def _analog_read(self, pin):
if self.board_type == '':
if self._supports_analog(pin):
return wp.analogRead(pin)
else:
return self._digital_read(pin) * 1023
elif self.board_type == 'troyka_cap_ext':
return self.exp.analogRead(pin)
def get_value(self, channel):
# raw_value = random.random()
#
# reading is an 8 bit value (i.e.0 - 255)
# return millivolts read by the adc
int_value = wiringpi.analogRead(self.pin_base + channel)
millivolts = self.fullScale * int_value / 255.0
# print("getvalue %f3(%i) from channel %i at address %i on port %i" % (millivolts, int_value, channel,self.address, self.port))
return (millivolts)
def get_value(self, channel):
# raw_value = random.random()
#
# reading is an 8 bit value (i.e.0 - 255)
# return millivolts read by the adc
int_value = wiringpi.analogRead(self.pin_base + channel)
millivolts = self.fullScale * int_value / 255.0
# print("getvalue %f3(%i) from channel %i at address %i on port %i" % (millivolts, int_value, channel,self.address, self.port))
return(millivolts)
def read_pin(self, pin):
'''
- 读取电压
'''
pin_value = wiringpi.analogRead(pin + PCF8591_START_ADDR - 1)
# 如果读取到的值小于5，就忽略,需要更改
if pin_value < 5:
pin_value = 0
pin_volt = pin_value * PCF8591_CONSTANT + PCF8591_DEVIATION
return pin_volt
def Read(self):
# registance
#R1 = 4.10*1000.0 # [Ω]
#R2 = 5.32*1000.0 # [Ω]
R1 = 3.9 * 1000.0 # [Ω]
R2 = 5.6 * 1000.0 # [Ω]
SumRegistance = R1 + R2
#voltage
Vcc_MAX = 12.0 # [V]
Vdd = 4.8 # [V]
Vref = Vdd
Vlsb = Vref/1024.0
#amplitude
#Iin = 0.0 # [A]
Iin = 0.000655 # [A]
mcp3002_data = float(wp.analogRead(self.PIN_BASE + self.MCP_CH))
Vin = ((mcp3002_data/1024.0) * Vdd) # 2.988[V] if Vcc=7.4[V]
return ((Vin/R2) + Iin) * SumRegistance
def read_da(self,ch): return wp.analogRead(RobotIO.PIN_BASE+ch)
def adcval(self):
return wiringpi.analogRead(self.__pin)
def _analog_read(self, pin):
if self._supports_analog(pin):
return wp.analogRead(pin)
else:
return self._digital_read(pin) * 1023
def gas_detect(PIN_BASE, SPI_CH):
wp.mcp3002Setup(PIN_BASE, SPI_CH)
gas = wp.analogRead(PIN_BASE)
return gas
#!coding:utf8
import wiringpi
import time
#init
wiringpi.wiringPiSetup()
wiringpi.pcf8591Setup(121, 0x48)
#GS1 gpio.1 GS0 gpio.4
wiringpi.pinMode(1, 1)
wiringpi.digitalWrite(1, 1)
wiringpi.pinMode(4, 1)
wiringpi.digitalWrite(4, 1)
#
current_sample = wiringpi.analogRead(122) - 1
print(current_sample)
current = current_sample * 3.3 / 256 * 4 / 200 * 1000
print('current is {} mA'.format(current))
def read_odor():
return wp.analogRead(PIN_BASE)
#!/usr/bin/python from time import sleep import RPi.GPIO as GPIO import wiringpi GPIO.setmode(GPIO.BCM) GPIO.setup(2, GPIO.IN) while 1: print wiringpi.analogRead(2)
import sys
import time
import wiringpi
from wiringpi import GPIO
I2C_ADDR = 0x48
BASE = 64
A0 = BASE+0
A1 = BASE+1
wiringpi.wiringPiSetup()
wiringpi.pcf8591Setup(BASE, I2C_ADDR)
while True:
try:
i = 0
while i < 2:
if 0 == i:
x = wiringpi.analogRead(A0)
if 1 == i:
y = wiringpi.analogRead(A1)
i += 1
print("X=%d Y=%d"%(x,y))
time.sleep(1)
except KeyboardInterrupt:
print('\nExit')
sys.exit(0)
import wiringpi as wp
import time
OUTPUT = 1
INPUT = 0
HIGH = 1
LOW = 0
wp.wiringPiSetupGpio()
wp.pinMode(1, 0)
while True:
value1 = wp.analogRead(25)
time.sleep(0.1)
value2 = wp.analogRead(25)
speed = value2
print(value)
#!coding:utf8
import wiringpi
import time
wiringpi.wiringPiSetup()
wiringpi.pcf8591Setup(121, 0x48)
wiringpi.pinMode(7,1)
wiringpi.digitalWrite(7,1)
wiringpi.pinMode(0,1)
wiringpi.digitalWrite(0,1)
wiringpi.pinMode(2,1)
wiringpi.digitalWrite(2,1)
time.sleep(1)
for i in range(4):
print(wiringpi.analogRead(121+i))
time.sleep(1)
'''
print(wiringpi.analogRead(122))
'''
import wiringpi wiringpi.wiringPiSetupGpio() wiringpi.pinMode(1,1) while wiringpi.analogRead(0) < 100: pass wiringpi.digitalWrite(1,1)
def read_da(self, ch):
return wp.analogRead(RobotIO.PIN_BASE + ch)
client.disconnect()
#Connect to AWS IoT
client = mqtt.Client(client_id="odroid-c1", protocol=mqtt.MQTTv311)
client.on_connect = on_connect
client.tls_set("certs/root-CA.crt", certfile="certs/certificate.pem.crt", keyfile="certs/private.pem.key", tls_version=ssl.PROTOCOL_SSLv23, ciphers=None)
client.tls_insecure_set(True)
client.connect("A32L40P6IYKK8W.iot.us-east-1.amazonaws.com", 8883, 60)
client.loop_start()
count = 0
msound = mvolume = 0
for x in range (0, 100):
time.sleep(3)
# read sensor data
ts = int(time.time())
sound = wpi.digitalRead(21)
volume = wpi.analogRead(0)*255/2047 # 0-10=quiet, 10-30=moderate, 30-127=loud
if sound > msound:
msound = sound
if volume > mvolume:
mvolume = volume
# send data to AWS
if count == 0:
msg = {'sound': msound, 'volume': mvolume}
print json.dumps(msg)
client.publish('sensors', json.dumps(msg))
msound = mvolume = 0
import sys
import time
import wiringpi
from wiringpi import GPIO
I2C_ADDR = 0x48
BASE = 64
A0 = BASE + 0
wiringpi.wiringPiSetup()
wiringpi.pcf8591Setup(BASE, I2C_ADDR)
while True:
try:
value = wiringpi.analogRead(A0)
print("value: %d" % value)
time.sleep(2)
except KeyboardInterrupt:
print('\nExit')
sys.exit(0)