@jimboselecta Hi, glad the guide has been useful. So the Motorshield rev 3 can provide up to 4amps in total, 2 amps per channel, but after 2amps in total is being used, it changes from 12v to 9v which helps manage the load/temps. I did put a heatsink on mine which seems like a typical addition, but it isnt necessary for it's operation. What it might do is extend the life of the board by keeping the temps lower. As for your power supply, by only having 2amps, it will reduce the power to the fans, but it might put strain on your power supply by running at its limit constantly. I'd recommend changing that, but other than that you're good to go 👍 Enjoy 😄
@mbrown278 good to know, thanks. I just tried turning the power down a bit in simhub and keeping the fan speed settings lower in the wind plugin and it seems.not to get as hot.
Thanks again!
OK...thanks so much for this! I put mine together last night...had to switch white and black wires. I also instead of cutting the fan wires...used a 4 pin molex plug that came with my Power supply. Removed two leads to nothing...and left in the leads that corresponded with the power and neutral wires on the fan. I cut it, and used that to make the connection to the motor shield. This way the fans are fully intact for future use somewhere else. ALSO...I first 3d printed a funnel to connect to 3 inch flex duct...and I can agree, the wind speed out of the end of the hose was pretty low...then I thought....wait...its missing a straightener. Basically the funnel is causing the wind to swirl down the duct, so when it exits the duct, its blowing sideways. If you print a funnel with straightening fins in the reduction section, the flow stays straight. VOILA! I tested the old design side by side...night and day. Anyways...kuddos to a guy on thingiverse for a great design print.
https://www.thingiverse.com/thing:5173449
I printed the tall one BTW...and connected 3 inch flex hose.
Oh boy this arduino stuff is frustrating.. Anybody used Arduino Uno v3 with Cytron MDD10A version 2. Plan on using two 12volt dc 7 amp fans. Could use some wiring hints and arduino custom sketch as the motor board is not on SimHub list. Now there's a challenge, ha
Well hello Simracers !
I'm reaching out to you because I've been experiencing an issue with getting the wind simulator to work using the Arduino UNO REV+ and Arduino Shield REV3. The problem arises when I click on the TEST button in SIMHUB.
I have followed the instructions provided in the DIY guide diligently and have also performed the recommended step of cutting the jumper at the back, as well as testing a fan with a direct connection.
Initially, I thought the issue might be due to insufficient power from my power adapter (12V 1.5A). Following another tutorial, I purchased a new 12V 3A adapter along with the EZDIY-FAB 120mm 200CFM 4000RPM fans.
However, despite these changes, I am still facing the same roadblock and unable to make the simulator work as intended. It is disheartening for me to struggle with something that appears to be simple in the instructional video.
Therefore, I am reaching out today, hoping that a kind soul might be willing to assist someone who is feeling saddened by the inability to accomplish this seemingly straightforward task. If you have any suggestions, ideas, or advice to help resolve this issue, I would be extremely grateful to receive them.
Thank you sincerely for your attention and willingness to help. Your assistance would be greatly appreciated.
Best regards,
ReDHank
---
FR version:
Salutation !!
J'espère que vous allez bien. Je me permets de vous contacter car j'ai rencontré un problème avec le fonctionnement du simulateur de vent, utilisant l'Arduino UNO REV+ et l'Arduino Shield REV3. Je suis confronté à une difficulté spécifique lorsque je clique sur le bouton TEST de SIMHUB.
J'ai suivi attentivement les étapes indiquées dans le guide de bricolage (DIY) et j'ai également effectué la modification recommandée en coupant le jumper à l'arrière, ainsi qu'en testant un ventilateur avec une connexion directe.
Dans un premier temps, j'ai pensé que le problème pouvait être dû à l'adaptateur secteur dont la puissance était insuffisante. J'ai donc suivi un autre tutoriel et acheté un adaptateur de 12V 3A, ainsi que les ventilateurs EZDIY-FAB 120mm 200CFM 4000RPM.
Malheureusement, malgré ces modifications, je suis toujours bloqué au même stade et je n'arrive pas à faire fonctionner le simulateur comme je le souhaite. Cela me rend assez triste de ne pas parvenir à réaliser cette tâche pourtant apparemment simple selon la vidéo.
C'est pourquoi je me tourne vers vous aujourd'hui, dans l'espoir qu'une âme charitable puisse venir en aide à une personne souffrant de cette frustration. Si vous avez des suggestions, des idées ou des conseils pour résoudre ce problème, je serais extrêmement reconnaissant de les recevoir.
Je vous remercie sincèrement pour votre attention et votre disponibilité. Votre aide serait grandement appréciée.
Cordialement,
ReDHank
@bjc1 Hi, sorry for the late reply, checkout the video which can be found here if you haven't already:
In Simhub when you setup the Arduino, under the SHAKEIT PWM Outputs section, select 2, not 1, that is the main difference to the video
Hope that helps,
Mark
@redhank Sorry for the late reply, so you have tested the fans which do spin when they have direct power.
Please can you confirm: Do the lights on the motor shield light up when you press TEST in simhub? Try measuring the voltage or current at the terminals when you press test, to see if it is getting anything, and which way around is positive or negative, and retry the wires.
Hopefully we can figure this out for you 👍
Désolé pour la réponse tardive, vous avez donc testé les ventilateurs qui tournent lorsqu'ils ont une alimentation directe. Pouvez-vous confirmer, s'il vous plaît : les voyants du bouclier du moteur s'allument-ils lorsque vous appuyez sur TEST dans le simhub ? Essayez de mesurer la tension ou le courant aux bornes lorsque vous appuyez sur test, pour voir s'il obtient quelque chose, et dans quel sens est positif ou négatif, et réessayez les fils. J'espère que nous pourrons comprendre cela pour vous 
@gazzip - Hi. I got the Cytron MDD10 as well and wondered how you changed the jumpers as described. I haven't managed to get my fans to spin yet and thinking it's possible the jumper settings are wrong. TIA.
OK...thanks so much for this! I put mine together last night...had to switch white and black wires. I also instead of cutting the fan wires...used a 4 pin molex plug that came with my Power supply. Removed two leads to nothing...and left in the leads that corresponded with the power and neutral wires on the fan. I cut it, and used that to make the connection to the motor shield. This way the fans are fully intact for future use somewhere else. ALSO...I first 3d printed a funnel to connect to 3 inch flex duct...and I can agree, the wind speed out of the end of the hose was pretty low...then I thought....wait...its missing a straightener. Basically the funnel is causing the wind to swirl down the duct, so when it exits the duct, its blowing sideways. If you print a funnel with straightening fins in the reduction section, the flow stays straight. VOILA! I tested the old design side by side...night and day. Anyways...kuddos to a guy on thingiverse for a great design print.
https://www.thingiverse.com/thing:5173449
I printed the tall one BTW...and connected 3 inch flex hose.
I agree 100% on using this design. Tried the original and it was just ok. This design is WAY better and stronger airflow! Thanks for the heads up on this. The rest of you do your self a favor and print this design instead.
@micka35 Je suis en France et j'ai une imprimante 3D.
Je n'ai pas testé l’entonnoir avec les ailettes. je sais juste que celui sans ailette annule le vent et rend le système très peu efficace.
Je vais lancer une impression de l'entonnoir à ailettes et si c'est concluant, je peux éventuellement vous en imprimer. Vous êtes dans quelle région ?
Comparatif entre les 2 versions d'entonnoirs.
Le jour et la nuit.
Hello, j'habite en Bretagne 🙂
Heureux de savoir que cela fonctionne, au bout des tuyaux rétractables il est nécessaire de faire tourner les ventilos à 100% pour sentir un peu d'air ? Je préférerais éviter pour le bruit. De mon côté le but est de faire tourner les ventilos à une vitesse constante pour me rafraîchir, et non pas de faire varier la vitesse de rotation en fonction de vitesse en piste. Après je n'ai jamais utilisé de wind sim, peut-être qu'après test je changerai d'avis !
@jblondin Thank you for your feedback, indeed from the USA it won't be profitable.