Differences

This shows you the differences between two versions of the page.

--- raspi_lahendused [2014/05/15 13:23] – created raivo.sell
+++ raspi_lahendused [2020/07/20 09:00] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ==== Lahendused ====
+=== LED vilgutamine ===
+LED vilguks 1 sek. intervalliga
+<code c>
+import RPi.GPIO as GPIO
+import time
+ledPin = 11
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(ledPin, GPIO.OUT)
+while True:
+    time.sleep(1)
+    GPIO.output(ledPin, True)
+    time.sleep(1)
+    GPIO.output(ledPin, False)
+</code>
+vastavalt kasutaja sisestatud väärtusele 0 või 1 juhitakse LED-i.
+<code c>
+import RPi.GPIO as GPIO
+ledPin = 11
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(ledPin, GPIO.OUT)
+while True:
+    input_var = input("Enter LED state: ")
+    if input_var == 1:
+    	GPIO.output(ledPin, True)
+    elif input_var == 0:
+    	GPIO.output(ledPin, False)
+    else:
+	print "Unknown command!"
+</code>
+oleks graafiline kasutajaliides, millega saab LED sisse-välja lülitada
+<code c>
+import RPi.GPIO as GPIO
+ledPin = 11
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(ledPin, GPIO.OUT)
+import Tkinter as tk
+class Application(tk.Frame):
+    def __init__(self, master=None):
+        tk.Frame.__init__(self, master)
+        self.pack()
+        self.createWidgets()
+    def createWidgets(self):
+        self.led_on = tk.Button(self)
+        self.led_on["text"] = "ON"
+        self.led_on["command"] = self.turn_led_on
+        self.led_on.pack(side="top")
+	self.led_off = tk.Button(self)
+        self.led_off["text"] = "OFF"
+        self.led_off["command"] = self.turn_led_off
+        self.led_off.pack(side="top")
+        self.QUIT = tk.Button(self, text="SULGE", fg="red",command=root.destroy)
+        self.QUIT.pack(side="bottom")
+    def turn_led_on(self):
+        GPIO.output(ledPin, True)
+    def turn_led_off(self):
+        GPIO.output(ledPin, False)
+root = tk.Tk()
+app = Application(master=root)
+root.geometry("250x150+300+300")
+app.mainloop()
+</code>
+=== Valvenäide ===
+uus rida tuleb ainult oleku muutuse peale
+<code c>
+import RPi.GPIO as GPIO
+import time
+sensorPin = 7
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(sensorPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+prevState = False
+currState = False
+while True:
+    time.sleep(0.1)
+    prevState = currState
+    currState = GPIO.input(sensorPin)
+    if currState != prevState:
+        newState = "HIGH" if currState else "LOW"
+        print "GPIO pin %s is %s" % (sensorPin, newState)
+</code>
+lisatakse reale kuupäev ja kellaaeg, ning tulemus kirjutatakse log-i faili.
+<code c>
+import RPi.GPIO as GPIO
+import time
+import datetime
+sensorPin = 7
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(sensorPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+prevState = False
+currState = False
+f = open('andur.log', 'w',0)
+while True:
+    time.sleep(0.1)
+    prevState = currState
+    currState = GPIO.input(sensorPin)
+    if currState != prevState:
+        newState = "1" if currState else "0"
+        aeg=datetime.datetime.now()
+        print "%s, %s" % (aeg,newState)
+        #f.write(str(aeg)+","+newState+'\n')
+        f.write(newState+'\n')
+ </code>

raspi_lahendused.1400160228.txt.gz · Last modified: 2020/07/20 09:00 (external edit)