New TSDZ2 Open Source firmware with Bluetooth interface
- Thread starter mspider65
- Start date
Hi all, fist great thanks to mspider65 for his work which convinced me to start my first build on a Scott Spark 760 (full suspended mtb). It's now absolutely fun to ride even in the snow 
. My only variant in the build was to put the esp32 board in a small waterproof (therotically... ) board at the bottom of the seat tube so I did not have to open the motor.
I confirm that I had some trouble to flash the v10 motor firmware even when following the sequence above. After the off/on sequence the program was stuck on 'uploading 100%' forever. I had to interrupt the update, redo an off/on sequence and then it initiated the 'writing xx%' sequence.
Here is the result of my hall calibration.
Still I have one question : how is the 'walk assist' mode triggered, keeping the down button as before does not trigger any assistance. Thanks again
. My only variant in the build was to put the esp32 board in a small waterproof (therotically... ) board at the bottom of the seat tube so I did not have to open the motor.I confirm that I had some trouble to flash the v10 motor firmware even when following the sequence above. After the off/on sequence the program was stuck on 'uploading 100%' forever. I had to interrupt the update, redo an off/on sequence and then it initiated the 'writing xx%' sequence.
Here is the result of my hall calibration.
Still I have one question : how is the 'walk assist' mode triggered, keeping the down button as before does not trigger any assistance. Thanks again
I had a ride today. Power assist mode runs very smooth, about as loud as before I guess. Torque mode is really quite silent, But I not really used it before.
Thanks for your excellent work!
One little issue I had. Bluetooth pairing got lost several times and I had to pair again. I'm not sure if it's an issue with my smartphone. Didn't experienced that before.
Thanks for your excellent work!
One little issue I had. Bluetooth pairing got lost several times and I had to pair again. I'm not sure if it's an issue with my smartphone. Didn't experienced that before.
First Thank you @mspider65 for your brilliant work in this project!
Just to report, with an Android 11 phone I can't update the firmware, app just closes when I press the button to start updating.
I used another phone with Android 10 to update the firmware, it went fine.
Today is raining I can't test drive it, according with the weather forecast tomorrow I will do it.
My hall sensor calibration with a 48V motor and 13S battery:
Just to report, with an Android 11 phone I can't update the firmware, app just closes when I press the button to start updating.
I used another phone with Android 10 to update the firmware, it went fine.
Today is raining I can't test drive it, according with the weather forecast tomorrow I will do it.
My hall sensor calibration with a 48V motor and 13S battery:
I have the XH18 display, thanks for your answer. It works now, don't know if it's related but I went in the display params to deactivate the '6 km/h' option and reactivate it, as the walk assist levels were already on their default values in the app. With this display you have to keep the rotating knob down for 1+ sec. which feels a bit unnatural. Excellent, let's ride now!mspider65 said:
lasercat
100 µW
- Joined
- Jul 9, 2020
- Messages
- 9
Hello everyone!
I'm fascinated with this project, but from the electronics side it can be improved even more!
So I asked a friend of mine to design a carrier board for a nrf which incorporates step-down converter and some other important parts. In a result we got a very slim board (15mm x 55mm):
We plan to order this board but a shipping price is a little too high and some parts are sold in a volume of 100 only. So we thought, that maybe somebody also would like such a board?
Cheers
I'm fascinated with this project, but from the electronics side it can be improved even more!
So I asked a friend of mine to design a carrier board for a nrf which incorporates step-down converter and some other important parts. In a result we got a very slim board (15mm x 55mm):
We plan to order this board but a shipping price is a little too high and some parts are sold in a volume of 100 only. So we thought, that maybe somebody also would like such a board?
Cheers
Thanks to those who shared the calibration result, both here and on the Italian forum, I see that the average value of the delay of the Hall sensor is quite constant.
However, there are some that have a fairly pronounced variance, probably due to hall sensors with different sensitivities.
I have therefore released a new version where the calibration, instead of calculating a single average value, calculates the delay for each state of the Hall sensors and a new firmware which then uses the calculated value for each state.
For those who have had quite different absolute values of T Offset in the calibration, this new version will bring benefits but will have to re-calibrate the Hall sensors.
Again everything needs to be updated: Android application, ESP32 firmware and motor controller firmware.
As usual the files are on Github: https://github.com/TSDZ2-ESP32/TSDZ2-ESP32-Wiki/tree/master/bin
I think this will probably be the last major version I release as I am satisfied with the result by now and I don't think there are any other major improvements to be made.
The season is improving and now I will use my time mainly to enjoy the bike.
However, there are some that have a fairly pronounced variance, probably due to hall sensors with different sensitivities.
I have therefore released a new version where the calibration, instead of calculating a single average value, calculates the delay for each state of the Hall sensors and a new firmware which then uses the calculated value for each state.
For those who have had quite different absolute values of T Offset in the calibration, this new version will bring benefits but will have to re-calibrate the Hall sensors.
Again everything needs to be updated: Android application, ESP32 firmware and motor controller firmware.
As usual the files are on Github: https://github.com/TSDZ2-ESP32/TSDZ2-ESP32-Wiki/tree/master/bin
- TSDZ2_ESP32v2.1.8.apk
- TSDZ2-ESP32-Mainv1.1.6.zip
- TSDZ2-v11.zip
I think this will probably be the last major version I release as I am satisfied with the result by now and I don't think there are any other major improvements to be made.
The season is improving and now I will use my time mainly to enjoy the bike.
devboy-greg
10 mW
- Joined
- Jan 10, 2020
- Messages
- 34
I placed an order with PCBWay for some assembled ESP32 boards as per the Wiki and received this reply from customer services when they audited:
Thanks!
Can someone answer this question for me?
Thanks!
devboy-greg said:
U4 is the PCB Temperature sensor.
Strange, the component on their supplier is available.
https://lcsc.com/products/Temperature-Sensors_585.html?q=tmp112
If it's really not available, you have two options:
- Replace it with the "TMP112BIDRLR" or the "TMP102AIDRLR". The second is the same component with a slightly lower accuracy
- Do not install it. Everything will still work and the only difference will be that you will not see the temperature of the ESP32 board
See this video from 3:05 to 4:25Pooyan said:
casainho
10 GW
- Joined
- Feb 14, 2011
- Messages
- 6,045
Fully wireless remote for TSDZ2
I just finished my wireless remote for TSDZ2 (that reuses the VLCD5 keypad). This remote communicates using Bluetooth, meaning it can work with TSDZ2-ESP32 board. It also has input for the brake sensors and sends the brake signal also wireless. And the coin battery used lasts for at least 2 years.
This remote board also communicates using wireless ANT+ and with this it also connects to the Garming Edge cycling GPS displays - the remote ENTER button is used the change the page of the Garming Edge display.
With this remote, you can avoid to use a display - you can use the Android phone app and this remote (this remote turns on/off the TSDZ2 motor, change assist level, walk assist and lights). The cost this remote is about 20€ in materials - see here: https://opensourceebike.github.io/remote/build_remote
For this remote to work with TSDZ2-ESP32, his firmware need to be adapted. We are using this remote with our wireless board that has a different microcontroller but the concepts are just the same as TSDZ2-ESP32 - as comparison, we are using an adapted version of TSDZ2-ESP32 Android app. How cool would be to program this remote ENTER button to change / swipe between the two Android app dash boards??
Here my TSDZ2 wireless remote, with a short cable (to connect to the brake sensors) with yellow Higo connector that is water prof:
And now installed on my EBike:
The idea is to reuse the VLCD5 remote. The case was 3D printed with black PLA plastic and I used transparent silicone to make the wireless remote fully water prof. There is one CRC2032 battery that will work for at least 2 years and a small wireless board.
Board in place with battery under it (green wires). I blocked the brake wire with a small zip tie, so it will be hard to pull it to much up to damage:
All wires soldered - the green board is the original from VLCD5 remote:
Just enough space for the wires:
Done!! Added a bit of transparent silicone on the LED hole to make it water prof:
I just finished my wireless remote for TSDZ2 (that reuses the VLCD5 keypad). This remote communicates using Bluetooth, meaning it can work with TSDZ2-ESP32 board. It also has input for the brake sensors and sends the brake signal also wireless. And the coin battery used lasts for at least 2 years.
This remote board also communicates using wireless ANT+ and with this it also connects to the Garming Edge cycling GPS displays - the remote ENTER button is used the change the page of the Garming Edge display.
With this remote, you can avoid to use a display - you can use the Android phone app and this remote (this remote turns on/off the TSDZ2 motor, change assist level, walk assist and lights). The cost this remote is about 20€ in materials - see here: https://opensourceebike.github.io/remote/build_remote
For this remote to work with TSDZ2-ESP32, his firmware need to be adapted. We are using this remote with our wireless board that has a different microcontroller but the concepts are just the same as TSDZ2-ESP32 - as comparison, we are using an adapted version of TSDZ2-ESP32 Android app. How cool would be to program this remote ENTER button to change / swipe between the two Android app dash boards??
Here my TSDZ2 wireless remote, with a short cable (to connect to the brake sensors) with yellow Higo connector that is water prof:
And now installed on my EBike:
The idea is to reuse the VLCD5 remote. The case was 3D printed with black PLA plastic and I used transparent silicone to make the wireless remote fully water prof. There is one CRC2032 battery that will work for at least 2 years and a small wireless board.
Board in place with battery under it (green wires). I blocked the brake wire with a small zip tie, so it will be hard to pull it to much up to damage:
All wires soldered - the green board is the original from VLCD5 remote:
Just enough space for the wires:
Done!! Added a bit of transparent silicone on the LED hole to make it water prof:
mspider65 said:
I had forgotten that there was still the annoying problem of the power delay on restarts.
Here then a new version that solves, or at least significantly improves, the situation.
New v12 version of the controller firmware (only controller fw need to be updated):
https://github.com/TSDZ2-ESP32/TSDZ2-ESP32-Wiki/blob/master/bin/STM8/TSDZ2-v12.zip
For those interested in the changes made, just see the changes made with the last commit on github.