ttp229 python i2c raspberry pi pins K0-K7

ttp229_test.py

"""
you will need smbus, install it:
apt install python-smbus
only keys 0-7 are covered by this script
this script will show you which keys you touched
tested with a: 16 Keys I2C Capacitive Touch TTP229 Module
"""

import smbus,time
bus = smbus.SMBus(1)
adress =  0x57
knames = {0: "nothing", 128: "K0", 64: "K1", 32: "K2", 16: "K3", 8: "K4", 4: "K5", 2: "K6", 1: "K7", 192: "K0+K1"}

while True:
	byte = bus.read_byte(adress)
	try:
		print knames[byte]
	except Exception as e:
		print "Unknown Key: %i (did you press more than one key?)" %byte

	time.sleep(1)