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* Setup
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#+BEGIN_SRC sh
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virtualenv --no-site-packages --distribute .env
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source .env/bin/activate
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pip install -r requirements.txt
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#+END_SRC
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* Connect to serial port
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#+BEGIN_SRC sh
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picocom /dev/ttyUSB0 -b115200
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#+END_SRC
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* Small card
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** Distance measuring
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*** HCSR04 Pins
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Trig -- D0
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Echo -- D3
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Vcc -- 5V
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GND -- GND
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*** Set up distance measuring
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#+begin_src python
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import tablecode.main
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tablecode.main.distance(16, 0)
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#+end_src
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** Movement sensor
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*** Sensor pins
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5V -- 5V
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GND -- GND
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OUT -- D0
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*** Set up movement sensor
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#+begin_src python
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import machine
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pin = machine.Pin(0, mode=machine.Pin.IN, pull=None)
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print(pin.value())
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#+end_src
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