thonny更新固件和手机远程点灯
本帖最后由 得劲滋润爽 于 2023-6-2 13:30 编辑thonny更新固件和手机远程点灯
板子：合宙ESP32-C3简约版
thonny：4.0.2
MQTT服务器：broker.emqx.io
在线调试助手：http://www.emqx.io/online-mqtt-client
手机APP：IOT MQTT panel
micropython固件：esp32c3-usb-20230426-v1.20.0
我的板子是已经有固件了，并且可以正常使用，如果你的条件不满足请使用乐鑫官方的flash_download_tool进行固件的烧写。（社区搜索ESP32 C3能搜到教程）
一、连接板子，烧写固件
报错了
[*]
按住boot键再插数据线试一下
OK了，如果还是失败或者刷完固件无法正常运行可以再尝试重新烧写一次，还不行就请使用乐鑫官方的烧写工具进行烧写固件。！
二、测试MQTT通信
'''
实验名称：MQTT通信
版本：v1.1
日期：2023.5
改编：maikemaker
说明：编程实现MQTT通信，实现接收到消息后打印出消息和topic并且往另一个topic发送一条消息
MQTT助手：http://www.emqx.io/online-mqtt-client
'''
import network,time
from simple import MQTTClient #导入MQTT板块
from machine import Pin,Timer
#WIFI连接函数
def WIFI_Connect():
WIFI_LED=Pin(12, Pin.OUT) #初始化WIFI指示灯
wlan = network.WLAN(network.STA_IF) #STA模式
wlan.active(True) #激活接口
start_time=time.time() #记录时间做超时判断
if not wlan.isconnected():
print('connecting to network...')
wlan.connect('waoo2111280', 'waoo2111280') #输入WIFI账号密码
while not wlan.isconnected():
#LED闪烁提示
WIFI_LED.value(1)
time.sleep_ms(300)
WIFI_LED.value(0)
time.sleep_ms(300)
#超时判断,15秒没连接成功判定为超时
if time.time()-start_time > 15 :
print('WIFI Connected Timeout!')
wlan.active(False) #反激活WiFi
break
if wlan.isconnected():
#LED点亮
WIFI_LED.value(1)
#串口打印信息
print('network information:', wlan.ifconfig())
return True
else:
return False
#MQTT发布数据任务
def MQTT_Send(tim):
client.publish(TOPIC2, 'Im fine.Thanks')
#设置MQTT回调函数,有信息时候执行
def MQTT_callback(topic, msg):
print('topic: {}'.format(topic))
print('msg: {}'.format(msg))
MQTT_Send(None) #调用MQTT_Send()函数
#接收数据任务
def MQTT_Rev(tim):
client.check_msg()
#执行WIFI连接函数并判断是否已经连接成功
if WIFI_Connect():
SERVER = 'broker.emqx.io'# MQTT服务器
PORT = 1883 #端口
CLIENT_ID = '202306021143' # 客户端ID
程序效果，给接收的话题发送一个消息，接收到之后串口打印消息并给回复的话题回复一条消息。
上传MQTT库
import usocket as socket
import ustruct as struct
from ubinascii import hexlify
class MQTTException(Exception):
pass
class MQTTClient:
def __init__(self, client_id, server, port=0, user=None, password=None, keepalive=0,
ssl=False, ssl_params={}):
if port == 0:
port = 8883 if ssl else 1883
self.client_id = client_id
self.sock = None
self.server = server
self.port = port
self.ssl = ssl
self.ssl_params = ssl_params
self.pid = 0
self.cb = None
self.user = user
self.pswd = password
self.keepalive = keepalive
self.lw_topic = None
self.lw_msg = None
self.lw_qos = 0
self.lw_retain = False
def _send_str(self, s):
self.sock.write(struct.pack("!H", len(s)))
self.sock.write(s)
def _recv_len(self):
n = 0
sh = 0
while 1:
b = self.sock.read(1)
n |= (b & 0x7f) << sh
if not b & 0x80:
return n
sh += 7
def set_callback(self, f):
self.cb = f
def set_last_will(self, topic, msg, retain=False, qos=0):
assert 0 <= qos <= 2
assert topic
self.lw_topic = topic
self.lw_msg = msg
self.lw_qos = qos
self.lw_retain = retain
def connect(self, clean_session=True):
self.sock = socket.socket()
addr = socket.getaddrinfo(self.server, self.port)[-1]
self.sock.connect(addr)
if self.ssl:
import ussl
self.sock = ussl.wrap_socket(self.sock, **self.ssl_params)
premsg = bytearray(b"\x10\0\0\0\0\0")
msg = bytearray(b"\x04MQTT\x04\x02\0\0")
sz = 10 + 2 + len(self.client_id)
msg = clean_session << 1
if self.user is not None:
sz += 2 + len(self.user) + 2 + len(self.pswd)
msg |= 0xC0
if self.keepalive:
assert self.keepalive < 65536
msg |= self.keepalive >> 8
msg |= self.keepalive & 0x00FF
if self.lw_topic:
sz += 2 + len(self.lw_topic) + 2 + len(self.lw_msg)
msg |= 0x4 | (self.lw_qos & 0x1) << 3 | (self.lw_qos & 0x2) << 3
msg |= self.lw_retain << 5
i = 1
while sz > 0x7f:
premsg = (sz & 0x7f) | 0x80
sz >>= 7
i += 1
premsg = sz
self.sock.write(premsg, i + 2)
self.sock.write(msg)
#print(hex(len(msg)), hexlify(msg, ":"))
self._send_str(self.client_id)
if self.lw_topic:
self._send_str(self.lw_topic)
self._send_str(self.lw_msg)
if self.user is not None:
self._send_str(self.user)
self._send_str(self.pswd)
resp = self.sock.read(4)
assert resp == 0x20 and resp == 0x02
if resp != 0:
raise MQTTException(resp)
return resp & 1
def disconnect(self):
self.sock.write(b"\xe0\0")
self.sock.close()
def ping(self):
self.sock.write(b"\xc0\0")
def publish(self, topic, msg, retain=False, qos=0):
pkt = bytearray(b"\x30\0\0\0")
pkt |= qos << 1 | retain
sz = 2 + len(topic) + len(msg)
if qos > 0:
sz += 2
assert sz < 2097152
i = 1
while sz > 0x7f:
pkt = (sz & 0x7f) | 0x80
sz >>= 7
i += 1
pkt = sz
#print(hex(len(pkt)), hexlify(pkt, ":"))
self.sock.write(pkt, i + 1)
self._send_str(topic)
if qos > 0:
self.pid += 1
pid = self.pid
struct.pack_into("!H", pkt, 0, pid)
self.sock.write(pkt, 2)
self.sock.write(msg)
if qos == 1:
while 1:
op = self.wait_msg()
if op == 0x40:
sz = self.sock.read(1)
assert sz == b"\x02"
rcv_pid = self.sock.read(2)
rcv_pid = rcv_pid << 8 | rcv_pid
if pid == rcv_pid:
return
elif qos == 2:
assert 0
def subscribe(self, topic, qos=0):
assert self.cb is not None, "Subscribe callback is not set"
pkt = bytearray(b"\x82\0\0\0")
self.pid += 1
struct.pack_into("!BH", pkt, 1, 2 + 2 + len(topic) + 1, self.pid)
#print(hex(len(pkt)), hexlify(pkt, ":"))
self.sock.write(pkt)
self._send_str(topic)
self.sock.write(qos.to_bytes(1, "little"))
while 1:
op = self.wait_msg()
if op == 0x90:
resp = self.sock.read(4)
#print(resp)
assert resp == pkt and resp == pkt
if resp == 0x80:
raise MQTTException(resp)
return
# Wait for a single incoming MQTT message and process it.
# Subscribed messages are delivered to a callback previously
# set by .set_callback() method. Other (internal) MQTT
# messages processed internally.
def wait_msg(self):
res = self.sock.read(1)
self.sock.setblocking(True)
if res is None:
return None
if res == b"":
raise OSError(-1)
if res == b"\xd0":# PINGRESP
sz = self.sock.read(1)
assert sz == 0
return None
op = res
if op & 0xf0 != 0x30:
return op
sz = self._recv_len()
topic_len = self.sock.read(2)
topic_len = (topic_len << 8) | topic_len
topic = self.sock.read(topic_len)
sz -= topic_len + 2
if op & 6:
pid = self.sock.read(2)
pid = pid << 8 | pid
sz -= 2
msg = self.sock.read(sz)
self.cb(topic, msg)
if op & 6 == 2:
pkt = bytearray(b"\x40\x02\0\0")
struct.pack_into("!H", pkt, 2, pid)
self.sock.write(pkt)
elif op & 6 == 4:
assert 0
# Checks whether a pending message from server is available.
# If not, returns immediately with None. Otherwise, does
# the same processing as wait_msg.
def check_msg(self):
self.sock.setblocking(False)
return self.wait_msg()
新建文件，输入上面的代码，点击保存，选择保存到micropython设备，文件名simple.py
打开文件视图
运行程序
打开调试助手，进行调试
订阅程序里面的两个主题（Topic）
效果
三、点灯测试
'''
实验名称：MQTT通信
版本：v1.1
日期：2023.6
改编：maikemaker
说明：点灯测试
MQTT助手：http://www.emqx.io/online-mqtt-client
'''
import network,time
from simple import MQTTClient #导入MQTT板块
from machine import Pin,Timer
led=Pin(13,Pin.OUT,value=0)
#WIFI连接函数
def WIFI_Connect():
WIFI_LED=Pin(12, Pin.OUT) #初始化WIFI指示灯
wlan = network.WLAN(network.STA_IF) #STA模式
wlan.active(True) #激活接口
start_time=time.time() #记录时间做超时判断
if not wlan.isconnected():
print('connecting to network...')
wlan.connect('waoo2111280', 'waoo2111280') #输入WIFI账号密码
while not wlan.isconnected():
#LED闪烁提示
WIFI_LED.value(1)
time.sleep_ms(300)
WIFI_LED.value(0)
time.sleep_ms(300)
#超时判断,15秒没连接成功判定为超时
if time.time()-start_time > 15 :
print('WIFI Connected Timeout!')
wlan.active(False) #反激活WiFi
break
if wlan.isconnected():
#LED点亮
WIFI_LED.value(1)
#串口打印信息
print('network information:', wlan.ifconfig())
return True
else:
return False
#MQTT发布数据任务
def MQTT_Send(tim):
client.publish(TOPIC2, 'Im fine.Thanks')
#设置MQTT回调函数,有信息时候执行
def MQTT_callback(topic, msg):
print('topic: {}'.format(topic))
print('msg: {}'.format(msg))
if msg==b'on':
led.value(1)
if msg==b'off':
led.value(0)
MQTT_Send(None) #调用MQTT_Send()函数
#接收数据任务
def MQTT_Rev(tim):
client.check_msg()
#执行WIFI连接函数并判断是否已经连接成功
if WIFI_Connect():
SERVER = 'broker.emqx.io'# MQTT服务器
PORT = 1883
CLIENT_ID = '202306021143' # 客户端ID
#话题1
TOPIC = '/T1/test/1' # TOPIC名称，接收消息的主题
#话题2
TOPIC2 = '/T2/test/2' # TOPIC名称，回复的主题
client = MQTTClient(CLIENT_ID, SERVER, PORT)
client.set_callback(MQTT_callback)#配置回调函数
client.connect()
client.subscribe(TOPIC) #订阅主题
#开启RTOS定时器，编号为0或2,周期1000ms，执行MQTT发布
tim = Timer(0)
tim.init(period=300, mode=Timer.PERIODIC,callback=MQTT_Rev)
设置APP
添加两个按钮
测试
效果还不错吧
试一下开关控件
效果也不错。
不想用blynk和点灯的可以试试这个APP。
页:
[1]