Added RPI GPIO

Author: grahamgamedev

RPI GPIO/PI ZERO OVERCLOCK.txt

@@ -0,0 +1,32 @@
+
+Keeping your Pi cool is key when overclocking
+
+
+Basic overclock
+
+arm_freq=1000
+gpu_freq=500
+core_freq=500
+sdram_freq=500
+sdram_schmoo=0x02000020
+over_voltage=2
+sdram_over_voltage=2
+
+
+Advance Overclock
+
+arm_freq=1050
+gpu_freq=500
+core_freq=500
+sdram_freq=500
+sdram_schmoo=0x02000020
+over_voltage=2
+sdram_over_voltage=2
+
+
+after we boot back up we can see if the overclock worked
+
+Press F4 on your keyboard while running RetroPie and type in this command
+
+cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
+

RPI GPIO/RPI USB ethernet.txt

@@ -0,0 +1,23 @@
+config: dtoverlay=dwc2
+cmdline: modules-load=dwc2,g_ether
+file: ssh
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

RPI GPIO/aliases.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo "" >> ~/.bashrc
+echo "# py = python3 interactive mode" >> ~/.bashrc
+echo "alias py='python3 -i'" >> ~/.bashrc
+

RPI GPIO/create.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+touch $1
+chmod 775 $1
+nano $1

RPI GPIO/gpio.py

@@ -0,0 +1,33 @@
+from gpiozero import LED, Button
+from time import sleep
+choice = input("Do you want full controll? ")
+
+led1 = LED(17)
+led2 = LED(27)
+led3 = LED(22)
+
+led1.on()
+led2.on()
+led3.on()
+input("Press enter to continue. ")
+led1.off()
+led2.off()
+led3.off()
+
+button1 = Button(20)
+button2 = Button(21)
+
+def blink1():
+    led1.blink(1,2)
+
+
+def blink2():
+    led2.blink(0.1,0.5)
+
+
+while choice != "yes":
+    button1.when_pressed = blink1
+    button1.when_released = blink2
+    button2.when_pressed = led1.off
+    button2.when_released = led2.off
+    sleep(1)

RPI GPIO/rpi leds.fzz

@@ -0,0 +1,7 @@
+LED1 GPIO 17
+LED2 GPIO 27
+LED3 GPIO 22
+
+Button1 GPIO 21
+Button2 GPIO 20
+GND

RPI GPIO/rpi leds.txt

@@ -0,0 +1,33 @@
+from gpiozero import LED, Button
+from time import sleep, time
+
+led1 = LED(17)
+led2 = LED(27)
+led3 = LED(22)
+
+button1 = Button(20)
+button2 = Button(21)
+
+print("Active")
+led1.on()
+led2.off()
+led3.off()
+
+def start():
+    print("Started")
+    led3.blink(0.5, 0.5)
+    global before
+    before = time()
+
+def stop():
+    print("Stoped")
+    led3.off()
+    after = time()
+    print(str(round(after - before,2))+" S")
+    print("")
+
+while True:
+    button1.when_pressed = start
+    button2.when_pressed = start
+    button1.when_released = stop
+    button2.when_released = stop

RPI GPIO/rpi leds_bb.jpg

@@ -0,0 +1,45 @@
+from gpiozero import LED, Button
+from time import sleep
+
+red = LED(17)
+amber = LED(27)
+green = LED(22)
+
+button1 = Button(20)
+button2 = Button(21)
+
+green.on()
+amber.off()
+red.off()
+
+def stop():
+    print("stop")
+    green.off()
+    amber.on()
+    sleep(1)
+    amber.off()
+    red.on()
+
+def go():
+    print("go")
+    amber.on()
+    red.off()
+    sleep(1)
+    green.on()
+    amber.off()
+
+def man():
+    print("manual mode")
+    state = ""
+    while state != "man":
+        state = input("go or stop? ")
+        if state == "go":
+            go()
+        elif state == "stop":
+            stop()
+
+while True:
+    button2.when_pressed = go
+    button2.when_released = stop
+    button1.when_pressed = man
+    sleep(1)