My code
import time
import machine
import network
import ujson
from simple1 import MQTTClient
SSID = b'Exxxye'
PASS = b'8xxx766'
CLIENT_ID = b'ixxxxxxxxxxxx6eb63'
AWS_ENDPOINT = b'xxxxx-1.amazonaws.com'
PUB_TOPIC = b'temperature'
SUB_TOPIC = b'temperature'
with open('/pri.der', 'rb') as f:
DEV_KEY = f.read()
with open('/cert.der', 'rb') as f:
DEV_CRT = f.read()
light = machine.Pin("LED", machine.Pin.OUT)
light.off()
def wifi_connect():
print('Connecting to wifi...')
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(SSID, PASS)
while wlan.isconnected() == False:
light.on()
print('Waiting for connection...')
time.sleep(0.5)
light.off()
time.sleep(0.5)
print('Connection details: %s' % str(wlan.ifconfig()))
def mqtt_subscribe_callback(topic, msg):
print("Received topic: %s message: %s" % (topic, msg))
if topic == SUB_TOPIC:
mesg = ujson.loads(msg)
if 'state' in mesg.keys():
if mesg['state'] == 'on' or mesg['state'] == 'ON' or mesg['state'] == 'On':
light.on()
print('Light is ON')
else:
light.off()
print('Light is OFF')
def get_rpi_temperature():
sensor = machine.ADC(4)
voltage = sensor.read_u16() * (3.3 / 65535)
temperature = 27 - (voltage - 0.706) / 0.001721
return temperature
wifi_connect()
mqtt = MQTTClient(
client_id=CLIENT_ID,
server=AWS_ENDPOINT,
port=8883,
keepalive=120,
ssl=True,
ssl_params={'key':DEV_KEY, 'cert':DEV_CRT, 'server_side':False})
mqtt.connect()
mqtt.set_callback(mqtt_subscribe_callback)
mqtt.subscribe(SUB_TOPIC)
while True:
message = b'{"temperature":%s, "temperature_unit":"Degrees Celsius"}' % get_rpi_temperature()
print('Publishing topic %s message %s' % (PUB_TOPIC, message))
mqtt.publish(topic=PUB_TOPIC, msg=message, qos=1)
# Check subscriptions for message
mqtt.check_msg()
time.sleep(5)
My error code:
Connecting to wifi...
Connection details: ('192.168.x.xx', '255.255.255.0', '192.168.xx.xx', '192.168.xx.xx')
dbug-msg: 0x9 b'04:4d:51:54:54:04:02:00:78'
dbug-resp: b''
Traceback (most recent call last):
File "<stdin>", line 81, in <module>
File "simple1.py", line 92, in connect
IndexError: bytes index out of range
please someone help me on this..i tried everything
Hi, I'm quite new to micropython. I have flashed the 1.9.2 version on my Lolin v3 (Nodemcu 12e).
I load the code using ampy command, then open terminal with Putty, and reset the board. i get this error while trying to use the sentence "connect()":
Traceback (most recent call last):
File "main.py", line 44, in <module>
File "umqtt/simple.py", line 56, in connect
OSError: [Errno 103] ECONNABORTED
MicroPython v1.9.2-8-gbf8f45cf on 2017-08-23; ESP module with ESP8266
import time
import machine
import network
import gc
import dht
from umqtt.robust import MQTTClient
#DHT PIN
d = dht.DHT11(machine.Pin(14))
led = machine.Pin(16, machine.Pin.OUT)
gc.enable()
def do_connect():
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
if not wlan.isconnected():
print('connecting to network...')
wlan.connect('SSID', 'PASSWORD')
while not wlan.isconnected():
pass
print('network config:', wlan.ifconfig())
for i in range(20):
do_connect()
thingspeakChannelId = "MyChannelID" # Thingspeak Channel ID
thingspeakChannelWriteapi = "MyWriteKey" # Write API Key
myMqttClient = "esp8266_mp"
thingspeakIoUrl = "mqtt.thingspeak.com"
publishPeriodInSec = 15
print("Control 1")
c = MQTTClient(myMqttClient, thingspeakIoUrl, 1883)
print("Control 2")
d.measure()
temp = d.temperature()
humidity = d.humidity()
print("Control 3")
credentials = "channels/{:s}/publish/{:s}".format(thingspeakChannelId, thingspeakChannelWriteapi)
print("Control 4")
payload = "field1={:.1f}&field2={:.1f}\n".format(temp, humidity)
print("Control 5")
c.connect() #HERE
print("Control 6")
c.publish(credentials, payload)
print("Control 7")
for i in range(5):
led.low()
time.sleep(0.05)
led.high()
time.sleep(0.05)
print("Sending data...", gc.mem_free())
time.sleep(publishPeriodInSec)
c.disconnect()
machine.reset()
Thanks for your time, if there is any problem regarding the information or post structure, tell me and I will try to fix it.
This github issue tracker is mainly for bug reports and code improvements. The report here is more of a problem using the libraries, and help in this area is best asked at https://forum.micropython.org. So please try to ask your question there (or maybe someone had the same issue and already fixed it).
Otherwise, the general thing to try is to verify you have internet connectivity, eg:
>>> import socket
>>> socket.getaddrinfo('micropython.org', 80)
Thank you for the reply, I will move this question right now. PS: I checked and yes, i got internet connectivity. Reply: [(2, 1, 0, '', ('176.58.119.26', 80))]
try first time MicroPython
MQTT TLS ( ssl=True)
and can not connect
env: MicroPython v1.23.0 on 2024-06-02; Raspberry Pi Pico W with RP2040
also test: MicroPython v1.24.0-preview.335.gb08ddbba5 on 2024-09-20; Raspberry Pi Pico W with RP2040
from umqtt.simple import MQTTClient # Metadata-Version: 2.1 Name: umqtt.simple Version: 1.4.0
error:
Traceback (most recent call last):
File "<stdin>", line 47, in <module>
File "/lib/umqtt/simple.py", line 68, in connect
AttributeError: 'bool' object has no attribute 'wrap_socket'
do i need a other /lib/ ?
no, a better code did it:
