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  1. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    I know what you are referring to as per the GMAC clutchless motor but there is a but here! The bike was sold to me as a regen capable E-Bike and here Confirmation of regen capability Engwe Engine pro the specs confirm it and also a write up on it being tested and working with OEM controller...
  2. nickceouk

    Cadence sensor wiring on headless throttle plus pedal drive of grin Baserunner v5 z9

    It's not the grin Pas sensor unfortunately and is in fact installed by the OEM of Engwe Engine Pro ebike. It has a green led which lights up when I spin the pedals ...12 times per revolution but that does not mean it's been driven with the voltage it expects by BR or its return signal is...
  3. nickceouk

    Cadence sensor wiring on headless throttle plus pedal drive of grin Baserunner v5 z9

    You are right, I am not sure it's 12v sensor. What I did is I passed the V+ pin of the BR Pas cable to the V+ on the actual sensor(red wire). Yeah, connecting to CA would seem to be out of reach for since I am setting this one as a headless unit. I need to check voltages (12v or 5v)to...
  4. nickceouk

    External battery switch - what works best?

    He he - I have had this in the back of my mind that even if I ignore the added resistance (which I am unable to quantify as a battery capacity percentage) there is a decent chance of melting the switch since the DC ratings for them are very low. If I use the Anderson connectors I don't know why...
  5. nickceouk

    Connect charger directly to bike controller? (For testing.)

    I think the charger first checks battery voltage and then applies power at the same voltage for the constant current phase of the battery charging cycle. If this is indeed the case it will sense 0v from the controller and likely provide no output...ie 0V back to the controller. I may be wrong...
  6. nickceouk

    Temperature sensor in hub motor Baserunner setup

    After reading and comparing, I realized it's a geared motor and hence concluded that I don't have a temperature sensor but a speed sensor. I know it's possible to open the motor and add a temperature sensor on the same speed wire that will then be demuxed by a grin controller into separate speed...
  7. nickceouk

    Temperature sensor in hub motor Baserunner setup

    According to the default mapping 0.85v reading means the motor is at 88C when it's been sitting idle 😏 To be fair, I am not convinced that my motor even has a temperature sensor hooked to the white wire from the z910 motor cable that it passes to the controller. It might just be a speed sensor...
  8. nickceouk

    External battery switch - what works best?

    I want to know what is the best solution for switching battery input to an ebike controller (BR v5 z9 but this should not be important). As far as I could find by searching there is Option 1 an automotive/marine switch rated as 15A 250V AC or 20A at 125V AC ( left side in photos). It's a dual...
  9. nickceouk

    Temperature sensor in hub motor Baserunner setup

    Rear hub motor connected to BR v5 z9 , throttle and ebrake work as expected. The z9 connector from the motor has an additional white wire ( 5 hall related wires, 3 phases wires). The wire sits at constant 0.85v in the temperature tab of the Phaserunner software. This is then interpreted as...
  10. nickceouk

    Cadence sensor wiring on headless throttle plus pedal drive of grin Baserunner v5 z9

    So far I have a rear hub wired to a Baserunner v5 z9 headless (no cycle analyst). The thumb throttle and ebrake are working and behave as expected. The bike has a 3 wire cadence sensor and I have connected the 12v(sometimes shown as 5v) of the BR Pas cable to the red wire of the cadence...
  11. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    I was able to get the throttle to work. Similar to another users post and what the manuals were suggesting I wired the ebrake return signal to the mains cable throttle signal and then jumped the throttle to the ebrake pin on the BR mains cable. In the Phaserunner suite the ebrake pin is...
  12. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    I want to check if what I have done so far to setup the BR is how it's supposed to be done and if I have potentially missed something. 1)The ebike I am trying to setup with base runner is originally branded Engwe Engine pro 750W and listed to include Regen braking. 2)The OEM controller has a...
  13. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    Thank you very much AW - don't know how I would fix this if it wasn't for your help! As per my previous post I replaced the throttle and this new throttle outputs in the range from 0.88V to 4.22v. Considering that sorted now. My ebrake is a 2 wire NO(normally open) hydraulic lever type. You...
  14. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    Changed throttle and this one goes from 0.88V at rest to 4.21V with max pressure applied. Cleared the throttle and brake fault range back to default values 1.2V - 3.5V for throttle and 0.85V to 0.2V. No more faults showing in dashboard after this. Thank you
  15. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    The throttle voltage I am getting in the developer tab (first 2 Photos) ranges from 1.8 to 4.2 and I noticed that the voltage drops after pressing bellow 1v and later pressing further gets to it's max position of 4.2v The ignition? Perhaps I mis-communicated this setup : On the Baserunner...
  16. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    The first photo shows the throttle at rest is 1.9v and the second is while maxing the throttle with voltage at 4.2v I noticed that there is a white wire coming from the motor which is not one of the 5 hall sensor wires. I also saw that baserunner had a speed/temperature sensor on the same motor...
  17. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

  18. nickceouk

    Headless - New baserunner v5 Z9 - throttle issue

    I am trying to setup a grin baserunner v5 Z9 without the Cycle analyst display. According to the manual I need to connect 1) Main cable B+ pin(red wire) to the On/off pin (orange) via external switch. I wired that to a throttle with on/off switch and voltage display. To verify that this...
  19. nickceouk

    £ebay auction : 14s 82ah 4kWh(4132.80 Wh) NCM(NMC)+ jbd smart Bluetooth BMS + PU foam shell and Neutrik connector male/female

    Thanks @amberwolf.
  20. nickceouk

    £ebay auction : 14s 82ah 4kWh(4132.80 Wh) NCM(NMC)+ jbd smart Bluetooth BMS + PU foam shell and Neutrik connector male/female

    (Update 11/04/2024 - SOLD) I am selling this prismatic cell 14s battery pack built with 82ah cells. Battery only(without the charger) £ Battery + charger = Battery only+£100 Also selling j1772 Type 2 connector that converts to Standard UK 3 Pin 240V socket for plugging battery charger to...
  21. nickceouk

    DIY TRRS programmer cable for phaserunner

    The link you provide is TRS - USB while the phaserunner uses TRRS USB cable(one more pin essentially). Good question - I wasn't able to find the cable and sent an email to grin. While I was waiting I figured maybe I can simply build one from the info I posted here. That didn't work although I...
  22. nickceouk

    DIY TRRS programmer cable for phaserunner

    I can't get the programming cable anywhere so trying to build one. I have found information from the manufacturer which shows the trrs side pinout The document lists FT230x chip on the original cable to do the usb to serial connection. I have only found and bought ftdi 232rl as in photo...
  23. nickceouk

    Lightest and most compact E-Bike charger 14s(DIY GaN charger research)

    It seems that To(Texas instruments) have interesting GaN charging reference designs. I am guessing that some of them can be used or adapted for a nice 99% efficient, lightweight and portable charger. Would appreciate any comments
  24. nickceouk

    Lightest and most compact E-Bike charger 14s(DIY GaN charger research)

    Option 3) Can some of the hub controller circuitry be reused to charge the battery. Let's say I unplug the hub motor leads and plug AC 230v to another connector on the controller...It's all linked up to the battery anyway :wink: As far as I understand the GaN stuff is used as a first stage...
  25. nickceouk

    Lightest and most compact E-Bike charger 14s(DIY GaN charger research)

    Here is one 100watt compact GaN charger Suppose it's possible to remove some of the usb ports if 5 if them are to be hacked into one 500watt, plastic case etc and would look into connecting everything in series to get 58.8v at 10amp. Not sure if it's worth doing on a second thought...
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