def __init__(self, pin):
adc = ADC(bits=12)
self.apin = adc.channel(pin=pin)
self.values = [0 for i in range(5)]
self.volt = 4200
self.chrg = 100
self.idx = 0
def near(self):
id = int(str(self)[4:-1]) #unsafe!
pin15=Pin(15,Pin.OUT)
pin15.value(1)
adc=ADC(Pin(id))
adc.atten(ADC.ATTN_11DB)
approximate =adc.read()
pin15.value(0)
return approximate
class MPythonPin(Pin):
def __init__(self, pin, mode=PinMode.IN):
if mode not in [PinMode.IN, PinMode.OUT, PinMode.PWM, PinMode.ANALOG]:
raise TypeError("mode must be 'IN, OUT, PWM, ANALOG'")
if pin == 3:
raise TypeError("pin3 is used for resistance sensor")
if pin == 4:
raise TypeError("pin4 is used for light sensor")
if pin == 10:
raise TypeError("pin10 is used for sound sensor")
self.id = pins_remap_esp32[pin]
if mode == PinMode.IN:
super().__init__(self.id, Pin.IN, Pin.PULL_UP)
if mode == PinMode.OUT:
if pin == 2:
raise TypeError('pin2 only can be set "IN, ANALOG"')
super().__init__(self.id, Pin.OUT)
if mode == PinMode.PWM:
if pin == 2:
raise TypeError('pin2 only can be set "IN, ANALOG"')
self.pwm = PWM(Pin(self.id), duty=0)
if mode == PinMode.ANALOG:
if pin not in [0, 1, 2, 3, 4, 10]:
raise TypeError('the pin can~t be set as analog')
self.adc = ADC(Pin(self.id))
self.adc.atten(ADC.ATTN_11DB)
self.mode = mode
def read_digital(self):
if not self.mode == PinMode.IN:
raise TypeError('the pin is not in IN mode')
return super().value()
def write_digital(self, value):
if not self.mode == PinMode.OUT:
raise TypeError('the pin is not in OUT mode')
super().value(value)
def read_analog(self):
if not self.mode == PinMode.ANALOG:
raise TypeError('the pin is not in ANALOG mode')
return self.adc.read()
def write_analog(self, duty, freq=1000):
if not self.mode == PinMode.PWM:
raise TypeError('the pin is not in PWM mode')
self.pwm.freq(freq)
self.pwm.duty(duty)
def __init__(self,pin,mode=PinMode.IN):
if mode not in[PinMode.IN,PinMode.OUT,PinMode.PWM,PinMode.ANALOG]:
raise TypeError("mode must be 'IN, OUT, PWM, ANALOG'")
if pin==3:
raise TypeError("pin3 is used for resistance sensor")
if pin==4:
raise TypeError("pin4 is used for light sensor")
if pin==10:
raise TypeError("pin10 is used for sound sensor")
self.id=pins_remap_esp32[pin]
if mode==PinMode.IN:
super().__init__(self.id,Pin.IN,Pin.PULL_UP)
if mode==PinMode.OUT:
if pin==2:
raise TypeError('pin2 only can be set "IN, ANALOG"')
super().__init__(self.id,Pin.OUT)
if mode==PinMode.PWM:
if pin==2:
raise TypeError('pin2 only can be set "IN, ANALOG"')
self.pwm=PWM(Pin(self.id),duty=0)
if mode==PinMode.ANALOG:
if pin not in[0,1,2,3,4,10]:
raise TypeError('the pin can~t be set as analog')
self.adc=ADC(Pin(self.id))
self.adc.atten(ADC.ATTN_11DB)
self.mode=mode
def getTemperature(): global ADC_PIN_TMP36 global T_MAX_MV global V_TO_MV global ADC_MAX_VAL global PRECISION_SCALE global OFFSET_MV global SCALE_FACTOR adc_tmp36 = ADC(0) apin_tmp36 = adc_tmp36.channel(pin=ADC_PIN_TMP36) rawTemp = 0 for x in range(0, 100): adc_value = apin_tmp36.value() # read value (0~1024) then converted in mV then scaled to get more precision tMV = adc_value * (T_MAX_MV / ADC_MAX_VAL)* PRECISION_SCALE # convert th mV received to temperature rawTemp += (tMV - OFFSET_MV) / 10 return (rawTemp/100)
def __init__(self):
self.x_adc = ADC(1)
self.btn_speed_up = Pin("P13", mode=Pin.IN, pull=Pin.PULL_UP)
self.btn_speed_down = Pin("P15", mode=Pin.IN, pull=Pin.PULL_UP)
self.btn_speed_full = Pin("P14", mode=Pin.IN, pull=Pin.PULL_UP)
self.btn_speed_off = Pin("P16", mode=Pin.IN, pull=Pin.PULL_UP)
self.x_mid = 0
self.calibrate()
self.connect()
self.loop()
class Battery(object):
"""
Expansion board has battery on GP3
The ADC measures between 0-1.4V
It is 12bit (0-4095)
It is measuring off a 56k/(56k+115k) voltage divider - 0.32
"""
MINIMUM = 3180 # 3.64V measured
CHARGED = 3600 # Using 4.15V
RANGE = (CHARGED - MINIMUM)
def __init__(self):
self.adc = ADC()
self.battery_raw = self.adc.channel(pin='GP3')
def __del__(self):
self.battery_raw.deinit()
self.adc.deinit()
def safe(self):
"""
Is battery at operating voltage?
:return: True/False
"""
return self.battery_raw() >= Battery.MINIMUM
def value(self):
"""
Battery percentage
:return: 0-100
"""
val = (self.battery_raw() - Battery.MINIMUM) * 100
val = val // Battery.RANGE
if val > 100:
val = 100
if val < 0:
val = 0
return val
def get_amb_light():
adc = ADC(Pin(AMB_LIGHT))
adc.atten(ADC.ATTN_11DB)
return adc.read()
class DAQ_Unit(object):
def __init__(self):#, freqVal=10000, numpnts = 1000):
if RDB.ping():
self.daqDict = pullRedisJson(RDB, DAQPARAMKEY)
gc.collect()
else:
self.daqDict = DAQPARAMS
self.setDaqParams()
self.curPos = 0
self.setupADC()
self.setupTimer()
def updateDaqParams(self):
if RDB.ping():
self.daqDict = pullRedisJson(RDB, DAQPARAMKEY)
gc.collect()
else:
print("Redis DAQ Param Pull Failed\n\tReverting to defaults...")
self.setDaqParams()
def setDaqParams(self):
self.gpw = self.daqDict['gpw']
self.numPnts = self.daqDict['numPnts']
self.acqSpeed = self.daqDict['acqSpeed']
self.freq = self.daqDict['freq']#40000#1//(self.acqSpeed*1000)#acqSpeed is in microseconds
self.acqType = self.daqDict['acqType']
self.numAves = self.daqDict['numAves']
self.multiplexParam = self.daqDict['multiplexParam']
self.dataArray = array.array('H', range(self.numPnts))#initialize data array
self.dataID = uniqid()
self.daqDict['dataCode'] = self.dataID
self.filePath = self.dataID+'.txt'
self.daqDict['filePath'] = self.filePath
self.daqDict['data'] = self.dataArray
gc.collect()
def pushData(self, writeSD = False):
t = time.time()
RDB.rpush(self.dataID, self.dataID)
RDB.rpush(self.dataID, self.numPnts)
RDB.rpush(self.dataID, self.numAves)
RDB.rpush(self.dataID, self.gpw)
RDB.rpush(self.dataID, self.acqSpeed)
RDB.rpush(self.dataID, self.freq)
RDB.rpush(self.dataID, self.filePath)
RDB.rpush(self.dataID, self.acqType)
RDB.rpush(self.dataID, self.multiplexParam)
print(time.time()-t)
j = 0#Break and send data (Not optimum but better than one by one)
for i in range(1+len(self.dataArray)//INDEXVAL):
RDB.rpush(self.dataID, str(self.dataArray[j:j+INDEXVAL]))
j+=INDEXVAL
RDB.rpush('activeData', self.dataID)
if writeSD:
self.writeData()
gc.collect()
print("Push Time")
t = time.time()-t
print(t)
def stopTimer(self):
self.tim.deinit()
def setupTimer(self):
'''
Need to look at the following:
But how to average? (Do we need two buffers)
http://docs.micropython.org/en/latest/pyboard/library/pyb.ADC.html
'''
#How to stop timer?
self.tim = Timer(0, mode = Timer.PERIODIC, width = 32)#what is this width? Timer resolution?
self.timChannel = self.tim.channel(Timer.A, freq = self.freq)
#What is the function of the trigger, do we need to implement external vs internal?
self.timChannel.irq(handler=self._addData_, trigger = Timer.TIMEOUT)
def setupADC(self):
self.adc = ADC()
self.adcPin = self.adc.channel(pin = 'GP3')
def _addData_(self, timer, saveData = False):
self.dataArray[self.curPos] = self.adcPin()
self.curPos+=1
self.curPos%=self.numPnts#this value can ultimately help us with the number of aves.
def writeData(self):
t = time.time()
curDir = os.getcwd()
os.chdir("/sd")#change directory to SD card
try:
f = open(self.filePath, 'w')
# json.dump(self.daqDict, f)#assumes the data has already been converted to a string-Redis doesn't like arrays
f.write("%s\n"%self.dataID)
f.write("%s\n"%str(self.numPnts))
f.write("%s\n"%str(self.numAves))
f.write("%s\n"%str(self.gpw))
f.write("%s\n"%str(self.acqSpeed))
f.write("%s\n"%str(self.freq))
f.write("%s\n"%self.filePath)
f.write("%s\n"%str(self.acqType))
f.write("%s\n"%str(self.multiplexParam))
for d in self.dataArray:
f.write("%s,\n"%str(d))
f.close()
os.chdir(curDir)
except:
os.chdir(curDir)
print("Saving to %s failed"%fileName)
gc.collect()
print("Write Time: %s"%(time.time()-t))
def getPaddle(maxvalue=1024):
return int(ADC(0).read() / (1024 / maxvalue))
#
# url3 = "https://api.thingspeak.com/update?api_key=CRPM5S9C06JVXFRT&field3=" + str(methane)
# # print("url3: " + url3)
# http_get(url3)
def init_IFTTT_timer():
sensor_update_timer = Timer(1)
# callback every min.
sensor_update_timer.init(period=3600000, mode=Timer.PERIODIC, callback=update_sensors_IFTTT)
# main
# ADC pin - A2 - ADC1
methane_adc = ADC(Pin(34))
# ADC pin - A3 - ADC1
CO2_adc = ADC(Pin(39))
# set to measure up to 3.3v
methane_adc.atten(ADC.ATTN_11DB)
methane_adc.width(ADC.WIDTH_12BIT)
CO2_adc.atten(ADC.ATTN_11DB)
CO2_adc.width(ADC.WIDTH_12BIT)
# i2c = SoftI2C(scl=Pin(22), sda=Pin(23))
# hts = hts221.HTS(i2c)
internet_connect()
# Adafruit Feather HUZZAH ESP8266 # Adafruit Feather HUZZAH ESP32 # WeMos D1 Mini # # User configuration parameters are indicated with "ENTER_". import network import time from umqtt.robust import MQTTClient import os import gc import sys from machine import Pin,ADC,PWM #pin = Pin(2, Pin.OUT, value = 1) adc = ADC(0) pwm = PWM(Pin(2)) def cb_03(topic, msg): pwm.duty(int(msg)) # WiFi connection information WIFI_SSID = 'LG' WIFI_PASSWORD = '******' # turn off the WiFi Access Point ap_if = network.WLAN(network.AP_IF) ap_if.active(False) # connect the device device to the WiFi network wifi = network.WLAN(network.STA_IF)
def average_analog_sensor(sensor: ADC, time: int) -> float:
vals = 0
for x in range(time):
vals += sensor.read()
sleep_ms(1)
return vals / time
# Raspberry Pi Pico connected w/ Pimoroni Pico Display # This sample program shows some information # and uses some on-board resources to illustrate their query # (c) 2021-02-04 Claus Kuehnel ([email protected]) import machine, time, sys, uos import picodisplay as display from machine import Timer from machine import Pin from machine import ADC led = Pin(25, Pin.OUT) # external LED on Pi Pico t = Timer() offset = ADC(0) # use grounded channel 0 for measuring ADC offset temp = ADC(4) # use channel 4 for measuring temperature conversion_factor = 3.3 / (65536) def blink(Timer): led(1) time.sleep_ms(20) # LED on for 20 milliseconds led(0) def initDisplay(): width = display.get_width() height = display.get_height() display_buffer = bytearray(width * height *
from machine import Pin, ADC, DAC from board import ADC3, ADC6 from time import sleep adc = ADC(Pin(ADC6)) adc2 = ADC(Pin(ADC3)) adc2.atten(ADC.ATTN_11DB) adc.atten(ADC.ATTN_11DB) for i in range(1000): sleep(.1) val = adc.read() val1 = adc2.read() print(val, val1)
# main.py
import socket
import time
from machine import ADC, Pin
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('192.168.2.9', 1234))
tempSensor = ADC(Pin(32))
tempSensor.atten(ADC.ATTN_6DB)
tempSensor.width(ADC.WIDTH_10BIT)
led = Pin(12, Pin.OUT)
while True:
temp = (tempSensor.read()/1024 * 2 - .5)*100
print(temp)
s.send(bytes(str(temp),'utf-8'))
command = s.recv(1024).decode('utf-8')
print(command)
if command == 'led_on':
led.on()
elif command == 'led_off':
led.off()
time.sleep(2)
from machine import ADC
from machine import Pin
import time
LightSensorPin = 'P16' # sensor connected to P16. Valid pins are P13 to P20.
lightPin = Pin(LightSensorPin, mode=Pin.IN) # set up pin mode to input
#
adc = ADC(bits=10) # create an ADC object bits=10 means range 0-1024 the lower value the less light detected
apin = adc.channel(attn=ADC.ATTN_11DB, pin=LightSensorPin) # create an analog pin on P16; attn=ADC.ATTN_11DB measures voltage from 0.1 to 3.3v
while True:
val = apin() # read an analog value
print("Value", val)
time.sleep(1) # wait 1 sec
from machine import Pin, PWM, ADC, DAC
from time import sleep
from _thread import start_new_thread as thread
import json, network, urequests
ssid = 'exceed16_8'
pwd = '12345678'
station = network.WLAN(network.STA_IF)
station.active(True)
statBuzzer = 'off'
statDoor = 'close'
infra = Pin(26, Pin.OUT)
ldr = ADC(Pin(32))
R = Pin(21, Pin.OUT)
G = Pin(19, Pin.OUT)
B = Pin(18, Pin.OUT)
SW = Pin(27, Pin.IN)
switch1 = Pin(25, Pin.IN)
servo = PWM(Pin(22), freq=50, duty=77)
count = 0
def door():
global servo
global statDoor
statDoor = 'close'
servo.duty(120)
sleep(0.5)
global count
def create_voltage_reader():
adc = ADC(Pin(_ADC_PIN))
adc.atten(ADC.ATTN_11DB) # set 11dB input attenuation (voltage range roughly 0.0v - 3.6v)
adc.width(ADC.WIDTH_9BIT) # set 9 bit return values (returned range 0-511)
voltage_reader = VoltageReader(adc, _ADC_UPPER_LIMIT)
return voltage_reader
while upper > pwr2:
pwr2 <<= 1
bits += 1
while True:
r = getrandbits(bits)
if r < upper:
break
return r + start
def randint(start, stop):
return randrange(start, stop + 1)
# from adc value to keyname --------------
adc = ADC(0)
def getKey(adc):
key = 'n'
if adc < 80:
key = 'n'
elif abs(adc - 922) < 50:
key = 'u'
elif abs(adc - 740) < 50:
key = 'd'
elif abs(adc - 555) < 80:
key = 'l'
elif abs(adc - 370) < 50:
key = 'r'
elif abs(adc - 188) < 80:
class PowerUp3:
def __init__(self):
self.x_adc = ADC(1)
self.btn_speed_up = Pin("P13", mode=Pin.IN, pull=Pin.PULL_UP)
self.btn_speed_down = Pin("P15", mode=Pin.IN, pull=Pin.PULL_UP)
self.btn_speed_full = Pin("P14", mode=Pin.IN, pull=Pin.PULL_UP)
self.btn_speed_off = Pin("P16", mode=Pin.IN, pull=Pin.PULL_UP)
self.x_mid = 0
self.calibrate()
self.connect()
self.loop()
def read_stick_x(self):
return self.x_adc.value()
def button_speed_up(self):
return not bool(self.btn_speed_up.value())
def button_speed_down(self):
return not bool(self.btn_speed_down.value())
def button_speed_full(self):
return not bool(self.btn_speed_full.value())
def button_speed_off(self):
return not bool(self.btn_speed_off.value())
def calibrate(self):
self.x_mid = self.read_stick_x()
def __str__(self):
return "calibration x: %i, y: %i" % (self.x_mid)
def map_chars(self):
s = self.p.getServices()
service_batt = s[3]
service_control = s[4]
self.char_batt_lvl = service_batt.getCharacteristics()[0]
self.char_control_speed = service_control.getCharacteristics()[0]
self.char_control_angle = service_control.getCharacteristics()[2]
def battery_level(self):
return int(self.char_batt_lvl.read()[0])
def speed(self, new_speed=None):
if new_speed == None:
return int(self.char_control_speed.read()[0])
else:
self.char_control_speed.write(bytearray([new_speed]))
def angle(self, new_angle=None):
if new_angle == None:
return int(self.char_control_angle.read()[0])
else:
self.char_control_angle.write(bytearray([new_angle]))
def connect(self):
dev = None
# connect to the airplane
while not dev:
dev = find_device_by_name("TailorToys PowerUp")
if dev:
self.p = Peripheral()
self.p.connect(dev.addr())
# locate interesting characteristics
self.map_chars()
def rudder_center(self):
if self.old_angle != 0:
self.old_angle = 0
self.angle(0)
def rudder_left(self, angle):
steps = (angle // self.interval_size_left)
new_angle = 60 - steps
if self.old_angle != new_angle:
self.angle(new_angle)
self.old_angle = new_angle
def rudder_right(self, angle):
steps = (angle // self.interval_size_right)
new_angle = -steps
if self.old_angle != new_angle:
self.angle(new_angle)
self.old_angle = new_angle
def throttle(self, speed):
if (speed > 200):
speed = 200
elif (speed < 0):
speed = 0
if self.old_speed != speed:
self.speed(speed)
self.old_speed = speed
def loop(self):
adc_threshold = 10
right_threshold = self.x_mid + adc_threshold
left_threshold = self.x_mid - adc_threshold
self.interval_size_left = self.x_mid // 60
self.interval_size_right = (255 - self.x_mid) // 60
self.old_angle = 0
self.old_speed = 0
while True:
time.sleep_ms(100)
# read out new angle
new_angle = self.read_stick_x()
if (new_angle < 256):
if (new_angle > right_threshold):
self.rudder_right(new_angle - self.x_mid)
elif (new_angle < left_threshold):
self.rudder_left(new_angle)
else:
self.rudder_center()
# read out new speed
new_speed = self.old_speed
if self.button_speed_up():
new_speed += 25
elif self.button_speed_down():
new_speed -= 25
elif self.button_speed_full():
new_speed = 200
elif self.button_speed_off():
new_speed = 0
else:
pass
self.throttle(new_speed)
# This code Created by Inventing Phoenix
# 1 FEB 2021
from machine import Pin, PWM, ADC # This will help you access these pins using the Pin class of the machine module
# and PWM and ADC class of the machine module. ADC class will help us use analog pins
import time
pwm = PWM(
Pin(15)
) # Pin number 15 has been assigned to our LED and it as also initated as PWM component
adc = ADC(
Pin(26)
) # Pin number 26 has been assigned to our potentiometer and its initated as analog component
pwm.freq(
1000
) # tells Raspberry Pi Pico how often to switch the power between on and off for the LED.
while True: # runs the loop forever
duty = adc.read_u16(
) # analog values read by the analog pin assigned to the potentiometer will be save in duty variable
print(duty) # will print the analog value on the screen
pwm.duty_u16(
duty) # will pass one the analog value to the LED as a PWM input
time.sleep(1) # delay for 1 second
#Thank you for watching the video! Please subscribe to our youtube channel and click on the bell notification
def __init__(self):
self.adc = ADC()
self.battery_raw = self.adc.channel(pin='GP3')
from machine import Pin, ADC
from time import sleep
horadc = ADC(Pin(34)) # create ADC object on ADC pin 34
horadc.atten(ADC.ATTN_11DB)
veradc = ADC(Pin(33)) # create ADC object on ADC pin 33
veradc.atten(ADC.ATTN_11DB)
while True:
print("Horizontal: ",horadc.read())
print("Vertical: ",veradc.read())
sleep(1)
### Released into the public domain.
###
import time
from machine import ADC
print("Thinxtra Pycom SiPy test - Distance detection")
# Variables and i/o definition
PIN_SENSOR = 'P13' #G5 on expansion board
# Get the distance every 1sec
while (True):
adc = ADC()
adc_c = adc.channel(attn=ADC.ATTN_11DB, pin=PIN_SENSOR)
distance = adc_c()
if 4095 > distance >= 2850:
print("d = 7 to 10cm (", distance, ")")
elif 2850 > distance >= 1610:
print("d = 10 to 20cm (", distance, ")")
elif 1610 > distance >= 1120:
print("d = 20 to 30cm (", distance, ")")
elif 1120 > distance >= 930:
print("d = 30 to 40cm (", distance, ")")
elif 930 > distance >= 800:
print("d = 40 to 50cm (", distance, ")")
elif 800 > distance >= 620:
print("d = 50 to 60cm (", distance, ")")
elif 620 > distance >= 560:
#.modes - a = writing appended (a+ writing/reading) .#
#. w = writing from beginning of file. Will create file (w+ writing/reading) .#
#. r+ = reading/writing from beginning of file. Raises I/O error if doesn't exist .#
#. b means binary
dataFile = "esp32-joystick.csv"
mode = "wb" if dataFile in uos.listdir() else "r+" #. Create data file and write out header .#
with open(dataFile, "wb") as f:
f.write("file,sensor,type,data\n")
#. vref = 3.3 .#
numOfChannels = 2
chan = [x for x in range(numOfChannels)] #. use two channels, 1 for X and 1 for Y direction .#
chan[0] = ADC(Pin(35))
chan[1] = ADC(Pin(34))
chan[0].atten(ADC.ATTN_11DB) #. Full range: 3.3V .#
chan[1].atten(ADC.ATTN_11DB) #. Full range: 3.3V .#
numOfSamples = 10
sensorAve = [x for x in range(numOfChannels)]
sensorLastRead = [x for x in range(numOfChannels)]
for x in range(numOfChannels): #. initialize the first read for comparison later .#
sensorLastRead[x] = chan[x].read()
adcValue = [x for x in range(numOfChannels)]
sensor = [[x for x in range(0, numOfSamples)] for x in range(0, numOfChannels)]
def valmap(self, value, istart, istop, ostart, ostop):
return ostart + (ostop - ostart) * ((value - istart) / (istop - istart))
from machine import ADC, Pin
from servo import Servo
import time
#ledPin = Pin(2, Pin.OUT)
adc = ADC(0)
s = Servo(0)
s.rotate(0)
while True:
val = adc.read()
if val < 200:
s.rotate(90)
time.sleep(0.5)
s.rotate(0)
else:
pass
time.sleep(0.5)
motorPowerPin = Pin(13, Pin.OUT) #ENA pin, not picked out yet Pin(2, Pin.OUT)
motorPowerPWM = PWM(motorPowerPin)
motorPowerPWM.freq(500) #undecided
motorPowerPWM.duty(0) #undecided
dutyCycle = 800 # value between 0 and 023
#onPin1 sends a signal to the motor controller, pin N!, to move the motor one way
onPin1 = Pin(12, Pin.OUT) #N1, undecided Pin(2, Pin.OUT)
#onPin2 sends a signal to the motor controller, pin N2, to move the motor one way
onPin2 = Pin(14, Pin.OUT) #N2, undecided Pin(2, Pin.OUT)
#For solar sensors
rightSolarSensorPin = machine.Pin(36)
leftSolarSensorPin = machine.Pin(39)
solarSensorRight = ADC(rightSolarSensorPin)
solarSensorLeft = ADC(leftSolarSensorPin)
solarSensorRight.atten(ADC.ATTN_11DB)
solarSensorLeft.atten(ADC.ATTN_11DB)
#End Pin Setup
#motorTest will test the bi directional motor control
def motorTest():
motorPowerPWM.duty(950)
onPin1.value(1)
time.sleep(1)
onPin1.value(0)
onPin2.value(1)
time.sleep(1)
onPin2.value(0)
SCREEN_WIDTH = const(128)
SCREEN_HEIGHT = const(64)
paddle_width = 22
btnL = Pin(12, Pin.IN, Pin.PULL_UP)
btnR = Pin(13, Pin.IN, Pin.PULL_UP)
btnU = Pin(14, Pin.IN, Pin.PULL_UP)
btnD = Pin(2, Pin.IN, Pin.PULL_UP)
btnA = Pin(0, Pin.IN, Pin.PULL_UP)
btnB = Pin(3, Pin.IN, Pin.PULL_UP)
buzzer = Pin(15, Pin.OUT)
# configure oled display I2C SSD1306
i2c = I2C(-1, Pin(5), Pin(4)) # SCL, SDA
display = ssd1306.SSD1306_I2C(128, 64, i2c)
# ESP8266 ADC A0 values 0-1023
adc = ADC(0)
def getBtn():
pass
def pressed(btn, wait_release=False):
if not btn.value():
if btn.value():
return False
#wait for key release
while wait_release and not btn.value():
sleep_ms(5)
return True
return False
WIDTH = 128 # oled display width
HEIGHT = 32 # oled display height
sda=machine.Pin(16) # bus 0 data
scl=machine.Pin(17) # bus 0 clock
# should be 400000, 1000 prints some text
i2c=machine.I2C(0, sda=sda, scl=scl, freq=400000)
oled = SSD1306_I2C(WIDTH, HEIGHT, i2c)
# this is the built-in LED on the Pico
led = Pin(25, Pin.OUT)
# ADC0 is GPIO 26. Connect to row 10 the right side
pot = ADC(26)
MAX_DELAY = .5 # seconds
# global variables
delay = 0
def update_display(pot_value, delay):
oled.fill(0)
oled.rect(0, 0, WIDTH, HEIGHT, 1)
oled.fill_rect(1, 1, pot_value, HEIGHT - 1, 1)
oled.text(str(pot_value), 1, 1, 0)
oled.text(str(delay), 1, 10, 1)
oled.text(str(delay), 1, 20, 0)
oled.show()
from machine import Pin, DAC, ADC
from time import sleep_ms
import uos
adc = ADC(Pin(35))
adc.atten(ADC.ATTN_11DB)
dac = DAC(Pin(25))
# Checking if data directory exists
try:
uos.stat("/data")
except OSError:
print("/data does not exist, creating it...")
uos.mkdir('/data')
# Creating the file
file = open("/data/adc.txt", 'w')
# print(dac.write(255))
# print(dac.read())
for i in range(256):
dac.write(i)
x = str(adc.read())
y = str(i)
file.write(x)
file.write(" , ")
file.write(y)
file.write('\n')
print(adc.read())
sleep_ms(2)
file.close()
def __init__(self, samples, samplingFrequency, pin):
global vReal, vImag
self.samples = samples #設定採樣數
vReal = [0] * self.samples #設定儲存資料陣列
vImag = [0] * self.samples #設定儲存資料陣列
self.samplingFrequency = samplingFrequency #設定採樣頻率
self.pin = pin #設定讀取資料腳位
'''設定讀取腳位'''
adc = ADC(Pin(pin))
adc.width(ADC.WIDTH_10BIT) # 設定ADC解析度
adc.atten(ADC.ATTN_11DB) # 設定最大電壓為3.6V
#data -> windowing function (hamming) -> fft kernel -> get magnitude
'''採樣資料'''
microseconds = time.ticks_us()
samplingPeriod = round(1000000 * (1.0 / self.samplingFrequency))
for i in range(self.samples):
vReal[i] = adc.read() #收集感測器資料
#vImag[i]=0 , 第10行已建立
while (time.ticks_us() - microseconds) < samplingPeriod:
pass #確保採樣時間固定, 每 1/採樣頻率 秒收集一次資料
microseconds += samplingPeriod
'''窗函數'''
samplesMinusOne = self.samples - 1.0
for i in range(self.samples >> 1):
indexMinusOne = i / 1.0
ratio = indexMinusOne / samplesMinusOne
weighingFactor = 0.54 - (0.46 * math.cos(2 * math.pi * ratio)
) #HAMMING窗函數
vReal[i] *= weighingFactor #採樣資料逐一乘上窗函數
vReal[self.samples - (i + 1)] *= weighingFactor
'''對資料進行FFT'''
j = 0
for i in range(self.samples):
if j > i:
vReal[i], vReal[j] = vReal[j], vReal[i]
vImag[i], vImag[j] = vImag[j], vImag[i]
m = self.samples >> 1
while j >= m and m > 0:
j -= m
m >>= 1
j += m
mmax = 1
while self.samples > mmax:
istep = mmax << 1
theta = -2.0 * math.pi / istep
wtemp = math.sin(0.5 * theta)
wpr = -2.0 * wtemp * wtemp
wpi = math.sin(theta)
wr = 1.0
wi = 0.0
for m in range(mmax):
for i in range(m, self.samples, istep):
j = i + mmax
tempr = wr * vReal[j] - wi * vImag[j]
tempi = wr * vImag[j] + wi * vReal[j]
vReal[j] = vReal[i] - tempr
vImag[j] = vImag[i] - tempi
vReal[i] += tempr
vImag[i] += tempi
wtemp = wr
wr = wr * wpr - wi * wpi + wr
wi = wi * wpr + wtemp * wpi + wi
mmax = istep
'''轉換為頻率強度'''
for i in range(self.samples):
vReal[i] = math.sqrt((vReal[i])**2 + (vImag[i])**2)
class SystemBatteryLevel:
"""
Read the battery level by sampling the ADC on a pin connected
to a voltage divider. As the Pycom expansion board is using
Pin 16, this is also used on other boards as kind of a convention.
Implementation
==============
Written by Dominik Kapusta <https://github.com/ayoy>. Thanks!
Improved by Andreas Motl <https://github.com/amotl>.
License
=======
The MIT License (MIT)
Copyright (c) 2018 Dominik Kapusta
- https://kapusta.cc/2018/02/02/air-quality-monitor-revisited/
- https://github.com/ayoy/upython-aq-monitor/blob/lora/lib/adc.py
Documentation
=============
- https://docs.pycom.io/firmwareapi/pycom/machine/adc
- https://docs.pycom.io/tutorials/all/adc
More resources
==============
- https://forum.pycom.io/topic/3776/adc-use-to-measure-battery-level-vin-level
- https://github.com/hiveeyes/hiveeyes-micropython-firmware/issues/5
- https://community.hiveeyes.org/t/batterieuberwachung-voltage-divider-und-attenuation-fur-microypthon-firmware/2128
"""
# How many times to sample the ADC for making a reading.
adc_sample_count = const(1000)
def __init__(self):
"""
Initialized ADC unit.
"""
# ADC Pin to sample from.
self.pin = None
# Main resistor value (R1).
self.resistor_r1 = None
# Resistor between input pin and ground (R2).
self.resistor_r2 = None
# Reference to platform ADC object.
self.adc = None
def setup(self, settings):
self.pin = settings.get('sensors.system.vcc.pin')
self.resistor_r1 = settings.get('sensors.system.vcc.resistor_r1')
self.resistor_r2 = settings.get('sensors.system.vcc.resistor_r2')
assert type(
self.pin) is str, 'VCC Error: Voltage divider ADC pin invalid'
assert type(
self.resistor_r1
) is int, 'VCC Error: Voltage divider resistor value "resistor_r1" invalid'
assert type(
self.resistor_r2
) is int, 'VCC Error: Voltage divider resistor value "resistor_r2" invalid'
# ADC channel used for sampling the raw value.
try:
self.adc = ADC(id=0)
except TypeError:
from machine import Pin
self.adc = ADC(Pin(self.pin))
def read(self):
"""
Acquire vbatt reading by sampling ADC.
"""
# Power on ADC.
self.adc.init()
log.debug('Reading battery level on pin {} with voltage divider {}/{}'.
format(self.pin, self.resistor_r1, self.resistor_r2))
# Sample ADC a few times.
# Todo: Make attenuation factor configurable.
adc_channel = self.adc.channel(attn=ADC.ATTN_6DB, pin=self.pin)
adc_samples = [0.0] * self.adc_sample_count
adc_mean = 0.0
i = 0
irq_state = disable_irq()
while i < self.adc_sample_count:
sample = adc_channel()
adc_samples[i] = sample
adc_mean += sample
i += 1
enable_irq(irq_state)
adc_mean /= self.adc_sample_count
adc_variance = 0.0
for sample in adc_samples:
adc_variance += (sample - adc_mean)**2
adc_variance /= (self.adc_sample_count - 1)
raw_voltage = adc_channel.value_to_voltage(4095)
mean_voltage = adc_channel.value_to_voltage(int(adc_mean))
mean_variance = (adc_variance * 10**6) // (adc_mean**2)
# log.debug("ADC readings. count=%u:\n%s" %(self.adc_sample_count, str(adc_samples)))
log.debug(
"SystemBatteryLevel: Mean of ADC readings (0-4095) = %15.13f" %
adc_mean)
log.debug(
"SystemBatteryLevel: Mean of ADC voltage readings (0-%dmV) = %15.13f"
% (raw_voltage, mean_voltage))
log.debug("SystemBatteryLevel: Variance of ADC readings = %15.13f" %
adc_variance)
log.debug(
"SystemBatteryLevel: 10**6*Variance/(Mean**2) of ADC readings = %15.13f"
% mean_variance)
resistor_sum = self.resistor_r1 + self.resistor_r2
voltage_millivolt = (adc_channel.value_to_voltage(
int(adc_mean))) * resistor_sum / self.resistor_r2
voltage_volt = voltage_millivolt / 1000.0
# Shut down ADC channel.
adc_channel.deinit()
log.debug('Battery level: {}'.format(voltage_volt))
reading = {'system.voltage': voltage_volt}
return reading
def power_off(self):
"""
Shut down ADC.
"""
log.info('Turning off ADC')
self.adc.deinit()
from machine import Pin
import utime
import gc
from urequests import get
from machine import I2C
i2c = I2C(sda=Pin(23), scl=Pin(22), freq=400000)
from machine import ADC
adc = ADC(Pin(32)) # create ADC object on ADC pin
adc.read() # read value, 0-1024
print('Hello world! I can count to 10:')
for i in range(1, 11):
print(i)
def do_connect():
import network
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
if not wlan.isconnected():
print('connecting to network...')
wlan.connect('ACME', 'roadrunner')
while not wlan.isconnected():
pass
print('network config:', wlan.ifconfig())
def retrieve_url(url):
#gc.collect()
'''
from machine import ADC
import os
mch = os.uname().machine
if 'LaunchPad' in mch:
adc_pin = 'GP5'
adc_channel = 3
elif 'WiPy' in mch:
adc_pin = 'GP3'
adc_channel = 1
else:
raise Exception('Board not supported!')
adc = ADC(0)
print(adc)
adc = ADC()
print(adc)
adc = ADC(0, bits=12)
print(adc)
apin = adc.channel(adc_channel)
print(apin)
apin = adc.channel(id=adc_channel)
print(apin)
apin = adc.channel(adc_channel, pin=adc_pin)
print(apin)
apin = adc.channel(id=adc_channel, pin=adc_pin)
print(apin)
from machine import Signal, Pin, ADC
import time
ledPin2 = machine.Pin(2, machine.Pin.OUT)
Led2 = Signal(ledPin2, invert=True)
adc = ADC(0)
sensor_max = 500 # This is the max reading for my sensor, you'll need to find your max reading
while True:
stretch = sensor_max - (
adc.read() * 10
) #assign stretch to the maximum less our sensor reading
Led2.on()
time.sleep_ms(stretch)
Led2.off()
time.sleep_ms(stretch)
def setupADC(self):
self.adc = ADC()
self.adcPin = self.adc.channel(pin = 'GP3')
rtclock = RTC()
clock_adjust()
# set the regex for the uart answers
re = ure.compile("\r\nOK\r\n")
er = ure.compile("\r\nERROR\r\n")
# config the uart and see if somethings answers
uart = UART(1, baudrate=115200, pins=(TX_PIN, RX_PIN)) # uart #, baudrate, pins tx,rx
uart.write('+++')
uart.write('AT+COPS?\r\n')
time.sleep(1)
while uart.any() != 0:
print(uart.readall())
# get the battery
adc = ADC()
bat = adc.channel(pin=BAT_PIN)
# initialize Blynk
blynk = BlynkLib.Blynk(BLYNK_AUTH, server=BLYNK_SERVER)
# register virtual pin 4 (the button on the blynk that sends the temp sms right away)
blynk.add_virtual_pin(4, write=v4_write_handler)
# register my task
blynk.set_user_task(sendData, 60000)
# start Blynk (this call should never return)
blynk.run()
from machine import Pin, I2C, ADC
import ssd1306
from math import sqrt
from umqttsimple import MQTTClient
# ESP8266 Pin assignment
i2c = I2C(-1, scl=Pin(5), sda=Pin(4))
voltage_in = ADC(0)
oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)
def oled_print(value):
oled.fill(0)
oled.text('La corriente es', 0, 20)
oled.text(str(value) + ' A', 0, 30)
oled.show()
def connect():
global client_id, mqtt_server, topic_sub
client = MQTTClient(client_id, mqtt_server)
client.connect()
return client
def restart_and_reconnect():
print('Failed to connect to MQTT broker. Reconnecting...')
time.sleep(5)
def __init__(self,pin):
self.adc=ADC(Pin(pin))
self.adc.atten(ADC.ATTN_11DB)
def __init__(self, pin_name):
adc = ADC()
self.pin = adc.channel(pin=pin_name, attn=ADC.ATTN_11DB, bits=12)
self.threshold = None
#importing the required libraries from machine import Pin, ADC, PWM from time import sleep # defining the pin arrangement led_red = Pin(39, Pin.OUT) button_red= Pin(36, Pin.IN) #Configure ADC for ESP32 pot_green = ADC(Pin(2)) pot_green.width(ADC.WIDTH_10BIT) pot_green.atten(ADC.ATTN_11DB) green_pwm = PWM(Pin(26),5000) #frequency=5000Hz while True: button_state = button_red.value() led_red.value(button_state) pot_value = pot_green.read() green_pwm.duty(pot_value) sleep(0.1) #delay
class ADCSensor:
def __init__(self,pin):
self.adc=ADC(Pin(pin))
self.adc.atten(ADC.ATTN_11DB)
def read(self):
return self.adc.read()
import time
import sys
import os
import gc
from machine import Pin
from machine import ADC
#detect pin from esp32
adc = ADC(0)
led = Pin(14, Pin.OUT)
#func ldr
def readLdr():
lumPerct = (adc.read())
return lumPerct
def sub_cb(topic, msg):
print((topic, msg))
if topic == b'notification' and msg == b'received':
print('ESP received hello message')
def connect_and_subscribe():
global client_id, mqtt_server, topic_sub
client = MQTTClient(client_id, mqtt_server)
client.set_callback(sub_cb)
client.connect()
client.subscribe(topic_sub)
print('Connected to %s MQTT broker, subscribed to %s topic' %
(mqtt_server, topic_sub))
return client
else:
indicatorLed.value(1)
if int(msg.value) == 1:
print("Switching indicator led on");
else:
print("Switching indicator led off");
elif msg.channel == illuminationLedChannel:
if int(msg.value) == 1:
print("Switching illumination led on");
else:
print("Switching illumination led off");
illuminationLed.value(int(msg.value))
return
# create adc and the led object
adc = ADC(0)
count=0
ledValue=0
# switch LED off
illuminationLed.value(0) # active high
indicatorLed.value(1) # active low
client = cayenne.client.CayenneMQTTClient()
client.begin(MQTT_USERNAME, MQTT_PASSWORD, MQTT_CLIENT_ID, loglevel=logging.INFO)
# register callback
client.on_message=on_message
timestamp = 0
while True:
client.loop()
lightIntensity = adc.read()
from machine import ADC
import time
adc = ADC(0)
adc_c = adc.channel(pin='P13')
while True:
value = adc_c.value()
print("ADC value:" + str(value))
time.sleep(1)
# 1st GREEN: WiFi connected
# blinking YELLOW: syncing time
# 4x GREEN: boot process done
######################################
# Set up neopixel and turn off
np = Neopixel(Pin(26), 1, 0)
np.set(0,0,0,0)
for _ in range(2):
np.set(0,B,0,0)
time.sleep(0.1)
np.set(0,0,0,0)
# Set up ADC for ACS712 sensor
acs712 = ADC(Pin(ADC5))
acs712.atten(ADC.ATTN_11DB)
# Capture start time
startTime = round(time.time())
# Check network connection
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
ip = wlan.ifconfig()[0]
if ip == '0.0.0.0':
print("no wifi connection")
for _ in range(10):
np.set(0,R,0,0)
time.sleep(0.1)
np.set(0,0,0,0)
# Complete project details at https://RandomNerdTutorials.com # Created by Rui Santos from machine import Pin, ADC, PWM from time import sleep led = Pin(2, Pin.OUT) button = Pin(15, Pin.IN) #Configure ADC for ESP32 pot = ADC(Pin(34)) pot.width(ADC.WIDTH_10BIT) pot.atten(ADC.ATTN_11DB) #Configure ADC for ESP8266 #pot = ADC(0) led_pwm = PWM(Pin(4),5000) while True: button_state = button.value() led.value(button_state) pot_value = pot.read() led_pwm.duty(pot_value) sleep(0.1)
