#a simple beaglebone black instrument, a/v, embedded systems, udk
#see https://github.com/redFrik/udk10-Embedded_Systems

#this will read analog and digital sensors and send osc data locally to sc
#start it with 'sudo python thursday.py &'

import Adafruit_BBIO.ADC as ADC
import Adafruit_BBIO.GPIO as GPIO
import time
import liblo as osc


#-- settings
analog_sensors= ["P9_39", "P9_40", "P9_41", "P9_42"] # customize here and add your own sensors
#digital_sensors= ["P9_41", "P9_42"] # customize here  and add your own sensors
update_rate= 0.05 # time in seconds between each reading
# Define target for osc messages
target = osc.Address('127.0.0.1', 57120, osc.UDP)

#-- init
ADC.setup()
for sensor in digital_sensors:
    GPIO.setup(sensor, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)


def send_msg(name, sensor, value):
    global target
    msg = osc.Message(name)
    msg.add(name)
    msg.add(value)
    try:
        sc.send(target, msg) # send out osc
    except:
        pass # do nothing if seding failed
    #print msg # debug

def main():
    last= {} # remember sensor values in a dict
    while True:
        for sensor in analog_sensors:
            #val= int(ADC.read_raw(sensor)) # 0-1799
            val= float(ADC.read(sensor)) # 0.0 - 1.0
            if last.get(sensor, None)!=val:
                send_osc("/ana", sensor, val)
                last[sensor]= val # store sensor value
#   	for sensor in digital_sensors:
#   		val= GPIO.input(sensor) # 0-1
#   		if last.get(sensor, None)!=val:
#   			sendOSC("/dig", sensor, val)
#   			last[sensor]= val # store sensor value
    time.sleep(update_rate)

if __name__=='__main__':
	main()