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    TSDZ2 open source firmware only for KT-LCD3 (v0.19.0 / v.0.20.0beta1)

    Long time, no buba... :wink: Just wanted to say that I am alive and well. Just very busy. But also very grateful. Am hoping to catch up with everything but it will take some time. Luckily, my wonderful father is an avid reader of everything TSDZ2. Therefore, the last couple of months he has...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Thanks for giving good recommendations! I also find this very interesting! You got it! Basically you get more torque low cadence and less torque high cadence with the 48 V motor and a 52 V battery. But note that I am talking about peak torque. That is to say the very maximum torque you can...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Let us quantify the difference between the motors: Kv = RPM / Vp Where Kv is the motor velocity constant, Rs is the rotational speed in RPM and Vp is the peak voltage. So the Kv constant for the 48 V motor is 83.33 ≈ 4000 / 48. And the Kv constant for the 36 V motor is 111.11 ≈ 4000 / 36...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Jeff, Really cool to see your setup! Looks really nice and I hope we can create an even better firmware to go together with that hardware! As for the 36 V motor: I really like it because of several reasons. One of which is the higher cadence possible. The torque curve looks a bit different...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Have you set the max battery current to an appropriate value? Have you set the max power limit to an appropriate value? Have you tested if Walk Assist works? Have you enabled a riding mode? Have you made sure that the cadence and torque sensor work through the menu? I hope you do not need...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    :wink: Nice! I have not logged the power at 45 kph and have no way to test right now. Sorry about that, Max! But if you have a sufficient gear ratio the following graphs should be a good approximation of the power required at 45 kph and flat ground. Note that the power required is highly...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    "There is no difference between the 250/350/500/750 W versions of the TSDZ2." Again, when you are looking to buy a TSDZ2 and see that they are selling different versions with different wattages there is no difference in the hardware. The only difference in the hardware is the type of motor you...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Yes, I have tried everything from low 20s to high 50s in voltage. I highly recommend that you invest in voltage with the TSDZ2. The higher the better. There are no drawbacks except possible a higher purchase price. If you already have a 48 V battery I would not recommend upgrading to a new...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

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

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

    No problem at all! You can only enable one mode in the configuration menu. If you try to enable two modes it will disable the other one. E-MTB is the exception to this rule as it is possible to have it enabled together with any other riding mode. Here are the main modes: - Power Assist -...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Glad that you sorted it out! I do recommend to increase the gear ratio if you want a bit more assistance at higher speeds. Maybe install a 52 T crank or a cassette with an eleven teeth sprocket.
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    One of the perks of living where winters get really cold with an overall high air density is that the motor is kept cooler. So that helps me somewhat. There is no difference between the 250/350/500/750 W versions of the TSDZ2. The only difference in the hardware is what type of motor you might...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Thank you! :) I have a really good 52 V battery (maintains high nominal voltage for a long time) with a 52 teeth crank on a 36 V motor. Custom made bike with minimal resistance and really good tires. Using E-MTB exclusively as it does work well with my torque sensor. Depending on gearing...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    So it seems that the cadence is okay for you using the official firmware version. Let me know if you get any problems! Glad to hear! I hope you quickly got used to it! E-MTB Mode is a standalone riding mode and is isolated from the other modes. You can use it whenever you need a very...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    I do not think there is anything wrong with your cadence sensor. I believe there is simply a difference in how the firmware is built. It seems that when using Windows and the latest SDCC it works. But when using Linux and SDCC (possibly with some space optimizations) it does not work... I am not...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    That does not sound right. I am easily getting up to 50 kph without any problems. Be sure to check all the configuration parameters and let us know how it goes! Have you calibrated properly? See this video for more information on how to calibrate the cadence sensor...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    This is a very strange bug. There are no differences between my code and the official version... Will have to look at it more closely.
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Can confirm that there is a bug with the cadence displayed when I installed the 0.20.0 Beta 1 from the official project page. But it seems that the bug is not present on the 0.20.0 Beta 1 that is on my drive... Will have to confirm this by testing some more.
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Cadence Assist sets a duty cycle in the controller as soon as the system detects crank rotation. The desired duty cycle for each and every assist level can be configured in the setup menu. Cadence Assist is basically what you get on any standard electric bike without a torque sensor...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    My pleasure! Thank you for the feedback. Sorry for not having much time over for the time being. There is a chance that the new displays will offer some of the functionality we have discussed so the future is very exciting!
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    I would be more than happy to fork the project and make a special version. I could even implement some really nice features and characteristics with your help and recommendations. I bet there are several things you would like to include that are specific to handcycles. How about... ? - Ultra...
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    Overestimated battery voltage readout Flexible OpenSource

    It is not brute force at all. Just change the value from 87 to 86 and it should be better. See it as an ADC calibration. There is a possibility that you need to go to 85 for even greater accuracy. But do not change the BATTERY_VOLTAGE_PER_10_BIT_ADC_STEP_X512. But before changing anything I...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    Hello and thank you Zappan! :D The accuracy of the measurements depend on many different parameters. Such as temperature, ADC non-linearity and battery voltage. So there might be some large differences in accuracy between different systems. But I will nonetheless take a look and see if we can...
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    TSDZ2 mid drive with 860C, 850C or SW102 displays only -- Flexible OpenSource firmware (Casainho code only)

    I do understand it can be tricky to use some button events. Would you mind explaining how you operate the buttons when changing between subfields? You should basically double-click the button but instead of releasing on the second click you should hold until the subfield changes. There is no...
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