Скачать или смотреть Raspberry Pi 3 Tutorial: Connecting Breadboard and LEDs

This video demonstrates how to attach a breadboard to a Raspberry Pi 3 with optional touchscreen. LED lights are then installed on the breadboard and turned on/off via the WiringPi software.

Hardware tips:
Disconnect power to your Raspberry Pi before attempting this tutorial.
Do not connect LEDs directly to the breadboard rows that are already in use by the T cobbler. Use the lower rows that are free.
The positive pin (longer leg) of the LED connects in the same numbered row (different letter) as the jumper wire.
The negative pin (shorter leg) of the LED connects in the same numbered row (different letter) as one end of the resistor.
The other end of the resistor connects in the negative column on the edge of the breadboard (any row).
The other end of the jumper wire connects in the same row (any lettered column) as the desired GPIO pin as indicated on the T cobbler.

Example pins:
Connect LED 1 positive leg to breadboard row 30, column E
Connect LED 1 negative leg to breadboard row 29, column E
Connect LED 2 positive leg to breadboard row 28, column E
Connect LED 2 negative leg to breadboard row 27, column E
Connect LED 3 positive leg to breadboard row 26, column E
Connect LED 3 negative leg to breadboard row 25, column E
Connect Resistor 1 leg 1 to breadboard row 29, column C
Connect Resistor 1 leg 2 to breadboard 3V negative column, any unused row
Connect Resistor 2 leg 1 to breadboard row 27, column C
Connect Resistor 2 leg 2 to breadboard 3V negative column, any unused row
Connect Resistor 3 leg 1 to breadboard row 25, column C
Connect Resistor 3 leg 2 to breadboard 3V negative column, any unused row
Connect Jumper 1 end 1 to breadboard row 30, column A
Connect Jumper 1 end 2 to the breadboard row that aligns with GPIO 17 (pin 11) on the T cobbler, column C
Connect Jumper 2 end 1 to breadboard row 28, column A
Connect Jumper 1 end 2 to the breadboard row that aligns with GPIO 27 (pin 13) on the T cobbler, column C
Connect Jumper 3 end 1 to breadboard row 26, column A
Connect Jumper 1 end 2 to the breadboard row that aligns with GPIO 22 (pin 15) on the T cobbler, column C

To install WiringPi, follow the instructions at http://wiringpi.com/download-and-inst...

To change the orientation of the Raspberry Pi Touchscreen and to flip it upside down, add the following line to /boot/config.txt:

lcd_rotate=2

The commands to control the LEDs are as follows.

To set the pins to Output mode:
gpio -g mode 17 out
gpio -g mode 27 out
gpio -g mode 22 out

To turn the LEDs on:
gpio -g write 17 1
gpio -g write 27 1
gpio -g write 22 1

To turn the LEDs off:
gpio -g write 17 0
gpio -g write 27 0
gpio -g write 22 0

Note: the ending 2 in the “gpio -g write 22 2” command in the video is a typo.

Check http://blog.brianguy.com for additional notes.
Follow @brianguy24601 on Twitter.