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

Electric Motors and Controllers
jeff.page.rides   100 W

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

Post by jeff.page.rides » Oct 17 2020 1:32pm

Mr.Flibble wrote:
Oct 13 2020 11:31am
jeff.page.rides wrote:
Sep 27 2020 7:34pm
TSDZ2 Fluid Cooling

I’ve been working with this all summer. With several different leaks, different pumps, different tubing, different fluid routing, different fluids, and other difficulties. I finally have a fluid made to fill-up brushless Motors and it is working the way I wanted to from the start with no leaks. I can ride at 700 - 850 Watts all day long and the motor never gets more than 10-20 degrees warmer than the outside air. With all the same steps, but with only fluid in the left side of the case, and no external addons will keep the motor at 30 to 50 degrees warmer than the outside air at 700-850 watts. So that means you can ride at high watts at 100 degrees outside and note worry about overheating. I use a led temp display attached to the bottom of the 860C. It has 2 probes and both temps show, one I leave out in the air on the front of the bike the other one is in the oil in the motor. This also allows you to use a throttle and still have a temperature sensor. It’s cooler, quieter and it’s smoother, but unfortunately like everything I had to learn it all the hard way.

When the riding season is over in about 60 days I will be doing a step by step how-to, with directions and pictures so those that want to tackle this should be able to do it without all the mistakes I had to go through. I’ve attached a couple of photos, so you can see what I’ve done. I also added a new 42 tooth chainring from https://www.eco-ebike.com/collections/d ... lid-e-bike That works great and costs less than the other brand.

I’m trying to decide if I want to go through the effort to offer a kit with all the parts and fluid needed for both types, internal only and external cooling. There was a lot of trial and error finding the right fittings, the right type of hose, the right fluid the right pump, and everything else. To get all the right parts I had to go through several different suppliers, no one-stop-shop here. It’s a lot of work, but If I decide to do this they will be offered through,
www.electrifybike.com and possibly www.eco-ebike.com
Loving your work there :)
It looks like the inside of a gaming PC, maybe you should add some coloured dye to the liquid ? :)
The fittings are for a gaming PC, but the hose for a PC goes hard and starts to leak in a very short time with this fluid. So I am using silicon hose, and it needs silicon adheseve on each end to keep it from leaking. And it does have green die in the fluid.

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

Post by mctubster » Oct 17 2020 6:19pm

asje wrote:
Oct 16 2020 8:59am
Hi Guys, After having driven 2500 km with a 48V TSDZ2 since May 2020 (without issues :) ) I've decided to give the OpenSource firmware a try. I'm currently already happy with the standard software, but am looking foreward to use the OS firmware.

Bought the 860C and build the DIY bootloader box "viewtopic.php?f=30&t=93818&start=3900"
I've set up the to bootloader box to give off 30Volt and connected it to the display but the display will not power on.
Any idea's what might be the problem?

I've measured the all the output pins on the bafang connectors and all the wiring seems fine. I do notice that the CP2102 module gets hot and my computer sometimes gives an error message that the bootloader box is requiring to much power throught the USB port....

PS: Below a pic of the bike i've build.
48V TSDZ2, 17AH battery, Rohloff 14 speed hub, Chainglider & Magura HS33 rim brakes.
IMG_6130.JPG
Mine didn't work either. I just use the battery to power the screen now when flashing. See photo
Attachments
sphone_20201018_101802 (Large).jpg
sphone_20201018_101802 (Large).jpg (201.4 KiB) Viewed 1212 times

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

Post by asje » Oct 23 2020 4:07am

Thanx! I gave it a try. Connected the display directly to the 48v battery and it powered on. Seems the booster doesnt work.

old set up:
IMG_6457.JPG
IMG_6457.JPG (115.55 KiB) Viewed 1059 times
new set up. directly connected to the battery
IMG_6458.JPG
IMG_6458.JPG (113.91 KiB) Viewed 1059 times

Zeggi   100 µW

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

Post by Zeggi » Nov 02 2020 10:51am

Started new thread instead and can't find a delete post function.
Last edited by Zeggi on Nov 03 2020 6:08am, edited 2 times in total.

Zeggi   100 µW

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

Post by Zeggi » Nov 02 2020 11:29am

asje wrote:
Oct 23 2020 4:07am
Thanx! I gave it a try. Connected the display directly to the 48v battery and it powered on. Seems the booster doesnt work.

old set up:IMG_6457.JPG

new set up. directly connected to the batteryIMG_6458.JPG
I would suggest hooking up a multimeter and measure the voltage from the buck converter and raise it to the limits you need. Mine seemed dead but once I measured it was at only 5v and there is a small screw on top of the adjuster, just screw it and measure again. Mine is at 28v and worked booting up and flash.

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

Post by michih. » Nov 03 2020 2:07pm

Is someone already working on the new controller? Unfortunately, you can't get the old one anymore.

Mfg Michael

James Broadhurst   100 W

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

Post by James Broadhurst » Nov 03 2020 2:32pm

Many thanks to all who contributed to getting the lights to work on v1.1.0

That means I’ve got two 850C displays which can now be used at night!

ebikelad   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 ebikelad » Nov 04 2020 11:40am

Hey guys,

Is there any way to provide different assist levels on each pedal? I'm working on a bike to be used by a person with reduced strength on one side.

Thanks!

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

Post by casainho » Nov 04 2020 12:01pm

ebikelad wrote:
Nov 04 2020 11:40am
Hey guys,

Is there any way to provide different assist levels on each pedal? I'm working on a bike to be used by a person with reduced strength on one side.
Yes there is!! Use the torque sensor calibration to achieve what you are looking for.

I would suggest for your first do the torque sensor calibration as described on the wiki and save the spreadsheet with the values and the curves. Then, next step would be to apply a multiplication factor for the curve of the pedal you are looking...

Please post here results later as also some pictures of the ebike!!
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of OpenSource knowledge and technology for ebikes: Wireless Ebike boar ANT+ and Bluetooth, 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 to help my developments: paypal.me/jorgecasa

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

Post by ebikelad » Nov 04 2020 1:21pm

casainho wrote:
Nov 04 2020 12:01pm
ebikelad wrote:
Nov 04 2020 11:40am
Hey guys,

Is there any way to provide different assist levels on each pedal? I'm working on a bike to be used by a person with reduced strength on one side.
Yes there is!! Use the torque sensor calibration to achieve what you are looking for.

I would suggest for your first do the torque sensor calibration as described on the wiki and save the spreadsheet with the values and the curves. Then, next step would be to apply a multiplication factor for the curve of the pedal you are looking...

Please post here results later as also some pictures of the ebike!!
Great! I'll let you know how I get on.

James Broadhurst   100 W

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

Post by James Broadhurst » Nov 06 2020 6:49am

mallesepp wrote:
Oct 09 2020 2:57am
Swannking wrote:
Oct 08 2020 1:04pm
I updated the firmware to v1.1.0. I noticed on the top of the menu is “trip memories”. When I click on that, the 860c display freezes up with an error code and the buttons became non responsive. I had to reboot it by turning it off using the battery power switch. Other than that, I need to take it out for a test run after work. I noticed I also erased all my previous settings including the torque sensor calibration. Was there something I could do to save those info when I upload the motor firmware?
I also installed 1.1.0. So far everything is ok! The response at the start is definitely better. I could not determine the freezing in the menu "Trip memories"! I will keep testing!
Ditto with the 850C display. And agree with you about start response.

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

Post by Atomykatt » Nov 09 2020 9:33am

Hi Guys,

Been lurking the forums on and off for the past few months and first of all I have to say that I really admire all the work that's been put into this project.

Currently I've put a couple of hundred km on the motor and thought I'd have the Open Source Firmware up an running by now. Unfortunately I can't seem to get it loaded on the display. It's an 860C btw.

Setup:
- 860C from AliExpress (shipped from Germany)
- Power from a 48V Li-Ion 13S3P
- Dell XPS 15 running latest version of Windows 10

Things I've tried or checked:

- Correct COM port number
- Inverting RX and TX
- DC transformer as Power supply
- Different laptop
- Different USB Programmer
- All buttons for the display - all working properly
- Ran the Bootloader flashing software both with and without administrative privileges
- Countless number of restarts before and after uninstalling/reinstalling drivers from different sources
- Modifying nearly all the settings on the 860C
- Resetting the 860C to defaults
- Checked output voltage of both battery and DC transformer
- Checked continuity on RX and TX wires leading to the green plug
- Pressing the power button in order to begin flashing with screen both on and off
- Pressing/Long Pressing each button or combination of two buttons for firmware upload to start.

No other searches were of use

I've seem to have hit a dead end. Any ideas or help would be appreciated.

Also, is there a way to just hook up the 860C without using the Open Source Firmware, just to test that it's actually working?

Thanks,
A.

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

Post by Swannking » Nov 09 2020 9:54am

Atomykatt wrote:
Nov 09 2020 9:33am
Hi Guys,

Been lurking the forums on and off for the past few months and first of all I have to say that I really admire all the work that's been put into this project.

Currently I've put a couple of hundred km on the motor and thought I'd have the Open Source Firmware up an running by now. Unfortunately I can't seem to get it loaded on the display. It's an 860C btw.

Setup:
- 860C from AliExpress (shipped from Germany)
- Power from a 48V Li-Ion 13S3P
- Dell XPS 15 running latest version of Windows 10

Things I've tried or checked:

- Correct COM port number
- Inverting RX and TX
- DC transformer as Power supply
- Different laptop
- Different USB Programmer
- All buttons for the display - all working properly
- Ran the Bootloader flashing software both with and without administrative privileges
- Countless number of restarts before and after uninstalling/reinstalling drivers from different sources
- Modifying nearly all the settings on the 860C
- Resetting the 860C to defaults
- Checked output voltage of both battery and DC transformer
- Checked continuity on RX and TX wires leading to the green plug
- Pressing the power button in order to begin flashing with screen both on and off
- Pressing/Long Pressing each button or combination of two buttons for firmware upload to start.

No other searches were of use

I've seem to have hit a dead end. Any ideas or help would be appreciated.

Also, is there a way to just hook up the 860C without using the Open Source Firmware, just to test that it's actually working?

Thanks,
A.
So the 860C display is brand new? Are u able to get it to turn on at all connecting to your current display cable? Which boot loader cable are u using? I have the 860c and used the boot loader cable from eco-ebike.com and didn’t have any issues. I had flashed the display multiple times with different firmware.

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

Post by Atomykatt » Nov 09 2020 10:30am

The display was bought new.

The "bootloader box" is DIY - actually just the CP2102 USB-TTL board as i'm getting power from the battery. I've tried two different boards with the same effect. After I add VAT, Customs and shipping, the cable from eco-ebike doesn't really make sense.

The display turns on, the buttons work when connected to the battery and i'm able to modify settings/do a factory reset.

A.

L.E. Found a booster board bought a couple of years ago around the house and managed to use that to load the firmware. It seems all I needed was the common GND.

Thanks, @Swannking for your quick reply and help :thumb:

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

Post by Rothar1 » Nov 19 2020 8:47am

Hi everybody. I'm running v1.1.0 and 860c display.Have done about 100km and was working fine. Love it. Thanks to all for your work.

Couple of days ago started reading 0 watts motor power and 0amps motor current even though it seemed to be functioning as normal. It had been particularly wet so I suspected water ingress and opened up to check. Bone dry.No obvious sign of anything nasty on visual inspection.Back together now and problem persists.

Any ideas????

Thanks.

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

Post by casainho » Nov 19 2020 8:51am

Rothar1 wrote:
Nov 19 2020 8:47am
Hi everybody. I'm running v1.1.0 and 860c display.Have done about 100km and was working fine. Love it. Thanks to all for your work.

Couple of days ago started reading 0 watts motor power and 0amps motor current even though it seemed to be functioning as normal. It had been particularly wet so I suspected water ingress and opened up to check. Bone dry.No obvious sign of anything nasty on visual inspection.Back together now and problem persists.

Any ideas????

Thanks.
Very strange. At least it keeps working.

The currents and power are measured by the motor controller and sent to display.

Try for instance to limit the motor current or power and see if has effect, even if they are shown as 0.
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of OpenSource knowledge and technology for ebikes: Wireless Ebike boar ANT+ and Bluetooth, 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 to help my developments: paypal.me/jorgecasa

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

Post by Rothar1 » Nov 19 2020 9:05am

casainho wrote:
Nov 19 2020 8:51am

Very strange. At least it keeps working.

The currents and power are measured by the motor controller and sent to display.

Try for instance to limit the motor current or power and see if has effect, even if they are shown as 0.
Geez. That was quick. Thanks Casainho . No time for further testing today. I'll do some experimenting tomorrow and report.
It's a brand new controller but I also have a spare controller so will be able to swap out if needed.I'm suspecting controller.

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

Post by CatfishMan » Nov 19 2020 9:46am

Swannking wrote:
Oct 14 2020 4:50pm
I updated my motor to v1.1.0 with a 860c display. I did a few test run. Today, I took it for for 30 mil ride. The route has some good climb (14%). The startup power seems to have improved. At the end of the trip, I noticed the trip distance was not correct. I use imperial system. Instead of roughly 28 mil total, the display registered something close to 17 mil. It was the same for trip distance A or B. The odometer on the other hand seems to have added the correct 28 mil. Could the program had treated the value as km and converted it to mil while the value was correctly recorded as mil and didn’t need any conversion. Any thoughts?
I have this issue as well.

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

Post by Rothar1 » Nov 20 2020 5:54am

Rothar1 wrote:
Nov 19 2020 9:05am
casainho wrote:
Nov 19 2020 8:51am

Very strange. At least it keeps working.

The currents and power are measured by the motor controller and sent to display.

Try for instance to limit the motor current or power and see if has effect, even if they are shown as 0.
Geez. That was quick. Thanks Casainho . No time for further testing today. I'll do some experimenting tomorrow and report.
It's a brand new controller but I also have a spare controller so will be able to swap out if needed.I'm suspecting controller.
Tested. Motor power zero most of time.Randomly reading 10-50 watts when obviously delivering more. Tried various assistance levels and different power delivery on each at first.
After a few km power reduced in all assistance levels. Now putting out very little.
I'm thinking it's a controller hardware issue but I'm wondering if it's worth reflashing display and motor before taking it apart.Opinions???

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 » Nov 20 2020 6:47am

Rothar1 wrote:
Nov 20 2020 5:54am
Rothar1 wrote:
Nov 19 2020 9:05am
casainho wrote:
Nov 19 2020 8:51am

Very strange. At least it keeps working.

The currents and power are measured by the motor controller and sent to display.

Try for instance to limit the motor current or power and see if has effect, even if they are shown as 0.
Geez. That was quick. Thanks Casainho . No time for further testing today. I'll do some experimenting tomorrow and report.
It's a brand new controller but I also have a spare controller so will be able to swap out if needed.I'm suspecting controller.
Tested. Motor power zero most of time.Randomly reading 10-50 watts when obviously delivering more. Tried various assistance levels and different power delivery on each at first.
After a few km power reduced in all assistance levels. Now putting out very little.
I'm thinking it's a controller hardware issue but I'm wondering if it's worth reflashing display and motor before taking it apart.Opinions???
I think is the motor controller only although I think this is the first time someone reported this issue.
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware

Developer of OpenSource knowledge and technology for ebikes: Wireless Ebike boar ANT+ and Bluetooth, 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 to help my developments: paypal.me/jorgecasa

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

Post by Rothar1 » Nov 20 2020 7:49am

casainho wrote:
Nov 20 2020 6:47am
Rothar1 wrote:
Nov 20 2020 5:54am
Rothar1 wrote:
Nov 19 2020 9:05am
casainho wrote:
Nov 19 2020 8:51am

Very strange. At least it keeps working.

The currents and power are measured by the motor controller and sent to display.

Try for instance to limit the motor current or power and see if has effect, even if they are shown as 0.
Geez. That was quick. Thanks Casainho . No time for further testing today. I'll do some experimenting tomorrow and report.
It's a brand new controller but I also have a spare controller so will be able to swap out if needed.I'm suspecting controller.
Tested. Motor power zero most of time.Randomly reading 10-50 watts when obviously delivering more. Tried various assistance levels and different power delivery on each at first.
After a few km power reduced in all assistance levels. Now putting out very little.
I'm thinking it's a controller hardware issue but I'm wondering if it's worth reflashing display and motor before taking it apart.Opinions???
I think is the motor controller only although I think this is the first time someone reported this issue.
Certainly is a weird set of symptoms. My replacement controller is an old 8 pin female connection. Are the pinouts the same as the newer male 8 pin??

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

Post by PieterDerckx » Nov 21 2020 5:09am

Hi all, maybe this topic has been raised somewhere but i could not find. Hope someone can support me!

I finally upgraded both TSDZ2 and 850C to the latest OS version, but no startup, after 20sec the 'error brakes' is shown. As far is i could find this points to a communiction error. So i checked a lot of older versions and v05.0 beta 3 is the one that starts. Later versions did not at least.
When i swithc on the v0.5.0 beta 3 values are 'running'; values for battery, speed and power are changing constantly, even without activating anything :(

I used the DIY cable for programming the TSDZ2, must be OK as both flashing and veryfying shows no errors.
Regarding the 850C i'm not that sure as i (assume) here we just do the flashing, no veryfying.... but flashing just starts for any version after press on the (remote) power button of the 850C. Is there a way to check the flashing otherwise?
For programming the 850 C i used the DIY version to acc. https://github.com/OpenSource-EBike-fir ... bootloader

Hope this sounds familiar to one of the users.
For now i would like to have 'any' version to switch back to be able to use my velo (that is where i installed it).

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

Post by Swannking » Nov 21 2020 12:16pm

PieterDerckx wrote:
Nov 21 2020 5:09am
Hi all, maybe this topic has been raised somewhere but i could not find. Hope someone can support me!

I finally upgraded both TSDZ2 and 850C to the latest OS version, but no startup, after 20sec the 'error brakes' is shown. As far is i could find this points to a communiction error. So i checked a lot of older versions and v05.0 beta 3 is the one that starts. Later versions did not at least.
When i swithc on the v0.5.0 beta 3 values are 'running'; values for battery, speed and power are changing constantly, even without activating anything :(

I used the DIY cable for programming the TSDZ2, must be OK as both flashing and veryfying shows no errors.
Regarding the 850C i'm not that sure as i (assume) here we just do the flashing, no veryfying.... but flashing just starts for any version after press on the (remote) power button of the 850C. Is there a way to check the flashing otherwise?
For programming the 850 C i used the DIY version to acc. https://github.com/OpenSource-EBike-fir ... bootloader

Hope this sounds familiar to one of the users.
For now i would like to have 'any' version to switch back to be able to use my velo (that is where i installed it).
If u can find another flashing cables for the motor and the display which are known to work, you should give that a try. Issues like yours usual originate from the cables.

PieterDerckx   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 PieterDerckx » Nov 22 2020 5:51am

Swannking wrote:
Nov 21 2020 12:16pm
PieterDerckx wrote:
Nov 21 2020 5:09am
Hi all, maybe this topic has been raised somewhere but i could not find. Hope someone can support me!

I finally upgraded both TSDZ2 and 850C to the latest OS version, but no startup, after 20sec the 'error brakes' is shown. As far is i could find this points to a communiction error. So i checked a lot of older versions and v05.0 beta 3 is the one that starts. Later versions did not at least.
When i swithc on the v0.5.0 beta 3 values are 'running'; values for battery, speed and power are changing constantly, even without activating anything :(

I used the DIY cable for programming the TSDZ2, must be OK as both flashing and veryfying shows no errors.
Regarding the 850C i'm not that sure as i (assume) here we just do the flashing, no veryfying.... but flashing just starts for any version after press on the (remote) power button of the 850C. Is there a way to check the flashing otherwise?
For programming the 850 C i used the DIY version to acc. https://github.com/OpenSource-EBike-fir ... bootloader

Hope this sounds familiar to one of the users.
For now i would like to have 'any' version to switch back to be able to use my velo (that is where i installed it).
If u can find another flashing cables for the motor and the display which are known to work, you should give that a try. Issues like yours usual originate from the cables.
Sounds like a good idea Swannking, the question is of course, where to get one. Maybe one of the readers lives close to Maastricht, Netherlands whom i could use for testing... :roll:


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