2014-11-25 18:10:05 +01:00
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#!/usr/bin/env python
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# 2014-08-26 PCF8591.py
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import time
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import curses
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import pigpio
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# sudo pigpiod
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# ./PCF8591.py
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2014-11-25 19:05:55 +01:00
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# Connect Pi 3V3 - VCC, Ground - Ground, SDA - SDA, SCL - SCL.
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2014-11-25 18:10:05 +01:00
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YL_40=0x48
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pi = pigpio.pi() # Connect to local Pi.
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handle = pi.i2c_open(1, YL_40, 0)
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stdscr = curses.initscr()
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curses.noecho()
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curses.cbreak()
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aout = 0
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stdscr.addstr(10, 0, "Brightness")
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stdscr.addstr(12, 0, "Temperature")
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stdscr.addstr(14, 0, "AOUT->AIN2")
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stdscr.addstr(16, 0, "Resistor")
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stdscr.nodelay(1)
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try:
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while True:
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for a in range(0,4):
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aout = aout + 1
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pi.i2c_write_byte_data(handle, 0x40 | ((a+1) & 0x03), aout&0xFF)
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v = pi.i2c_read_byte(handle)
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hashes = v / 4
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spaces = 64 - hashes
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stdscr.addstr(10+a*2, 12, str(v) + ' ')
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stdscr.addstr(10+a*2, 16, '#' * hashes + ' ' * spaces )
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stdscr.refresh()
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time.sleep(0.04)
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c = stdscr.getch()
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if c != curses.ERR:
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break
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except:
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pass
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curses.nocbreak()
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curses.echo()
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curses.endwin()
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pi.i2c_close(handle)
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pi.stop()
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