The idea of the slouch detector is simple. If the current angle sensed by the Circuit Playground (current_angle) exceeds a preset value (SLOUCH_ANGLE), then we are slouching and should sound an alarm. Here's the code.
# Circuit Playground Slouch Detector v1 # # Compute current angle using accelerometer and compare # to preset slouch angle. Sound alarm if slouching. # # Author: Carter Nelson # MIT License (https://opensource.org/licenses/MIT) import time import math from adafruit_circuitplayground.express import cpx SLOUCH_ANGLE = 10.0 SLOUCH_TIME = 3 GRAVITY = 9.80665 # Loop forever while True: # Compute current angle current_angle = math.asin(-cpx.acceleration[2] / GRAVITY) current_angle = math.degrees(current_angle) # Check if slouching if current_angle > SLOUCH_ANGLE: cpx.play_tone(800, 0.5)
Page last edited March 08, 2024
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