Raspberry Pi 3 Tutorial: Connecting Breadboard and LEDs HD

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-install/ 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 @brianguy_cloud on Twitter.