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