Lesson 13 - Connecting Motors To Jetson Nano GPIO

[@anddop]

Sir thank you so much for explaining this very well

[@CodingScientist]

@@anddop you are welcome

[@nhatphongtran86]

excellent video and explanation

[@rodriguezgascasebastian5589]

Love your content !!! Thanks for the knowledge !

[@jnanasaisree114]

is it possible to follow the same connections it for the dc geared motor? if not what is the other approach

[@CodingScientist]

@@jnanasaisree114 Yes possible

[@enochsoyinka5153]

Is it not possible to use the gpio pin on the jetson nano directly

[@CodingScientist]

@@enochsoyinka5153 Yes you can

[@Vijay-jv7gg]

Is it possible to connect 3 stepper motor drivers to a single jetson nano? Or do we need individual jetson nano's for each stepper motor drivers ?

[@CodingScientist]

You can connect upto 999 motors using ULN2003A driver, if you want to use any other motors like Servo then you need to use PCA9685 for PWM signal

[@teocrito1966]

Hi, I am happy I have found this nice tutorial good explained. So I have tested it with a fresh installation ( Version: 4.6.1-b110 ) on my Jetson Nano, but it has an error with command: sudo pip3 install adafruit-circuitpython-servokit Jetson answers: Collecting Adafruit-Blinka>=7.0.0 (from adafruit-circuitpython-servokit) Could not find a version that satisfies the requirement Adafruit-Blinka>=7.0.0 (from adafruit-circuitpython-servokit) (from versions: 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7, 0.1.8, 0.1.9, 0.1.10, 0.2, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.2.7, 0.3.0, 0.3.1, 0.3.2, 0.4.0, 1.0.2, 1.1.0, 1.1.1, 1.2.0, 1.2.1, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.6, 2.2.0, 2.2.1, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.6.0, 2.6.1, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.1.0, 3.1.1, 3.1.2, 3.2.0, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.3.6, 3.3.7, 3.3.8, 3.3.9, 3.3.10, 3.4.0, 3.4.1, 3.5.0, 3.5.1, 3.5.2, 3.6.0, 3.6.1, 3.7.0, 3.7.1, 3.8.0, 3.9.0, 3.10.0, 4.0.0, 4.1.0, 4.2.0, 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, 4.8.1, 4.9.0, 4.10.0, 4.10.1, 5.0.0, 5.0.1, 5.1.0, 5.2.0, 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.4.0, 5.4.1, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.6.0, 5.7.0, 5.8.0, 5.8.1, 5.8.2, 5.9.0, 5.9.1, 5.9.2, 5.10.0, 5.11.0, 5.12.0, 5.13.0, 5.13.1, 6.0.0, 6.0.1, 6.0.2, 6.1.0, 6.2.0, 6.2.1, 6.2.2, 6.3.0, 6.3.1, 6.3.2, 6.4.0, 6.4.1, 6.4.2, 6.5.0, 6.6.0, 6.6.1, 6.6.2, 6.7.0, 6.8.0, 6.8.1, 6.8.2, 6.8.3, 6.9.0, 6.9.1, 6.9.2, 6.10.0, 6.10.1, 6.10.2, 6.10.3, 6.11.0, 6.11.1, 6.12.0, 6.13.0, 6.13.1, 6.14.0, 6.14.1, 6.15.0) No matching distribution found for Adafruit-Blinka>=7.0.0 (from adafruit-circuitpython-servokit) Can you please tell me if this error is because of the version of the jetpack ? What version of jetpack have you used ? Thank you

[@CodingScientist]

Looks like your JP version is not compatable, try using JP 4.3

[@SoulfulAish]

@teocrito1966 did it work for you?

[@436manish4]

Hi, thanks for the info can i use two roboclaw 2aX7 through gpio

[@CodingScientist]

Yes possible

[@GregKeane]

GREAT video!!!! Can the PCA9685 run hoverboard motors? inhub wheels - 36v - 350watt

[@CodingScientist]

Yes, but that will need additional circuitary and power modules

[@rtrewrt]

hello, i can see the 0x40 default address and the code and wiring has no issues but my servos dont seem to work. my servos are not faulty as they work with arduino perfectly. I am trying to make it work with a jetson nano and a pca9685. Can you help as fast as possible?

[@CodingScientist]

Pls check the Jetson pin configuration

[@pottoker612]

could i connect a nema23 stepper motor to the jetson nano using this method? and control the stepper motor automatically using python when connected?

[@CodingScientist]

Yes you can but you will need stepper driver

[@pottoker612]

​@@CodingScientist i plan on using a linear actuator lead screw(slide rail w/ mount plate) with a nema23 motor and a yahboom 6dof robot arm attached. the jetson nano on the robot arm will tell the motor when to move, it will be mounted vertically, on a wall

[@CodingScientist]

@@pottoker612 Great 👍

[@fablapp]

txs very clear.... i think I have rigged all the pins correctly, but I get a strange message when I run the code in python: exiting Cleaning pins. any idea what can be?

[@CodingScientist]

Looks like ur gpio pins are blocked, you will have to redo with fresh OS copy

[@fablapp]

@@CodingScientist txs for the quick answer.... will this help? also I noticed you have managed to control the servos with no externalpower supply. I have niticed other people suggest to externally supply the 5 volt forthe board. any comment?

[@CodingScientist]

@@fablapp yes external power helps

[@fablapp]

@@CodingScientist txs again for being so responsive. Will definitely follow your material more commonly. could you consider to expand on the external power supply aspect. Have given a try but realized that without a direct 5V from the jetson the servos are unresponsive.

[@CodingScientist]

@@fablapp you may use 5amp adapter which can supply sufficient power through GPIO to drive the motors

[@vipinpachouri4766]

How to control dc motor with encoder?

[@CodingScientist]

Through specific circuit connected to motor driver and the encoders analog pins to be fed into a microcontroller like Arduino which communicates with Jetson via serial. Finally the commands can be either in C++ or Python running on Jetson