Thanks for this video!! Nice graphs!! How did u measure and plot it with black background?
@richard_wenner3 күн бұрын
Sorry I really can't remember but it was probably a bodge of some kind :)
@MangoCitizen6 күн бұрын
How about using separate left & right throttles for each wheel. Of course, some diy is needed, like reversing one of the throttles etc etc.
@richard_wenner5 күн бұрын
What do you achieve by doing this? a) you have no solid reference from which to assess your twist grip throttle position and b) If differential power is applied particularly during cornering then you could end up with a turning moment leading to skidding. But hey - give it a try and let us know (I really don't recommend this though)
@MangoCitizen5 күн бұрын
@@richard_wenner A slight leaning curve here. This will be mostly for slopes and achieving high speed slowly, not for stop jerk motion. First the rear motor will be powered and later it shall be assisted by the front motor as per requirement . This way all the required power will be supplied slowly and- the front wheel will not skid while spinning fast. Sequential power!!
@richard_wenner5 күн бұрын
@@MangoCitizen 4 wheel EVs have sophisticated processors with feedback to maintain precise traction control (and anti-skid breaking). Not sure how you could sense this from your two wheels whilst still trying to hold on and steer via the handle bars.
@adrichowdhury10797 күн бұрын
Please give the links in the description.
@richard_wenner7 күн бұрын
Sorry I don't know where this stuff is any more
@jonathanlau752112 күн бұрын
Absolute newbie here. If I am using a STLinkV2 instead of a Serial adapter, what should I do at 1:15 in the video ? (Using Blue Pill)
@richard_wenner12 күн бұрын
Have you understood the complete video - with both options?
@jonathanlau752112 күн бұрын
@@richard_wenner Probably not. I only see using Serial Adapter (Tx-A10 + Rx-A9), but nothing when using STLink v2. Need to do anything else with the STLink v2 before Uploading the Blink program from Arduino IDE at 2:04
@richard_wenner11 күн бұрын
@@jonathanlau7521 You just have to ensure that you select the correct output to target. I think everything else should be set for you. Good luck.
@vogel431Ай бұрын
Hi,. nice video but where are the links?
@richard_wennerАй бұрын
I'd forgotten all about this sorry. I'll try to go back and look but am really busy at the moment. Apologies.
@vogel431Ай бұрын
@@richard_wenner Thx. I typed it in by hand anyways.
@richard_wennerАй бұрын
@@vogel431 Thanks for letting me know. (Clears one thing from my ToDo list). Best of luck.
@fash9340Ай бұрын
awsome
@richard_wennerАй бұрын
Thank you.
@mark4jrАй бұрын
Thanks for all the concise and important information! Was wondering if it was possible to run two controllers off a single PAS/Throttle, answered it with confidense :)
@richard_wennerАй бұрын
Happy cycling.
@mnshp7548Ай бұрын
the only thing i would mention is to keep an eye on the front forks and the ebike motor, i have heard the motor can damage the forks over time and when accelerating hard can rip out causing you to fly over the handlebars, im not sure how true that is but because of that on my bike i have the motor mounted at the rear with 2 large 5mm thick steel plate as that seems to be the only thing that can handle the torque
@richard_wennerАй бұрын
Mmm yes, I have the same fear with one of my bikes that has an aluminium frame. It's light and I can weld it if necessary BUT I'm aware of invisible weakness and fracture failures that are bound to happen over time (particularly with the ever growing number of pot holes here). The other thing is the adoption of torsion bars. Again, ordinary bike frames do not consider the level of torque that modern motors can produce. Thanks for your contribution and happy cycling! :)
@drnitrogen23Ай бұрын
A very cool video of a very cool band!!
@richard_wennerАй бұрын
Glad you liked it.
@nikotinesmolaАй бұрын
Hello! My Arduino IDE doesn't have HIDBOTTLOADER, what should I do?
@richard_wennerАй бұрын
Which version are you using?
@nikotinesmolaАй бұрын
@@richard_wenner 2.2.1
@rafaellima5786Ай бұрын
Wonderful!
@informationyes2 ай бұрын
so how is it legal unless you have just registered it as a moped with all the legal requirments?
@richard_wenner2 ай бұрын
It is not (for use on UK roads). I'm working on an acceptable route to legality.
@martingriffiths33272 ай бұрын
Richard - what an excellent video - simplicity, clarity and engaging - thank you.
@richard_wenner2 ай бұрын
Thank you. I only wish I could find my full version of this video that this comes from. :(
@niksm80803 ай бұрын
wow.... Richard... your instruction is exemplary. you've taken very complex subject matter and made it attainable to anyone! As a teacher of RF, I appreciate you sincerely!
@richard_wenner3 ай бұрын
Thank you. I only wish that I'd kept the complete video that this was part of. Have you played with 'Meshtastic'? It's a great tool for teaching practical, low cost. IoT based RF, I'd have thought.
@AdityaMehendale3 ай бұрын
The precise usage of language is crucial: This cannot happen again --> Rephrase --> "We must not allow this to happen again" or "We ought not let this happen again" The only "cannot" is --> "We cannot go faster than the speed of light". Message received, thanks for spamming the "subscriptions" folder :p
@AdityaMehendale3 ай бұрын
PS - Are you likely to press Ctrl-Z on Brexit? Asking for a friend..
@richard_wenner3 ай бұрын
That ship has sailed but the obvious action, in commercial terms, would be to return closer to our largest trading partner. Although, with worrying EU moves towards the right, any form of political is a non started.
@richard_wenner3 ай бұрын
I avoid the imperative hoping that viewers can arrive at their own conclusion. As I sat considering the current situation I could not help but think of the 'boiling frog' and pleased that we are now released from this tyranny, for the moment.
@Brickkzz3 ай бұрын
What is this series? :)
@richard_wenner3 ай бұрын
There should be a link at the very base for the full source. 1 kzbin.info/www/bejne/fZXaqWaPnKemhqM George Eustace 2 kzbin.info/www/bejne/gInTg4Vqfcl7ea8 Sajid Javid 3 kzbin.info/www/bejne/eaCQqp6Fga6bY5o Matt Hancock 4 kzbin.info/www/bejne/Y2nPfYarra2Sg80 Dominic Raab 5 kzbin.info/www/bejne/r3SQq2p9d5eNjJI Bill Cash 6 kzbin.info/www/bejne/hmLPaJyJbLeofKc Alok Sharma 7 kzbin.info/www/bejne/hJuZnaGVfJ2rq7s Chris Grayling 8 kzbin.info/www/bejne/r3mXhHyJrdRoa6M Kwasi Kwarteng 9 kzbin.info/www/bejne/ppm8iWmdm6l3Z6M Paul Scully 10 kzbin.info/www/bejne/q5SsnaqojLqojdU Theresa May 11 kzbin.info/www/bejne/gaGamZuGYrF_jac Brandon Lewis 12 kzbin.info/www/bejne/fqmUeIycqZuHnLM Nadhim Zahawi 13 kzbin.info/www/bejne/mJ2bmo18Z9J7gNU Chris Heaton Harris 14 kzbin.info/www/bejne/jXvXiqhva7KJj6s John Redwood 15 kzbin.info/www/bejne/pGrTlJ97bsR6ebM Michael Gove 16 kzbin.info/www/bejne/aaO6Y4p4g853qrc Andrea Leadsom 17 kzbin.info/www/bejne/f2SaoWuLm9OjhNU Nadine Dorries 18 kzbin.info/www/bejne/b56nnnRnfN-eis0 Owen Paterson 19 kzbin.info/www/bejne/goTWanuZlrZmic0 Neil Parish 20 kzbin.info/www/bejne/b4uWm31thairebs Chris Pincher 21 kzbin.info/www/bejne/g5yWgHysrad7etk Scott Benton 22 kzbin.info/www/bejne/nILOXqmXlqmfh5I Peter Bone 23 kzbin.info/www/bejne/rGayo6GaebRnlc0 Boris Johnson 24 kzbin.info/www/bejne/fnW9qWypqLd6o5o Full story
@dicktonyboy3 ай бұрын
Oh this is good. Thanks
@Xatinni4 ай бұрын
Fantastic tutorial, lots of reading and this has consolidated it all, and so professionally presented. thank you.
@richard_wenner4 ай бұрын
Thank you.
@PatricioAlvarezRojas4 ай бұрын
thnk u
@richard_wenner3 ай бұрын
Cheers
@Medienjunkie5 ай бұрын
Thanks a lot for this Instruction. It works perfect with my 2x1000W Engines @ 1 29Ah Battery
@richard_wenner5 ай бұрын
Brilliant! Happy cycling.
@Gabriel-c5n6m5 ай бұрын
I have a quick question does the pedal assist work on both motors
@informationyes2 ай бұрын
are u in the uk and how hard was it to register it as a moped and all that?
@davidcarr26496 ай бұрын
How can i get some of these meters? You're channel is amazing!!!
@richard_wenner6 ай бұрын
I'm sure mine came from China but I'm now only using these as a front end to a far more complete Arduino/GPS device.
@davidcarr26496 ай бұрын
I'm building a duel drive recumbent quad velomobile. On road mode, 250w 2WD limited to 25kph. Off-road mode, 4x4 8kw (4x2000₩ 20inch hub motors). You've definitely helped me out. I'm subscribing.
@richard_wenner6 ай бұрын
Thanks - best of luck. Do please keep me updated. I'm now looking at a quad following my tri kzbin.info/www/bejne/eZ-tYp6PgrOVrtUsi=XIQsfM0Amn3Mqtlq
@davidcarr26496 ай бұрын
@@richard_wenner you are building a quad for two?
@richard_wenner6 ай бұрын
@@davidcarr2649 or a quad for four although I think this would definitely cause interest with the local fuzz. AliExpress appears to have many cheap go-cart bases with steering and suspension for about £600 which appears to be great value (if they will ship them to the UK). btw that meter reference is here:- www.amazon.co.uk/Precision-Analyzer-Consumption-Performance-Backlight/dp/B07M5XD4G9/ref=asc_df_B07M5XD4G9/?tag=googshopuk-21&linkCode=df0&hvadid=309857966843&hvpos=&hvnetw=g&hvrand=16471503113968056366&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045425&hvtargid=pla-633698426290&psc=1&mcid=d352271c4f853e24921bdd00189b61d5
@paulatkinson77226 ай бұрын
Excellent explanation of Meshtastic
@richard_wenner6 ай бұрын
Thank you.
@TymexComputing6 ай бұрын
I wasn't aware that there is some acronym behind birdy chirping chirp, high intensity radar pulse, sonar pulse has similar sound
@richard_wenner3 ай бұрын
I don't think I was
@TymexComputing6 ай бұрын
Thanks i was interested in this chirping method, wasnt looking for it but yt suggested this vid on a second page. I wonder what's the information density with lora in a heavily populated spaces
@richard_wenner6 ай бұрын
As a spread spectrum technology it is perfect for layering/sharing RF signals across a wide frequency band (like WiFi). Remember the LoRa packets are very, very short and there are additional provisions within the LoRAWAN stack to increase the resilience of the system as a whole. Obviously performance is better in rural/quiet areas but again in built up areas (radio noisy & relatively hostile) the use of more concentrated nodes (like mobile phones) can also be used but I've no information about any areas where saturation has occurred.
@wireless80211x6 ай бұрын
Champion !
@richard_wenner3 ай бұрын
Thanks
@6688846993nnutt6 ай бұрын
Very useful information! Thank you
@richard_wenner6 ай бұрын
Thank you.
@philorkill7 ай бұрын
Thank you for sharing this information in an easy to digest way.
@richard_wenner7 ай бұрын
My pleasure - thank you for your comment. It makes these things worthwhile.
@davidh11877 ай бұрын
Yep - I get the same result. Arduino fails to upload and it is looking for a com port. In my case the bootloader itself seems to be the problem as on completion of the install via STM32 programmer, the green LED (PC13) flashes very fast continuously (almost looks like it is continually lit fast). Stuck with using the STLink V2.
@Reyhank45Music6 ай бұрын
same bud but windows throws an error about unrecognized usb device edit: i got it working
@Vandebilt6 ай бұрын
Same here but on MacOS. I get "Failed uploading: no upload port provided" and the only available port is Bluetooth-incoming-port. UPDATE: I managed it to work and MacOS/Arduino IDE see the virtual USB.
@Reyhank45Music6 ай бұрын
oh bruh you just need to upload a blink sketch using arduino ide
@davidh11876 ай бұрын
@@Reyhank45Music Arduino IDE just errors trying to upload anything to it including the blink sketch.
Very interesting, & well presented/explained, thanks. Trike? I have a friend who is thinking that way. My main thought is, what do you do if it breaks down? Have you thought how you'd push it? Bloody awkward, I think... 👍
@richard_wenner7 ай бұрын
Thank you. 3 Wheeler break down? You can always pedal. kzbin.info/www/bejne/qqbOZniei5Wbibcsi=EZgtxXAVcKOR1gLv but I don't
@richard_wenner7 ай бұрын
kzbin.info/www/bejne/eZ-tYp6PgrOVrtUsi=XwHcQW2aiozYMOD2 Turned out to be a good 2 seater too! :)
@undercrackers567 ай бұрын
Does this approach result in me being able to program my STM32F103C8xx "Bluepill" with STM32CubeIDE and genuine ST-Link V2 or is it only for Arduino type projects? I have three of these ST-Link V2 clones and not one of them works with STM32CubeIDE or STM32CubeProgrammer.
@nobodyelse-k8z7 ай бұрын
I 've seen, on Cube you can define in Debug a procedure to flash the device to use the same program the bootloader / arduino package offers. Run > Debug Configuration > C++ Application > Main > C++ Application > [command to flash] [arguments]
@harryman118 ай бұрын
Your channel is way too good to have this few of views and subs. Thanks for the amazing videos.
@richard_wenner8 ай бұрын
Thank you.
@dennisfilek56528 ай бұрын
Hi Richard, What a great video, well done! Very informative, well presented, and easy to follow. I had two Voillamart hub motor kits but didn't know how to wire it with one controller and ended up ruining the throttle and one controller. After watching your video, I was able to successfully wire the two controllers with one throttle. I can't thank you enough. Finally a clear, concise and extremely helpful video. Is it possible to wire up two Voillamart controllers with the LCD meter with one throttle? Thank you
@richard_wenner8 ай бұрын
You could use a multipole switch or relay to flip between the required connections I suppose but take care. What is it that you expect to get back?
@dennisfilek56527 ай бұрын
Hi Richard, I was hoping to connect two controllers and one LCD display and one throttle. The reason being; battery level, speed, distance traveled. I know the Voillamrt controllers with LCD display have different wiring, and was hoping to avoid two separate displays and two separate throttles. I don't know if this is possible. Thank you for your response.
@richard_wenner7 ай бұрын
@@dennisfilek5652 Have you the full connection details of the units you are using?
@dennisfilek56527 ай бұрын
Hi Richard, These controllers have the usual wiring for the motor, hall sensors, brakes, etc. They also include red, black, and green for the throttle , red, blue, black,green, and yellow for the display with on/off switch.
@richard_wenner7 ай бұрын
@@dennisfilek5652 So no description of the function of the wires then?
@fotografm8 ай бұрын
Great explanation. Thank you !
@richard_wenner3 ай бұрын
Cheers
@ussrback8 ай бұрын
What a professional voice actor ❤
@richard_wenner8 ай бұрын
Thank you.
@salmanarizki-b4w8 ай бұрын
sir , can you make this video with blackpill version? thank you
@richard_wenner8 ай бұрын
I'll put it on the list to be looked at but I'm currently snowed under with requests and productions. Sorry.
@STRaceDevelopment9 ай бұрын
omg. dude. indian guys should lick your balls. they think they know someting. i've been shuffeling around 4 hrs to find this video.
@remussebastianmadmax58169 ай бұрын
Frumos
@richard_wenner3 ай бұрын
Mulțumesc
@rakeshtg54549 ай бұрын
it's incredible how simple you've made this seem! thanks a ton!
@richard_wenner9 ай бұрын
Thank you
@rcflyair23869 ай бұрын
Failed uploading: no upload port provided
@samithawaba8959 ай бұрын
very nice and well explained, I am working on a similar project and was wondering if a hoverboard controller was used. they are designed to handle two motors at the same time and they are cheap to buy second hand. let me know your thoughts
@richard_wenner9 ай бұрын
The difference is that the phasing of the motors on a hover board do not matter - blade positioning between the two is irrelevant whereas the feedback from each motor on a bike varies with size of wheel and differential distance travelled.
@samithawaba8959 ай бұрын
@@richard_wenner that is actually correct, thanks for your answer 😊
@richard_wenner9 ай бұрын
@@samithawaba895 please let us know how you get on - I'm currently working on an e-kayak
@mdvandale9 ай бұрын
Can you add a control switch to select rear, front or both hubs to be used? I think the manufactured dual hub bike do.. so prebuilt dual hub bikes have 1 or 2 controllers?
@richard_wenner9 ай бұрын
Not seen a dual hub version BUT they would have two run 2 controllers - because of the sync problem I explained in this video. Why do you wish to switch between 1 and 2 motors? I see no advantage in the complication (or dragging an unpowered motor along).
@mdvandale9 ай бұрын
@@richard_wenner I plan to use my bike a little for hunting in the woods, I’m thinking having the front hub with give me better AWD over small obstacles like down trees etc.. there isn’t always a clear path
@richard_wenner9 ай бұрын
@@mdvandale I hope that you do not mind me saying but in my experience this kind of manipulation is unnecessarily complex, difficult to control (in the field - no pun intended) and ineffective. Good luck anyway.
@mdvandale9 ай бұрын
@@richard_wenner so your saying the only way would be to purchase one already made with a 2 hub setup, I was hoping their was an upgrade path.
@richard_wenner9 ай бұрын
@@mdvandale I believe that what I was saying was - if you have dual hub drive now don't bother to split it into two single/one dual drive. It's not a Land Rover where you have the time and easy controls to switch between the two modes during cycling. The only time I have done this is with a 5 drive hospital wheelchair where the customer wanted to provide a short very high power mode, in case the wheelchair was stuck before a large kerb.
@ylleba10 ай бұрын
This was one of the most concise informational videos I've seen in a long while. Thank you for making this!
@richard_wenner10 ай бұрын
Deep down really shallow? Thank you.
@indigneouschupacabra4311 ай бұрын
So this video shows us how to wire to make it dual motors right?
@richard_wenner11 ай бұрын
Yes, I had hoped that was clear from my explanation about the phasing of the motor drives (and the impossibility of doing so). This is 2 motors, two controllers, one battery and one twist grip. Hope this helps.
@indigneouschupacabra4311 ай бұрын
@@richard_wenner thanks bro.
@michaelandujar81092 ай бұрын
So it's not worth it then? How was the distance testing, and how much do you think it really helped out?
@Mondongaso11 ай бұрын
How could I do this with a second battery powering the second motor instead of using one battery for both motors? I have an electric scooter with a single 500W hub motor and a 48v battery. Id like to add a second motor to it from another scooter. The second scooter has a 350W hub motor and a 36v battery. Any chance its possible to upgrade my 500W scooter (48v batt) with the second 350W hub motor, the second controller as shown on this video but with an additional 36v battery all on the same throttle?
@richard_wenner11 ай бұрын
Measure the voltage that comes out of you throttle control on the 48v system. If it is 0 to 5v then there is little reason why the two systems should run from separate batteries. Ensure all -ve supplies are bonded together and +ve supplies separated. Also beware of the polarity of the brake leads. If you are not happy just down rate everything to 36v.
@ted213611 ай бұрын
Is 100w 20dbm? I am getting 50dbm
@richard_wenner11 ай бұрын
100W IS 50dBm, yes you are correct. It is also 20dBW. I hope what follows clarifies this point and does not add more confusion. The difference is in the units employed. Here we are considering relative and absolute levels. The video does state 'power ratio' (at 2:20) hence the figure you quote. It's a relative comparison and uses logarithms to condense/compress/expand a massive scale into more containable numbers. (It also allows the use of addition and subtraction when considering chains of gains and losses). As my example above states dBm is dB(milliwatts) and dBW is dB(watts) . If you are now happy with the explanation being about the units used you should also be happy that 100W = 0dB(100w). I really do hope that this helps.
@mariaefelices654311 ай бұрын
Brilliant information ty intrestng s cdf
@richard_wenner3 ай бұрын
Annoyingly I had a load of this stuff but it disappeared when cardiffschools.net was closed
@richard_wenner11 ай бұрын
You can see a follow up video by John Price here:- kzbin.info/www/bejne/bmaoYWNtpaesjKs
@urgeejo87 Жыл бұрын
Very interesting tittle , thank you for your excellent work!! 👍👍