• Setup
• Connect to serial port
• Copying file
• How to connect things
  • Distance measuring
    • HCSR04 Pins
    • Set up distance measuring
  • Movement sensor
    • Sensor pins
    • Set up movement sensor
  • Relay
    • Pins
    • Set up relays

Setup

virtualenv --no-site-packages --distribute .env
source .env/bin/activate
pip install -r requirements.txt

Connect to serial port

picocom /dev/ttyUSB0 -b115200

Copying file

ampy --port /dev/ttyUSB0 put hcsr04.py

How to connect things

Distance measuring

HCSR04 Pins

Pin on component	Pin on card
Trig	D2
Echo	D3
Vcc	5V
GND	GND

Set up distance measuring

import main, time

while True:
    print(main.getDistance())
    time.sleep(1)

Movement sensor

Sensor pins

Pin on component	Pin on card
5V	5V
GND	GND
OUT	D4

Set up movement sensor

import main, time

while True:
    print(main.getMovement())
    time.sleep(0.5)

Relay

Pins

Pin on component	Pin on card
Vcc	5V
Gnd	GND
In1	D5
In2	D6

Set up relays

import main

# Use this to reset the state of the relay
main.resetRelay()

# Move table up
main.toggleRaiseUp()

# Move table down
main.toggleLowerDown()

# To go up and down and measure distance and stuff at the same time
main.goCrazy()