36 Volt for the motor. That was his favorite. If you have the hardware give it a try the only downside I've read is that it may or may not be possible that the 36 Volt motor would put out more heat. I've been wanting to try this combination because he claims you get more torque above 50 RPM this way. I don't have an extra 36 Volt motor and don't have the funds to buy one so I haven't been able to test it yet.
Wow, 36V motor in 48V system is SCARY fast. It can keep up with cadence 90 and even higher, but apparently max RPM (in the firmware is now the limitation. It pulls all the way up to max RPM and then fails to spin faster, which feels like a brick wall. What do you think, @casainho, is it possible to push RPM even further for volt-modding? 30 points of PWM per sine wave seems a bit conservative.
I am still on an older version and this is the settings I would use.
your version may be different, but what you want is experimental 36 Volt or it's also called high cadence 36 Volt.
Here is the setting for your motor Volts and cadence.
If you change it to (3) you can pedal a much high cadence.
Menu(0) submenu (3) level (3)

(0) 48 V motor.
(1) 36 V motor.
(2) Experimental 48 V motor, high cadence mode.
(3) Experimental 36 V motor, high cadence mode.

jeff.page.rides   10 W

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Posts: 96
Joined: Aug 13 2019 10:16am

Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by jeff.page.rides » Mar 24 2020 3:41pm

jeff.page.rides wrote:
Mar 24 2020 3:34pm
r0mko wrote:
Mar 24 2020 2:55pm
jeff.page.rides wrote:
Mar 23 2020 12:57pm
Just a suggestion but, Buba uses a 36 Volt motor with a 52 Volt battery set at 36 Volt for the motor. That was his favorite. If you have the hardware give it a try the only downside I've read is that it may or may not be possible that the 36 Volt motor would put out more heat. I've been wanting to try this combination because he claims you get more torque above 50 RPM this way. I don't have an extra 36 Volt motor and don't have the funds to buy one so I haven't been able to test it yet.
Wow, 36V motor in 48V system is SCARY fast. It can keep up with cadence 90 and even higher, but apparently max RPM (in the firmware is now the limitation. It pulls all the way up to max RPM and then fails to spin faster, which feels like a brick wall. What do you think, @casainho, is it possible to push RPM even further for volt-modding? 30 points of PWM per sine wave seems a bit conservative.
I am still on an older version and this is the settings I would use.
your version may be different, but what you want is experimental 36 Volt or it's also called high cadence 36 Volt.
Here is the setting for my version Volts and Cadence.
If you change it to (3) you can pedal a much high cadence.
Menu(0) submenu (3) level (3)

(0) 48 V motor.
(1) 36 V motor.
(2) Experimental 48 V motor, high cadence mode.
(3) Experimental 36 V motor, high cadence mode.

jeff.page.rides   10 W

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Posts: 96
Joined: Aug 13 2019 10:16am

Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by jeff.page.rides » Mar 24 2020 3:42pm

jeff.page.rides wrote:
Mar 24 2020 3:41pm
jeff.page.rides wrote:
Mar 24 2020 3:34pm
r0mko wrote:
Mar 24 2020 2:55pm
jeff.page.rides wrote:
Mar 23 2020 12:57pm
Just a suggestion but, Buba uses a 36 Volt motor with a 52 Volt battery set at 36 Volt for the motor. That was his favorite. If you have the hardware give it a try the only downside I've read is that it may or may not be possible that the 36 Volt motor would put out more heat. I've been wanting to try this combination because he claims you get more torque above 50 RPM this way. I don't have an extra 36 Volt motor and don't have the funds to buy one so I haven't been able to test it yet.
Wow, 36V motor in 48V system is SCARY fast. It can keep up with cadence 90 and even higher, but apparently max RPM (in the firmware is now the limitation. It pulls all the way up to max RPM and then fails to spin faster, which feels like a brick wall. What do you think, @casainho, is it possible to push RPM even further for volt-modding? 30 points of PWM per sine wave seems a bit conservative.
I am still on an older version and this is the settings I would use.
Your version may be different, but what you want is experimental 36 Volt or it's also called high cadence 36 Volt.
Here is the setting for my version Volts and Cadence.
If you change it to (3) you can pedal a much high cadence.
Menu(0) submenu (3) level (3)

(0) 48 V motor.
(1) 36 V motor.
(2) Experimental 48 V motor, high cadence mode.
(3) Experimental 36 V motor, high cadence mode.
You also need to go into the battery setup and put it in what your battery is.

r0mko   1 W

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Posts: 56
Joined: Jan 20 2017 8:06pm

Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by r0mko » Mar 24 2020 4:27pm

jeff.page.rides wrote:
Mar 24 2020 3:41pm
I am still on an older version and this is the settings I would use.
Your version may be different, but what you want is experimental 36 Volt or it's also called high cadence 36 Volt.
Here is the setting for my version Volts and Cadence.
If you change it to (3) you can pedal a much high cadence.
Menu(0) submenu (3) level (3)

(0) 48 V motor.
(1) 36 V motor.
(2) Experimental 48 V motor, high cadence mode.
(3) Experimental 36 V motor, high cadence mode.
You also need to go into the battery setup and put it in what your battery is.
Motor type was the first setting I tried to change. Seems that it has no effect, the motor produces the same sound pitch at redline at whatever setting.
What does the battery type setting change? It is now 13 cells and 48V type.

vshitikov   10 mW

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Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by vshitikov » Mar 24 2020 5:08pm

r0mko wrote:
Mar 24 2020 2:55pm
jeff.page.rides wrote:
Mar 23 2020 12:57pm
Just a suggestion but, Buba uses a 36 Volt motor with a 52 Volt battery set at 36 Volt for the motor. That was his favorite. If you have the hardware give it a try the only downside I've read is that it may or may not be possible that the 36 Volt motor would put out more heat. I've been wanting to try this combination because he claims you get more torque above 50 RPM this way. I don't have an extra 36 Volt motor and don't have the funds to buy one so I haven't been able to test it yet.
Wow, 36V motor in 48V system is SCARY fast. It can keep up with cadence 90 and even higher, but apparently max RPM (in the firmware is now the limitation. It pulls all the way up to max RPM and then fails to spin faster, which feels like a brick wall. What do you think, @casainho, is it possible to push RPM even further for volt-modding? 30 points of PWM per sine wave seems a bit conservative.
You guys should buy yourself a motorcycle haha :)

hetm4n   10 mW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by hetm4n » Mar 24 2020 9:02pm

I uploaded sw102 0.6.9 and 0.55 to tsdz2 a few days ago. I drove 50km and everything works. a few posts earlier someone wrote that the driver burned uploading 6.8 or 6.9. Was it a problem during the upload process or is I at risk of damaging the driver while driving?

skestans   100 W

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Location: Luxembourg

Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by skestans » Mar 25 2020 2:10am

hetm4n wrote:
Mar 24 2020 9:02pm
I uploaded sw102 0.6.9 and 0.55 to tsdz2 a few days ago. I drove 50km and everything works. a few posts earlier someone wrote that the driver burned uploading 6.8 or 6.9. Was it a problem during the upload process or is I at risk of damaging the driver while driving?
These versions have been pulled because they're not safe to use apparently. I think the consensus is to stay on 0.54 + 0.6.5 for now.

nassal   10 µW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by nassal » Mar 25 2020 2:43am

Found configuration menu, I think it is to do with programming. I just what to know how to access 850 setting!!. Double-clicking on/off doesn’t bring uk the display settings.

nassal   10 µW

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Posts: 5
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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by nassal » Mar 25 2020 2:51am

casainho wrote:
Mar 24 2020 10:43am
nassal wrote:
Mar 24 2020 10:28am
When I started my conversation, I didn’t know the different between W , V, A and current. Thank you guys for doing this, I have learned a lot. I have managed to covert my bike (TSDZ2 with 850c/ 52v 17.5a battery) with lot’s of difficulty, mainly by searching google and ending up finding my answers in this forum. as a dyslexic i found it incredibly hard to find info in any forum. I have a few questions please.
1- how can I donate to Casainho? Sow something in forum but can’t find it again.
2- how can I access the displays sitting? (double-clicking on/off switch doesn’t work)
3- on the 850C finger control, when I press + it decrease the assist level and increases by pressing -, is that normal? (It is wrong way round to me).
4- I have installed the temperature sensor, where can I see the motor temperature in 850c Display?
I fallowed eco ebike recommendation of v0.6.2 version for 850C and v0.51.0 for TSDZ2 Motor. Thanks
You can donate to me to my PayPal, see my signature. I don't have anymore more blue gears in stock, I am being damaging them in recent developments so I will need to buy more of these gears and other material to keep developing.

You did well to follow the advice of Eco Bike recommendations!! I hope to release soon a new firmware version and I will update the wiki configurations page.

To know how to navigate, you need to read the wiki page about configurations and the page specific for your firmware version.

3 - that is a feature, maybe you had the buttons on the right side of the handle bar. See configurations for change that feature.
Found configuration menu, I think it is to do with programming. I just what to know how to access 850 setting!!. Double-clicking on/off doesn’t bring up the display settings.

ezrider1199   1 W

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by ezrider1199 » Mar 25 2020 7:41am

nassal wrote:
Mar 25 2020 2:51am
Found configuration menu, I think it is to do with programming. I just what to know how to access 850 setting!!. Double-clicking on/off doesn’t bring up the display settings.

on the newest firmware its hold UP & DOWN & PWR but make sure to press UP & DOWN first and then immediately PWR.

on the prior firmwares its quick press PWR, release, long press PWR.

jeff.page.rides   10 W

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Posts: 96
Joined: Aug 13 2019 10:16am

Re: TSDZ2 mid drive and 850C and SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by jeff.page.rides » Mar 25 2020 7:45am

r0mko wrote:
Mar 24 2020 4:27pm
jeff.page.rides wrote:
Mar 24 2020 3:41pm
I am still on an older version and this is the settings I would use.
Your version may be different, but what you want is experimental 36 Volt or it's also called high cadence 36 Volt.
Here is the setting for my version Volts and Cadence.
If you change it to (3) you can pedal a much high cadence.
Menu(0) submenu (3) level (3)

(0) 48 V motor.
(1) 36 V motor.
(2) Experimental 48 V motor, high cadence mode.
(3) Experimental 36 V motor, high cadence mode.
You also need to go into the battery setup and put it in what your battery is.
Motor type was the first setting I tried to change. Seems that it has no effect, the motor produces the same sound pitch at redline at whatever setting.
What does the battery type setting change? It is now 13 cells and 48V type.
To be safe and work correctly you need to set your battery to exactly what it is. And if you're using a 36V motor it needs to be set at 36V standard or 36V high cadence. If your using a 48V motor it needs to be set at 48V standard

casainho   10 GW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by casainho » Mar 25 2020 9:06am

New firmware release: 860C_850C_SW102_v0.7.0

I did a new firmware release and this time I took a lot of care to make the motor initialization robust. I tested many times (850C, 860C and SW102) and it seems to work correctly but I think only the time will tell.

Get it here: https://github.com/OpenSource-EBike-fir ... 102_v0.7.0

---

This version was developed for the TSDZ2 motor controller firmware v0.56.0 (TSDZ2-v0.56.0.hex) -- see bellow attached files.

WARNING: as the previous firmware version burn the motor controller and/or make unwanted motor rotating at max speed and power, please be very careful when installing this version by keep the back wheel on the air, have brake sensors installed and the possibility with easy access to quick cut the battery power like removing the battery connector to the TSDZ2.

After installing this firmware, follow the next page to learn how to configure and navigate: https://github.com/OpenSource-EBike-fir ... on-display

Changelog:
- (hope) corrected the fatal issue that could burn the motor controller and/or make unwanted motor rotating at max speed and power
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

ezrider1199   1 W

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Posts: 64
Joined: Jul 02 2019 5:42pm

Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by ezrider1199 » Mar 25 2020 9:34am

Thanks. Were you able to replicate the max power issue? like when exiting the config menu after a change it would deliver max power.

im just curious exactly which symptoms were tested/addressed.
casainho wrote:
Mar 25 2020 9:06am
I did a new firmware release and this time I took a lot of care to make the motor initialization robust. I tested many times (850C, 860C and SW102) and it seems to work correctly but I think only the time will tell.

casainho   10 GW

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Joined: Feb 14 2011 2:43pm

Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by casainho » Mar 25 2020 9:45am

ezrider1199 wrote:
Mar 25 2020 9:34am
Thanks. Were you able to replicate the max power issue? like when exiting the config menu after a change it would deliver max power.

im just curious exactly which symptoms were tested/addressed.
casainho wrote:
Mar 25 2020 9:06am
I did a new firmware release and this time I took a lot of care to make the motor initialization robust. I tested many times (850C, 860C and SW102) and it seems to work correctly but I think only the time will tell.
I used the SDCC old version. I re wrote again the motor initialization, that happens at startup and when leaving the configurations.

1. At startup, the TX and RX lines are verified to see if they work as expected.
2. Then, motor firmware version is sent to display to see if is the expected one.
3. Then, configurations are sent to motor controller and a delay of 2 seconds happens (on display we see the message motor init during the initialization)

When leaving the configurations, only 3. is executed.

After motor initialization, missing communication for more then 0.8 seconds, will disable the motor until next restart.
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

ezrider1199   1 W

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Posts: 64
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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by ezrider1199 » Mar 25 2020 9:50am

Were you able to actually experience/replicate the max power issue on your bike?

casainho   10 GW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by casainho » Mar 25 2020 6:43pm

In social distancing mode because COVID, I did today alone with my son, 45kms running latest
firmware 860C_850C_SW102_v0.7.0 -- two different bicycles, one with 860C display and other with 850C display. I trust enough on this version that I did install it on the bicycle of my son:

Image

Image

Image
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.


Maverix   1 µW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by Maverix » Mar 26 2020 2:04am

Hi guys,

why do I always have to set the actual time when battery was changed?
Isn't the time being stored in the 850C display?

Thanks

nassal   10 µW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by nassal » Mar 26 2020 6:02am

ezrider1199 wrote:
Mar 25 2020 7:41am
nassal wrote:
Mar 25 2020 2:51am
Found configuration menu, I think it is to do with programming. I just what to know how to access 850 setting!!. Double-clicking on/off doesn’t bring up the display settings.

on the newest firmware its hold UP & DOWN & PWR but make sure to press UP & DOWN first and then immediately PWR.

on the prior firmwares its quick press PWR, release, long press PWR.
Thanks, I can change display front settings now, can’t change time/km to mile and can’t get to display configuration. 850c v0.6.2 and v0.51.0 hex.
have installed temperature sensor but on the display, T sensor is on 0 all the time.
Up and down is wrong way round, not Physically though. up button decreases the assist level. Any idea?

casainho   10 GW

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Re: TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

Post by casainho » Mar 26 2020 6:09am

Maverix wrote:
Mar 26 2020 2:04am
Hi guys,

why do I always have to set the actual time when battery was changed?
Isn't the time being stored in the 850C display?
I just wrote about this on the wiki FAQ: https://github.com/OpenSource-EBike-fir ... osing_time
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of the Flexible OpenSource firmware for EBikes: TSDZ2 mid drive motor, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.

If you like my work, please consider making a donation. I am being using the donations to buy needed resources for my developments. My paypal: casainho AT gmail.com.

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