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Update hot.py

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Use analog sensors on CPX, display potentiometer heat changes on NeoPixels
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Mike Barela 2018-08-31 08:58:09 -04:00 committed by GitHub
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1 changed files with 30 additions and 16 deletions
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46
Make_It_Hot_Cold/hot.py
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@ -1,25 +1,39 @@
import time
import board
from analogio import AnalogIn
from adafruit_crickit import crickit
import neopixel
print("Heating Pad Demo")
# For signal control, we'll chat directly with seesaw
ss = crickit.seesaw
TMP36 = crickit.SIGNAL1 # TMP36 connected to signal port 1 & ground
POT = crickit.SIGNAL8 # potentiometer connected to signal port 8 & ground
pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, auto_write=False)
heating_pad = crickit.dc_motor_2
def show_value(heat_val): # Show throttle on NeoPixels on CPX
num_pixels = int(10 * heat_val)
for i in range(num_pixels):
pixels[i] = (10*(i+1), 0, 0)
for i in range(num_pixels, 10):
pixels[i] = (0, 0, 0)
pixels.show()
return
while True:
TMP36 = AnalogIn(board.A3) # TMP36 connected to A3, power & ground
POT = AnalogIn(board.A7) # potentiometer connected to A7, power & ground
heating_pad = crickit.dc_motor_2 # Set the motor object to heating pad
while True: # Loop Forever
voltage = TMP36.value * 3.3 / 65536.0 # Read temp sensor, get voltage
tempC = (voltage - 0.5) * 100.0 # Calculate Celsius
tempF = (tempC * 9.0 / 5.0) + 32.0 # Calculate Fahrenheit
tempF = (tempC * 9.0 / 5.0) + 32.0 # Calculate Fahrenheit
voltage = ss.analog_read(TMP36) * 3.3 / 1024.0
tempC = (voltage - 0.5) * 100.0
tempF = (tempC * 9.0 / 5.0) + 32.0
heat_value = POT.value / 65536.0 # Value (0.0 to 1.0) to drive pad
print((tempF, heat_value)) # Display temperature and drive
show_value(heat_value)
heat_value = ss.analog_read(POT) / 1023.0
print((tempF, heat_value))
heating_pad.throttle = heat_value # set heat value to Motor throttle value
time.sleep(0.25)
heating_pad.throttle = heat_value # set Motor throttle value to heat_value
time.sleep(0.25) # Wait a bit before checking all again