Information for controlling the motor with Python on RaspberryPi
This is also an article under investigation.
Everyone's Raspberry Pi Introductory Motor Kit
https://www.switch-science.com/catalog/2217/
Contents DC motor * Soldering required 2 copper wires Dual motor driver (TB6612FNG) * Soldering required Battery box Stepping motor (SPG27-1702) Transistor array (TD62783APG) Mini servo motor Pin header 1x40
Book ["Introduction to Raspberry Pi for Everyone, 2nd Edition [Supported Languages: Python](Rick Telecom's Electronic Work Series)"]
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(http://www.amazon.co.jp/%E3%81%BF%E3%82%93%E3%81%AA%E3%81%AERaspberry-Pi%E5%85%A5%E9%96%80-%E7%AC%AC%EF%BC%92%E7%89%88-%E5%AF%BE%E5%BF%9C%E8%A8%80%E8%AA%9E-%E3%83%AA%E3%83%83%E3%82%AF%E3%83%86%E3%83%AC%E3%82%B3%E3%83%A0%E3%81%AE%E9%9B%BB%E5%AD%90%E5%B7%A5%E4%BD%9C%E3%82%B7%E3%83%AA%E3%83%BC%E3%82%BA/dp/4897979943)
Since it is a set that includes different types of motors such as DC motors, stepper motors, and mini servo motors, motor beginners will be able to start by knowing what each motor is.
(DC motor: This is usually used for science experiments in elementary and junior high schools. It turns just by connecting it to a power source. (The DC motor has no way to know how much it turns and is in the desired position. .) Stepping motor: A motor that controls the rotation position of the motor in small steps. It is often used in a controlled system without disturbance (it seems).
)
Check the GPIO control method of Raspberry Pi (Circuit assembly part 1)
https://tool-lab.com/2013/12/raspi-gpio-controlling-breadboard-1/
24th Control GPIO of Raspberry Pi (Command Edition)
https://tool-lab.com/make/raspberrypi-startup-24/
26th Control GPIO of Raspberry Pi (Python edition)
https://tool-lab.com/make/raspberrypi-startup-26/ The article by "Tool Lab" politely wrote about GPIO.
Turn SPG20-1332 (Note: stepper motor) on Raspberry Pi
http://eleclog.quitsq.com/2012/12/raspberry-pi-spg20-1332.html
To control the output of GPIO system("echo "7" > /sys/class/gpio/export"); And so on, the value is written by echo to a specific device file of Raspberry Pi.
Control the stepping motor with Raspberry pi and play music
http://yamaguchi-1024.hatenablog.com/entry/2015/12/04/234242
Stepping motor ST-42BYG020 Stepping Motor Driver Kit (part of)
Written in a way that uses GPIO in Python.
Verify the hardware performance and software support of the new Raspberry Pi robotics board!
http://www.rs-online.com/designspark/electronics/jpn/nodes/view/type:blog/slug:an-introduction-to-the-gertbot
Gertbot Robotics Board for Raspberry Pi
5 things you want to try with the cheap Linux board "Raspberry Pi" and the new model "B +"
http://japan.zdnet.com/article/35050936/
Raspberry Pi GPIO input / output sample (Python, C language, shell script)
http://netlog.jpn.org/r271-635/2013/01/raspberry_pi_gpio_test.html First, looking at the shell script, using GPIO as output is /sys/class/gpio/ You can see that the value is written to the following device file.
Looking at the C language hierarchy, in order to use the unique IO function of the chip BCM 2835, You can see that it uses a unique function. GPIO and other IO functions on the Broadcom BCM 2835 chip [C library for Broadcom BCM 2835 as used in Raspberry Pi] (http://www.airspayce.com/mikem/bcm2835/)
Seen from the Python language hierarchy import RPi.GPIO RPi.GPIO However, it hides a lot of troublesome processing that can be seen in C language, and you can see that it is easy to handle. The RPi.GPIO site states the following notes.
Note that this module is unsuitable for real-time or timing critical applications. This is because you can not predict when Python will be busy garbage collecting.
Keep in mind that this module is not suitable for real-time or time-critical applications. You can't predict when Python will be busy with the Garage Collection. BCM2835 SOC and Raspberry Pi It relies heavily on GPIOs on other ARM-based Linux boards and should not work.
Control figures with Raspberry Pi
An example of motor control with Raspberry Pi
[VOLKS INC. And Species Co., Ltd. have developed "Moving Doll: Dollfie (R) Honey", which is an industry standard 60cm doll made by Volks Co., Ltd. that is moved by moving figure technology. ] (http://www.dreamnews.jp/press/0000124132/) [(A) Dollfie(R) Honey: 60cm 28DOF Motional doll equipped with LINUX and MikuMikuDance] (https://www.youtube.com/watch?v=QhfxQWWfnk4&feature=youtu.be) (one of the YouTube images)
had. One of the YouTube links is a video with a structure that allows you to see the contents of the pedestal. It is interesting to see how to control the large number of control axes. If you follow the link of the developer Species Co., Ltd. http://robo-pro.com/MOFI/strategy.html I arrived at. You can see how the wire controls the doll.
Species article 2016/09/01 [Moving "Hatsune Miku" doll, produced by former AIBO developers and unveiled at the event in September](http://www.itmedia.co.jp/news/articles/1609/ 01 / news125.html)
Equipped with a small computer "Raspberry Pi 3", Linux runs. You can also create your own motion with MikuMikuDance (MMD).
And that.
[Operate the drone with Raspberry Pi! ?? Flight controller "NAVIO +"]
(http://www.borg.media/raspberry-pi-navio/)
NAVIO + is programmed in C ++ and Python The source code is available on GitHub here.
The board for motor control is sold by RS Components, the distributor of Raspberry Pi. Use it by connecting to Raspberry Pi. The GPIO voltage of the Raspberry Pi itself is 3.3V, and although there is a limit to the voltage and current supply of the power supply, it can supply a larger voltage.
[Gertbot Robotics Board for Raspberry Pi] (http://jp.rs-online.com/web/p/processor-microcontroller-development-kits/8486806/)
12V power supply
Page on Raspberry Foundation GERTBOT IS HERE!
RTK MOTOR CONTROLLER BOARD KIT FOR RASPBERRY PI https://docs.google.com/document/d/1Rfw2yCGLgT9BpKVBv3TBlHxGVVSL7cA8nhG0zy4hb0A/edit?pli=1#heading=h.urtsts8c9n0t
SMALL REDUCTION STEPPER MOTOR - 5VDC 32-STEP 1/16 GEARING https://www.adafruit.com/products/858
** BeagleBone Black GPIO **
[Play with BeagleBone Black-GPIO] (http://www.sugakoubou.com/doku/bbb)
BeagleBoneBlack [4] – Expansion connector GPIO control –
BeagleBone Black Series: Get Interrupts Through Linux GPIO
Use BeagleBone Black GPIO from python
BeagleBoneBlack Python L Chika
How common is GPIO with other ARM-based Linux boards?
** Armadillo GPIO **
http://manual.atmark-techno.com/armadillo-4x0/armadillo-460_startup_guide_ja-1.0.5/ch08.html#sec-GPIO [armadillo ~]# echo 1 > /sys/devices/virtual/gpio/CON9_2/value It seems that it is common to be able to set the value in such a way.
It seems possible to install Python on Armadillo Armadillo-IoT: Add Python to Userland https://users.atmark-techno.com/blog/53/1349
In this article, I used debian to install Python on Armadillo, put PIP (python-pip) with apt-get, and I'm installing Pyserial using PIP.
Armadillo-X1 Announced in 2016
Zynq(Xilinx)
Find out about Zynq, an ARM device that can use FPGAs. Zynq is also available on Linux. Besides GPIO EMIO(extended multiplexed I/O) and so on.
[Controlling the LED connected to MIO with Linux on Zynq-7000 (ZC702)] (http://marsee101.blog19.fc2.com/blog-entry-2203.html) The source code of C is described.
[Connect a GPIO circuit to ZYNQ and accept interrupts on Linux (Part 2)] http://myokota.hatenablog.jp/entry/2015/08/12/233020
for i in `seq 898 901`; do
echo 1 > /sys/class/gpio/gpio$i/value
done
This is an example of a board using Zynq. ZYBO Zynq-7000 Evaluation Board
Xillybus and ROS on Ubuntu14.04 on Zybo Part 4: Settings on Zybo ~ Installing ROS
Cyclone V SoC(Altera)
"Connecting a DC motor to the Altera SoC evaluation board Helio"
Helio board article "[No. 8] How to create remote PWM control, motor control, and startup script with a network application"
Book "ARM Cortex-A9 × 2! One-chip Linux on FPGA with Zynq"
Book ["FPGA Magazine No.7 From brushing to stepping! Making the first control circuit Motor & Robot x FPGA "] (http://www.kumikomi.net/fpga/contents/0007.php)
Postscript: It's not just about Raspberry PI or Python, The next book will give you a better understanding of the various parts. Book "Robocon Parts Guidebook" edited by Ohmsha
Unorganized postscript: PWM (Pulse Width Modulation) is used in the servo motor. Therefore, I am investigating an article related to output in PWM.
What is "PWM", an indispensable technology for motor control? (1/3) https://www.switch-science.com/catalog/2181/
Adafruit 16 Channel PWM / Servo HAT for Raspberry Pi https://www.switch-science.com/catalog/2181/
Control two DC motors with Raspberry Pi 2 http://kaiware007.hatenablog.jp/entry/2015/07/15/014119
GPIO on Raspberry Pi http://ag.hatenablog.com/entry/2015/07/31/013013
"Interface" has a special feature. -["Interface May 2016 Human Assist / Robo / EV / Drone Key Technology Experience for the First Time with a 5,000 Yen Kit! Free Torque! Latest Motor Control"](http://www.kumikomi.net/interface /contents/201605.php)
Jetson (Tegra board)
> sudo python ~/lab/gpio/advanced_blink.py However, I was able to confirm that the LED blinks only while the contact switch is pressed.
-Embedded board "NVIDIA Jetson TX1" that realizes "small artificial intelligence that keeps learning"
Deep learning function of Jetson TX1 development kit
I also tried signboard detection with Jetson TX1
Appendix
In the case of RaspberryPi, just plug in the USB memory and it will be mounted automatically. Moreover, you can easily unmount the USB memory from the GUI. So developing on a Raspberry Pi is easy, especially for python scripts. If you create a script that runs on Windows, copy it to a USB memory, and plug it into the Raspberry Pi, it's very easy to run it on the Raspberry Pi. Most of the missing libraries can be obtained by apt-get, so portability is good. To do this, use spyder on windows to pylint in advance for good portability. Save the script in UTF8. Make sure to use "/" instead of r "" to separate directories. It seems to be good to avoid troubles by not displaying multi-byte code such as Japanese code when executing the program on the console. It may not be the expected behavior due to reasons such as the font of the console display.
I think it's safe.
Embedded CPU boards tend to have fewer opportunities to get the board and operate it. Moreover, CPU boards that have sufficient information on the development environment and development examples tend to be limited. RaspberryPi is easy to obtain, has a complete development environment, and there is a lot of information on development cases on the web. Therefore, it is a very easy board to start embedded programming.
Appendix
Let's find out about ROS (Robot Operating System)
I wrote.
Why you are interested in motor control in Python http://qiita.com/nonbiri15/items/c911e327faec3d43a0b4 I wrote.
I'm starting to worry about a computer with built-in Wi-Fi and Linux called Omega2
The interface is featured. "Interface May 2016 Issue" Experience the key technology of human assist / robot / EV / drone for the first time with a 5,000 yen kit! Free torque! Latest motor control "
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