Introduction

My name is Ryosuke Kamei and I am an IT consultant based on the idea of "gentle IT"! Currently, in my work, I am doing upstream processes focusing on requirements analysis and requirements definition, but I also write programs! As part of our friendly IT activities, we will introduce "Raspberry Pi 3" (commonly known as Raspberry Pi), which has the philosophy of "providing inexpensive PCs that can be programmed for education"! This time, we will detect the control of the switch. [Razpai Magazine-June 2016 Special Feature 1 Akiba's Popular Parts Wiring Diagram Best 17 ③ Slide Switch](https://www.amazon.co.jp/ Razpai Magazine-June 2016 Issue-Nikkei BP PC Best Mook -? Nikkei Linux-ebook / dp / B01EH2RX42 / ref = as_li_ss_tl ie = UTF8 & dpID = 61P3o6Agz + L & dpSrc = sims & preST = OU09__BG0,0,0,0_FMpng_AC_UL160_SR120,160 & psc = 1 & refRID = 31SKG5E0DGKBSF9BWNGV & linkCode = ll1 & tag = sr2smail-22 & linkId = 18fd04738627edef8d6fffd6c9b8f9c2) reference I am doing it. Let's suppress the switch that is the basis of input and apply it to make something interesting ~

procedure

Wiring
Program slide_switch.py
Run the program

1. Wiring

The wiring diagram is [Razpai Magazine-June 2016 Issue Special Feature 1 Akiba's Popular Parts Wiring Diagram Best 17 ③ Slide Switch](https://www.amazon.co.jp/ Razpai Magazine-June 2016 Issue) -Nikkei BP PC Best Mook-Nikkei Linux-ebook / dp / B01EH2RX42 / ref = as_li_ss_tl? Ie = UTF8 & dpID = 61P3o6Agz + L & dpSrc = sims & preST = _OU09__BG0,0,0,0_FMpng_AC_UL160_SR120,0_FMpng_AC_UL160_SR120 18fd04738627edef8d6fffd6c9b8f9c2) As it is.

If you get an image like this, referring to the picture of the circuit Raspberry Pi 3でpythonを使いスライドスイッチを検出する！回路.jpg

I also made a video

Text version

--Raspberry Pi Pin 1 (3.3V) --Slide switch left --Raspberry Pi 11th pin (GPIO17) --Resistance 1kΩ --Slide switch center --Raspberry Pi 6th pin (GND) --Slide switch right

2. Program slide_switch.py

Program is also [Razpai Magazine-June 2016 Issue Special Feature 1 Akiba's Popular Parts Wiring Diagram Best 17 ③ Slide Switch](https://www.amazon.co.jp/ Razpai Magazine-June 2016 Issue-Nikkei BP PC Best Mook -? Nikkei Linux-ebook / dp / B01EH2RX42 / ref = as_li_ss_tl ie = UTF8 & dpID = 61P3o6Agz + L & dpSrc = sims & preST = OU09__BG0,0,0,0_FMpng_AC_UL160_SR120,160 & psc = 1 & refRID = 31SKG5E0DGKBSF9BWNGV & linkCode = ll1 & tag = sr2smail-22 & linkId = 18fd04738627edef8d6fffd6c9b8f9c2) I referred to. Almost as it is.

The source is uploaded to GitHub, so please use it as you like.

`Clone with git`


$ git clone https://github.com/RyosukeKamei/raspberrypi3.git

`slide_switch.py`


#Library to control GPIO
import wiringpi
#Timer library
import time

#GPIO terminal settings
switch_pin = 17

#Set GPIO output mode to 1
wiringpi.wiringPiSetupGpio()
#GPIO input mode(0)To
wiringpi.pinMode( switch_pin, 0 )

while True:
    #Read the state of GPIO terminal
    # 0V : 0
    # 3.3V : 1
    if( wiringpi.digitalRead(switch_pin) == 1 ):
        print ("Switch ON")
    else:
        print ("Switch OFF")
    #Detected every second
    time.sleep(1)

3. Run the program

I recorded the video of how it is moving.

`Switch detected`


$ sudo python3 slide_switch.py

The status of the switch is displayed every second! (See the video for details!)

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Detect slide switches using python on Raspberry Pi 3!