Yahboom DOFBOT AI Large Model Vision Robotic Arm with ROS2 Python programming for Raspberry Pi 5

What kind of controller is used for the Dofbot? Do we have access to low level control parameters? can we implement a low-level velocity controller by ourselves? Also in some of the videos, I saw that there is minor backlash when the motion stops, any suggestion on how to avoid it or compensate for it? Thank you.

Hello friend,
Thanks for your question.
1. DOFBOT can use Raspebrry Pi and Jetson NANO.
2. Yes. You can access to low level control parameters. You can control the speed of the servo.
3. The slight rebound is due to the force on the arm. You can solve this problem by changing the speed of the servo or increasing the force on the base of the robotic arm.

I would like to know if there is any possibility of increasing the payload capacity of Dofbot by using a different powerful servo? If such a modification is possible, then what others change are needed to be done, to keep the precision of robot motion and control.

Hello friend,
Thanks for your question.
If you can recruit a suitable servo, the load capacity of DOFBOT can be increased.
But you need to consider whether your new servo can be installed on the aluminum alloy structure of the robotic arm, the current size of our servo is: 44.37*23.06"35.12mm

So I would like to purchase the Dofbot Pi version. However i would like to know if there is a possibility for extension, 1. Do you supply any vehicle on which the Dofbot can be mounted 2. Does Yahboom provides different varieties of grippers? 3. Does Yahboom provides and if Dofbot-Pi supports other sensors like LidaR, ultrasonic, etc. ? Thank you.

DOFBOT We do not currently reserve these features you described.
According to your description, the Transbot car is more suitable for you. You can check it: https://category.yahboom.net/products/transbot-pi

I have unboxed the unit. And when I try to calibrate the servos in the app.. I only get a green circle around Servo 1. And nothing else turns green.. what could be the issue ?

Hello Friend.
Thanks for your support to Yahboom products.
Could you contact us by E-mail, WhatsAPP or skype? We will provide you with professional technical support and after-sales service.
E-mail: support@yahboom.com
WhatsAPP: +86 18682378128
Skype: support@yahboom.com

In case of DOFBOT without Raspberry PI version , do you provide the microSD card with OS and Spftware that can be directly used if Raspberry PI is prepared ? Or should I prepare the microSD card and install the Linux OS and Software for the DOFBOT ? I wish you provide us with ready installed microSD card for the DOFBOT system.

Hi Friend, sorry for late reply.  There are some time difference, so i didn't reply you on time.
The SD card that has been written into the OS system and software file is the standard configuration of this robotic arm kit. Regardless of whether you purchase a package containing the Raspberry Pi board, you will get a SD card that has been written into the OS and software file. You can use it directly.
Sorry again for late reply.

Is there a detailed description of the expansion board? I have only seen the top level image of the board showing a list of 12 or so components.

Thanks for your question.
You can check this link to get Hardware Interface Manual. Link: http://www.yahboom.net/study/Dofbot-Pi

J'ai reçu le DOFBOT vendredi. Le montage s'est bien passé. Le robot semblait bien fonctionner. Après en coupure et une remise du courant, l'écran OLED ne s'allume plus et le buzzer ne se manifeste plus. Tout les autres témoins semblent fonctionner normalement. (J'en était à la connexion sur le téléphone portable). Pouvez-vous me dépanner ? Merci beaucoup.

Bonjour,

Veuillez envoyer un e-mail à support@yahboom.com. Notre équipe d'assistance technique professionnelle vous aidera à résoudre votre problème, alors n'ayez crainte.

Merci de votre compréhension.

Bonne journée !

What is the biggest difference between getting the Raspberry Pi version versus the version without the raspberry pi? What are the limited capabilities if I don't get the Raspberry pi version?

Hello friend,

The Raspberry Pi is equivalent to the brain of the DOFBOT robotic arm. Without the Raspberry Pi, the DOFBOT robotic arm will not be able to start and work properly.

If I buy the configuration without the Raspberry Pi (I already own one) would it be possible to connect it to the robotic arm? Also where can I find a guide on how to do it

Hello friend,
If you have Raspberry Pi board, you just need choose with Raspberry Pi version. The kit will contain all the accessories you need, except the Raspberry Pi.
Any other question, you can contact me by WhatsAPP or E-mail.
WhatsAPP: +86 18682378128
E-mail: market@yahboom.com