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Building my DIY robot dog - SpotMicro 

Advanced Hobby Lab
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29 окт 2024

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Комментарии : 31   
@jcrash42
@jcrash42 Год назад
Cool. Yeah Chris Locke built this and decided to elongate the torso because it is too short
@AdvancedHobbyLab
@AdvancedHobbyLab Год назад
I might consider that too. I managed to find a smaller battery that fits, but the electronics are still squeezed in pretty tight.
@ChrisLocke1969
@ChrisLocke1969 Год назад
I did, yes... thanks for the mention! but I skipped the Pi, preferring to cobble together lots of arduino hardware instead.
@dado_offbrand9499
@dado_offbrand9499 9 месяцев назад
I triple dog dare you to release your code (ik you said you wanted to clean it up but yours is the best and simplistic I’ve seen)
@AdvancedHobbyLab
@AdvancedHobbyLab 9 месяцев назад
My code has been my most requested release. I'm definitely making it a priority and I obviously can't pass on a triple dog dare.
@AdvancedHobbyLab
@AdvancedHobbyLab 8 месяцев назад
@dado_offbrand9499 I've finally released my code: github.com/AdvancedHobbyLab/SpotMicro. Let me know what you think.
@dado_offbrand9499
@dado_offbrand9499 8 месяцев назад
@@AdvancedHobbyLab I am planning to build mine this week! I still have a lot of supports to remove and clean but I’ll keep you posted!
@AdvancedHobbyLab
@AdvancedHobbyLab 8 месяцев назад
Sounds great! I look forward to seeing what you do.
@martingamingstreamhighligts
@martingamingstreamhighligts 4 месяца назад
I am seeking to ascertain whether there are any issues with a servo having an angle of 120° to 140°? This is due to the fact that the shopping list specifies a servo with an angle of 180°.
@AdvancedHobbyLab
@AdvancedHobbyLab 4 месяца назад
For a simple walking gait, it only needs about 90 deg. of movement. If your servos have a smaller range, you may have to adjust the angle that you mount your servos so that the zero angle is at the average servo angle.
@nabeelest
@nabeelest 6 месяцев назад
I need confirm one thing. While assembling all your servos are set at zero right? Do you set the min and max limits for the servo in program right? I asked because for the shoulder it need to not be set at zero while assembly but 90 degrees. How do tackles this program? Cause if you don't they legs will break upon sweeping it the full 180 degrees the way you've assembled it. Also what program I need to run in the repo to make it walk? and Also I just have PCA9685 and RaspberryPi. What changes do I need to make? Thank you!
@AdvancedHobbyLab
@AdvancedHobbyLab 6 месяцев назад
By zero, I mean 90 degrees. It is about your frame of reference. Servos have a 180 degree arc which can be viewed as 0-180 or -90-0-90. In the latter, 0 would be equivalent to setting the servo to 90 degrees. You can use a different angle as your 0 position, but the joints will need to be mounted according. The min and max limit are set in the program. I currently don't have any programs in the repo to control the robot, however, you can look at "locomotion_test.py" to see how to make the robot move. I still need to work on a video for how to control the robot. The servo hat that I am using also uses the PCA9685 chip. It should work, however, I found that it struggled to carry enough current to the servos. I had to solder some extra wires from the power terminal to the servos to bypass the small trace wires on the PCB. Hope this helps.
@NvrIzwn
@NvrIzwn 5 месяцев назад
Hello, what battery you use and how you deliver enough current to all servo ?
@AdvancedHobbyLab
@AdvancedHobbyLab 5 месяцев назад
Any 2S lipo will work. I use a 2200mAh battery so that it will be small enough to fit inside the chassis. I decided to use: amzn.to/3WTydp2 (Affiliate link) I bought servos that can run at 7.4V so I could just route the battery power directly to the servo controller. My servo controller had a MOSFET in the circuit that couldn't handle the 7.4V. I had to solder on some extra wires to circumvent the MOSFET and directly connect the input voltage to the servos.
@Liuk78
@Liuk78 9 месяцев назад
Cool . What is your opinion about official language to program robot dog in the future ? C sharp ? Python? thank you
@AdvancedHobbyLab
@AdvancedHobbyLab 9 месяцев назад
Good question! I'm a big fan of Python. For this project, I used jupyter-lab and set it to be launched when SpotMicro boots up. This allows me to edit and run the code from a web browser which made development very easy.
@Liuk78
@Liuk78 9 месяцев назад
@@AdvancedHobbyLab Python is the best for people middle level but it is slow language . You can see the market . My opinion
@AdvancedHobbyLab
@AdvancedHobbyLab 9 месяцев назад
You're right. Python is a slow language. I'm just using Python for its convenience. What I've seen people do in the past is use Python to develop their algorithms then transcribe them into a faster language such as C++. That way you get the best of both languages. I take it that you're a C sharp developer? Have you ever programmed robots using C sharp? What was your experience like?
@Liuk78
@Liuk78 9 месяцев назад
@@AdvancedHobbyLab no I m not developer . I studied Python beginner but I m suggested to study c sharp for future . I m mechanical designer , i like apr and robot dog
@bogomoviltdt
@bogomoviltdt 6 месяцев назад
Hello, interesting work, had you published the code?
@AdvancedHobbyLab
@AdvancedHobbyLab 6 месяцев назад
Thank for the support! You can find the GitHub repo: github.com/AdvancedHobbyLab/SpotMicro/tree/main
@Bemoldiyezoglu
@Bemoldiyezoglu 2 месяца назад
Is MG995 servo motor is good for this robot?
@AdvancedHobbyLab
@AdvancedHobbyLab 2 месяца назад
You have to make sure the voltages match. Most servos are only rated for 5V. In this build, I used 7.4V directly from the 2S lipo. You also have to make sure the servo horns match. I used the parts for "SpotMicro V2" that uses PDI-6221MG servos so it won't fit MG995 servos.
@Bemoldiyezoglu
@Bemoldiyezoglu 2 месяца назад
@@AdvancedHobbyLab Thanks
@spanishjo4282
@spanishjo4282 5 месяцев назад
How much to but one robot dog costing? US$1000?
@AdvancedHobbyLab
@AdvancedHobbyLab 5 месяцев назад
It cost me maybe US $250. The biggest cost was the servos. I already had my own 3D printer so making the parts was cheap.
@rehanperera3356
@rehanperera3356 3 месяца назад
can you please share the code
@AdvancedHobbyLab
@AdvancedHobbyLab 3 месяца назад
Yes. You can find the code here: github.com/AdvancedHobbyLab/SpotMicro
@anshugaming679
@anshugaming679 7 месяцев назад
Brothee its cool but where is code of arduino
@AdvancedHobbyLab
@AdvancedHobbyLab 7 месяцев назад
I'm glad you like it, however, I have no plans to use an arduino. You can find the github repo here: github.com/AdvancedHobbyLab/SpotMicro/tree/main. The code is written in Python, but perhaps it could help you with arduino code.
@42-sudharshan.b23
@42-sudharshan.b23 7 месяцев назад
deaminations of leg
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