init commit

4 years ago · 75e880b1e1
8 changed files with 192 additions and 0 deletions
--- a/analogSensor.py
+++ b/analogSensor.py
@ -0,0 +1,13 @@
+from gpiozero import MCP3008
+from time import sleep
+
+#remember to enable SPI in raspi-config > interfaces before you run this the first time
+
+#How to wire the MCP3008: https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008
+#gpiozero documentation about MCP3008: https://gpiozero.readthedocs.io/en/stable/api_spi.html
+
+ldr = MCP3008(channel=0, device=0)
+
+while True:
+    print(ldr.value)
+    sleep(0.01)
--- a/distanceSensor.py
+++ b/distanceSensor.py
@ -0,0 +1,15 @@
+from gpiozero import DistanceSensor
+from time import sleep
+
+#https://gpiozero.readthedocs.io/en/stable/recipes.html#distance-sensor
+
+sensor = DistanceSensor(
+        echo=19, 
+        trigger=26, 
+        max_distance=4,
+        queue_len=5)
+
+while True:
+    print('distance', sensor.distance * 100)
+    sleep(0.5)
+
--- a/ldrLed.py
+++ b/ldrLed.py
@ -0,0 +1,32 @@
+#remember to enable SPI in raspi-config > interfaces before you run this the first time
+
+#How to wire the MCP3008:
+#https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008
+
+#gpiozero about MCP3008: 
+#https://gpiozero.readthedocs.io/en/stable/api_spi.html
+
+#gpiozero tools to modify values:
+#https://gpiozero.readthedocs.io/en/stable/_modules/gpiozero/tools.html
+
+from gpiozero import MCP3008, PWMLED
+from gpiozero.tools import clamped, smoothed, scaled
+from time import sleep
+
+ldr = MCP3008(channel=0, device=0)
+
+led = PWMLED(17)
+
+while True:
+    reading = smoothed(ldr,3) #smooth samples
+    
+    value = scaled(reading, 0,1.0,0.01,0.5) #scale samples
+    
+    brightness = clamped(value,0,1.0) #clamp samples
+
+    for i in brightness:
+        if i < 0.15:
+            i = 0
+        print(i)
+        led.value = i
+
--- a/remoteGpioFromHome.py
+++ b/remoteGpioFromHome.py
@ -0,0 +1,28 @@
+import sys
+from gpiozero import PWMLED
+from gpiozero.pins.pigpio import PiGPIOFactory 
+from signal import pause
+from time import sleep
+
+#If you are working on MacOS or linux make an ssh tunnel first:
+#ssh -L 8888:localhost:8888 kanelbulle
+factory = PiGPIOFactory(host='localhost')
+
+#If you are working on Windows:
+#first ask Roel to open a port in the interaction.tools firewall for you
+#then 
+#factory = PiGPIOFactory(host='kanelbulle.interaction.tools', port=8889)
+
+led = PWMLED(17, pin_factory=factory)
+
+while True:
+	try:
+		for i in range(0,10): 
+		    a = float(i/10) 
+		    led.value = a 
+		    sleep(0.1) 
+		    print(a)
+	except KeyboardInterrupt:
+		led.close()
+		sys.exit()
+
--- a/remoteGpioFromPi.py
+++ b/remoteGpioFromPi.py
@ -0,0 +1,21 @@
+import sys
+from gpiozero import PWMLED
+from gpiozero.pins.pigpio import PiGPIOFactory 
+from signal import pause
+from time import sleep
+
+#This code is meant to be run FROM a Pi connected to the interaction.tools network
+#It allows you to read/write Pins from other PIs on the network
+
+bobPi = PiGPIOFactory(host='10.10.10.25')
+alicePi = PiGPIOFactory(host='10.10.10.26')
+
+led = LED(17)
+
+button_alice = Button(17, pin_factory=bobPi)
+button_bob = Button(17, pin_factory=alicePi)
+
+led.source = all_values(button_alice, button_bob)
+
+pause()
+
--- a/servo.py
+++ b/servo.py
@ -0,0 +1,29 @@
+from gpiozero import Servo
+from time import sleep
+
+# https://gpiozero.readthedocs.io/en/stable/recipes.html#servo
+
+
+#these pulse-width values come from the elektrobit product description
+maxPW=2.1/1000
+minPW=0.9/1000
+
+# these values are empirically determined and represent maxima
+# 0.3 will turn slow in one direction, -0.5 slow in the other
+left = 1
+right = -1
+stop = -0.2
+
+servo = Servo(
+        17, 
+        initial_value=None, 
+        min_pulse_width=minPW, 
+        max_pulse_width=maxPW)
+
+while True:
+    servo.value = left
+    sleep(1)
+    servo.value = right
+    sleep(1)
+    servo.value = stop
+    sleep(2)
--- a/templates/index.html
+++ b/templates/index.html
@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>LEDS!</title>
+</head>
+<body>
+
+<form action="/on/" method="post">
+    <button name="forwardBtn" type="submit">On</button>
+</form>
+
+<form action="/off/" method="post">
+    <button name="forwardBtn" type="submit">Off</button>
+</form>
+
+<p>{{led_status}} </p>
+
+</body>
+</html>
+
--- a/webLed.py
+++ b/webLed.py
@ -0,0 +1,34 @@
+from flask import Flask, render_template, Response, request, redirect, url_for
+from gpiozero import LED
+
+#This sketch allows you to control an LED from the browser.
+#When you run the sketch navigate to yourpi.interaction.tools:8000 to try it
+
+led = LED(17)
+
+app = Flask(__name__)
+
+@app.route("/")
+def index():
+    return render_template('index.html', led_status="Press 'on' or 'off'")
+
+@app.route("/on/", methods=['POST'])
+def turn_led_on():
+    
+    led.on()
+    led_status = 'LED is on'
+
+    #Return the page result
+    return render_template('index.html', led_status=led_status)
+
+@app.route("/off/", methods=['POST'])
+def turn_led_off():
+    
+    led.off() 
+    led_status= 'LED is off'
+    
+    #Return the page result
+    return render_template('index.html', led_status=led_status)
+
+if __name__ == '__main__':
+   app.run(host='0.0.0.0', port=8000)