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@jozefsoucik3115 5 ай бұрын

I recently trying achieeve ISR on BOOKWORM but getting: RuntimeError: Failed to add edge detection. So i fail to run ISR. Just polling works, but it is not ISR.

@thomasluk4319 10 ай бұрын

how to make the odometry more accurate? if no imu information is given

@sukrucanozdemir6246 Жыл бұрын

thank you for work and share about your project

@bhanuprakash6542 Жыл бұрын

I used wheel odometry from this i'm taking position X,Y & Angular Z from IMU.....After 3 to 4 cycles the bot continously drifting some what to the left or right side of the origin. I think its an IMU error rate...... Do you have any suggestions to improve my accuracy

@gilles4332 Жыл бұрын

hello and thank you for your work/passion and for your sharing, my project is a sky observation turret (rpi3 b+, hat dc & stepper motor, rpi hq cam and wide-angle usb cam, x2 stepper nema 17), fat to you I can finally control my turret with ps4 controller, the site for the hat dc stepper only provides example code and I don't know anything about python. Could you give me a clue to create an autonomous detection mode via the usb camera and recording on the USB key and alert via email. You may not have the time so pi time, otherwise many thanks in advance.

@chopper3lw Жыл бұрын

Thank you for this! This is everything I needed to know about how to do ISRs on the pi in C.

@MATLAB1Expert1 2 жыл бұрын

This is really amaaaazing

@antoinegaillard3644 2 жыл бұрын

Hello, already thank you very much for your video it deals with the subjects I am facing at the moment. I had a question, what is your useful benchmark for moving the robot in the environment ?

@aladinouannes7747 2 жыл бұрын

good job , how i can use this programe with esp32

@SinauTekno 2 жыл бұрын

Very interested, could you explain me with arduino microcontroller?

@MauricioHernandez-de8is 2 жыл бұрын

Cool prooject, are you still working in the robot?

@edissonfabriciocanarortiz3487 2 жыл бұрын

Great Video, could you explain how to make a 1m square?

@lancecruwys2177 2 жыл бұрын

What causes those events @12:44? What do you mean by handling the borders?

@hallkbrdz 2 жыл бұрын

Q: Instead of a loop for delay, is there a high-resolution counter I can use to turn on a GPIO pin, wait, and then turn it off again after 5µS?

@gusbots5677 2 жыл бұрын

Hello Bryan. I am not sure about a high-resolution counter. 5us is a very short time. Usually, for high speed sensors or actuators, I add an Arduino in the middle to better control the time.

@hallkbrdz 2 жыл бұрын

@@gusbots5677 Thanks. I do think it will require a RTOS since I not only have to drive 4 independent processes with timing like this to drive 4-input H-Bridges, but also another collecting angle information from an absolute encoder at speeds up to 10500 RPM. Still looking at options.

@arielcairoli2473 2 жыл бұрын

Hi, I want to measure frequency till 10khz. Do you think it is fast enough?

@emoutraspalavras-marloncou4459 3 жыл бұрын

Gustavo, thanks for the video and congrats on your English. I have one question and one issue: what happens if I change the motor driver code to use only a L293d on breadboard connected to Arduino? I see the throttle value is what makes the wheels move to a certain direction. As it ranges from -1.0 to 1.0, I had to convert the values for a 0-256 range (since those are the values the enable pin meant for PWM accepts). Arduino connected to RPi through USB cable communicates by means of Standard Firmata protocol. And the issue is the following: I am using a RPi 3+ and when I start ds4drv and pair it with the PS4 pad the RPI 3+ freezes and I end up losing connection (I ssh to it, since I use it headless). What could I do to solve those two matters? And I am looking to watching your videos showing ROS integration with your differential robot!

@gusbots5677 3 жыл бұрын

Hi Marlon. I am not so familiar with L293d but after a quick look it seems you need 2 PWM inputs. One for each directions. So your Arduino will have one PWM (0-256) to drive the motor in one direction (similar to my 0 to 1 motor command), and another PWM output (0-256) to drive to the other direction (similar to my 0 to -1 motor command). Is this sounds right? Now, about the ds4drv I am not sure. What I would do is just reinstall everything. These problems may happen because incompatibility between versions of libraries and python. Let me know if worked.

@philiptallents9034 3 жыл бұрын

You need more encoder resolution for better accuracy. Try using encoders on the motor shaft before the gearbox instead of on the wheels which is after the gearbox.

@Jp_Robotics 3 жыл бұрын

Nice 🔥

@EdwardPie 3 жыл бұрын

Nice video. Please where can I get a similar chassis to buy?

@gusbots5677 3 жыл бұрын

Hi !!! Inside the project doc folder, there is a worksheet with links for everything I used in the robot. Here is a link to it: github.com/gusbots/mark01/blob/master/doc/Mark%2001%20-%20Bill%20Of%20Material.xlsx

@cumulus3341 3 жыл бұрын

Great Video. Giving small examples really help in connecting the dots. I also built a lane following robot using the kinematics from Georgia Tech videos. But as I wasn't really taught Kinematics in college, I had to research a lot to understand how the equations really work behind the scenes.