上传腾讯云-微信小程序通信数据的属性值：
ds18b20_max  温度阀值   读写权限  整型
adc_hp_max   水质阀值   读写权限  整型
time_food    增氧间隔   读写权限  整型
auto_mode    控制模式   读写权限  布尔类型
water_hp     水质       只读权限  整型
temp_data    水温		只读权限  浮点数类型
BH1750       光强		只读权限  整型
MQ135        氨气  		只读权限  整型
oxygen_sw    增氧控制   读写权限  布尔类型
heat_sw      加热控制   读写权限  布尔类型
led_sw       照明灯控制 读写权限  布尔类型

$thing/up/property/2ZYN8YF7CM/${deviceName}	   发布	属性上报
$thing/up/property/2ZYN8YF7CM/${deviceName}	订阅	属性下发与属性上报响应

产品密匙：WCk1aGDvGyg34+KolnKMqw==
产品ID：2ZYN8YF7CM

目前物联网通信支持 MQTT 标准协议接入(兼容3.1.1版本协议)，具体的协议请参见 MQTT 3.1.1 协议文档。
和标准 MQTT 区别

支持 MQTT 的 PUB、SUB、PING、PONG、CONNECT、DISCONNECT、UNSUB 等报文。
支持 cleanSession。
不支持 will、retain msg。
不支持 QOS2。

#!/usr/bin/python

-- coding: UTF-8 --
import base64

import hashlib

import hmac

import random

import string

import time

import sys
生成指定长度的随机字符串
def RandomConnid(length):

return  ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(length))
生成接入物联网通信平台需要的各参数
def IotHmac(productID, devicename, devicePsk):

# 1. 生成 connid 为一个随机字符串，方便后台定位问题

connid   = RandomConnid(5)

# 2. 生成过期时间，表示签名的过期时间,从纪元1970年1月1日 00:00:00 UTC 时间至今秒数的 UTF8 字符串

#  将当前时间往后推迟5年

expiry   = int(time.time()) + 5 * 365 * 24 * 60 * 60

# 3. 生成 MQTT 的 clientid 部分, 格式为 {productid}{devicename}

clientid = "{}{}".format(productID, devicename)

# 4. 生成 MQTT 的 username 部分, 格式为 {clientid};{sdkappid};{connid};{expiry}

username = "{};12010126;{};{}".format(clientid, connid, expiry)

# 5. 对 username 进行签名，生成token

secret_key = devicePsk.encode('utf-8')  # convert to bytes

data_to_sign = username.encode('utf-8')  # convert to bytes

secret_key = base64.b64decode(secret_key)  # this is still bytes

token = hmac.new(secret_key, data_to_sign, digestmod=hashlib.sha256).hexdigest()

# 6. 根据物联网通信平台规则生成 password 字段

password = "{};{}".format(token, "hmacsha256")

return {

"clientid" : clientid,

"username" : username,

"password" : password

}

if name == 'main':

# 参数分别填入: 产品ID,设备名称,设备密匙

print(IotHmac("2ZYN8YF7CM","dev1","WCk1aGDvGyg34+KolnKMqw=="))

{'clientid': '2ZYN8YF7CMdev1', 'username': '2ZYN8YF7CMdev1;12010126;HULWJ;1705853339', 'password': '26725d9cf937e3d054cc51fa91338d81ddebc072ae1fa65c564a068d8bb3e0c7;hmacsha256'}

clientid: 2ZYN8YF7CMdev1

username: 2ZYN8YF7CMdev1;12010126;HULWJ;1705853339

password: 26725d9cf937e3d054cc51fa91338d81ddebc072ae1fa65c564a068d8bb3e0c7;hmacsha256

thing/up/property/2ZYN8YF7CM/dev1</code></pre></div></div><p><strong>主题发布：</strong></p><div class="rno-markdown-code"><div class="rno-markdown-code-toolbar"><div class="rno-markdown-code-toolbar-info"><div class="rno-markdown-code-toolbar-item is-type"><span class="is-m-hidden">代码语言：</span>javascript</div></div><div class="rno-markdown-code-toolbar-opt"><div class="rno-markdown-code-toolbar-copy"><i class="icon-copy"></i><span class="is-m-hidden">复制</span></div></div></div><div class="developer-code-block"><pre class="prism-token token line-numbers language-javascript"><code class="language-javascript" style="margin-left:0">thing/down/property/2ZYN8YF7CM/dev1

{"method":"report","clientToken":"123","params":{"ds18b20_max":20,"adc_hp_max":20,"time_food":5,"auto_mode":1,"water_hp":80,"temp_data":12.5,"BH1750":300,"MQ135":20,"oxygen_sw":1,"heat_sw":0,"led_sw":0}}

2ZYN8YF7CM.iotcloud.tencentdevices.com

IP地址:175.178.30.200

端口号:1883

客户端ID: 2ZYN8YF7CMdev1

用户名: 2ZYN8YF7CMdev1;12010126;HULWJ;1705853339

密码:  26725d9cf937e3d054cc51fa91338d81ddebc072ae1fa65c564a068d8bb3e0c7;hmacsha256

订阅主题: $thing/down/property/2ZYN8YF7CM/dev1

发布主题: $thing/up/property/2ZYN8YF7CM/dev1

发布数据格式:

{"method":"report","clientToken":"123","params":{"ds18b20_max":20,"adc_hp_max":20,"time_food":5,"auto_mode":1,"water_hp":80,"temp_data":12.5,"BH1750":300,"MQ135":20,"oxygen_sw":1,"heat_sw":0,"led_sw":0}}

len:129,Data:
thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530389322mbXir::5NMCGSjgp","params":{"ds18b20_max":21}}
len:125,Data:$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530388538MKtZG::67Y#YRmFN","params":{"time_food":6}}
len:128,Data:
thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530389322sDtoc::EnQpzyukd","params":{"adc_hp_max":22}}

len:125,Data:$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530388538PaAHn::@KgWjdE1V","params":{"auto_mode":0}}

len:125,Data:$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530388538XYQqA::WsGV4K0uo","params":{"auto_mode":1}}

len:127,Data:$$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2529763559fdKIy::addUie4XDm","params":{"oxygen_sw":0}}

len:125,Data:$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2529763559OmPZY::vkCb-o5o%","params":{"oxygen_sw":1}}

len:124,Data:$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2529763559GCZHF::o3Zg6m9sEq","params":{"heat_sw":1}}

len:123,Data:thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530389322DuDjB::CgY5Gx8Z","params":{"heat_sw":0}}

len:123,Data:$thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2529763559opcLp::MdJWtA8ai7","params":{"led_sw":1}}

len:122,Data:thing/down/property/2ZYN8YF7CM/dev1{"method":"control","clientToken":"v2530389322SZvJM::GYX7QTT#","params":{"led_sw":0}}

硬件连接方式:

【1】 TFT 1.44 寸彩屏接线

GND   电源地

VCC   接5V或3.3v电源

SCL   接PC8（SCL）

SDA   接PC9（SDA）

RST   接PC10

DC    接PB7

CS    接PB8

BL	  接PB11
【2】BC26-NBIOT模块

PA2(TX)--RXD 模块接收脚

PA3(RX)--TXD 模块发送脚

GND---GND 地

VCC---VCC 电源（5.0V）
【3】DS18B20温度传感器

VCC--VCC

GND---GND

DAT---PB3
【4】鱼缸加热棒--继电器控制

GND----GND

VCC---3.3V

OUT---PB4
【5】增氧泵--继电器控制

GND----GND

VCC---3.3V

OUT---PC11
【6】水质传感器（ADC通道1）

VCC--->5V

GND--->GND

DAT--->PA1
【7】氨气采集传感器（ADC通道4）

VCC--->5V

GND--->GND

DAT--->PA4
【8】板载LED灯接线

LED1---PA8

LED2---PD2 （被串口占用）
【9】板载按键接线

K0---PA0

K1---PC5

K2---PA15
【10】LED指示灯

LED1--PA5  红色灯--表示报警异常

LED2--PA6  绿色灯--表示系统正常

LED3--PA7  白色灯--照明
【11】环境光检测检测：BH1750数字传感器

SDA-----PB5

SCL-----PB6

GND---GND 地

VCC---VCC 电源（3.3V~5.0V）

#include "hal_uart.h"

#include "stm32f0xx_usart.h"

//接收串口数据的回调函数

static void (*halUartOnIRQ)(unsigned char byte) = 0;
static void halUartGpioInit(void);

static void halUartParamInit(unsigned long baudrate);

static void halUartIRQInit(void);
/*


串口通信初始化



@param baudrate - 串口通信波特率

*/

void halUartInit(unsigned long baudrate)

{

halUartGpioInit();
halUartParamInit(baudrate);
halUartIRQInit();

}


/*

注册接收串口数据的回调函数

@param onIRQ - 回调函数，接收到串口数据时自动调用此函数

*/

void halUartSetIRQCallback(void (*onIRQ)(unsigned char byte))

{

halUartOnIRQ = onIRQ;

}

/*

向串口发送信息

@param buf - 待发送的信息的存储地址
@param len - 待发送的信息的数据长度

*/

void halUartWrite(const unsigned char *buf, unsigned int len)

{

for (unsigned int i = 0; i < len; i++) {

USART_SendData(USART1, buf[i]);

while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);

}

}

/*


初始化串口通信相关的GPIO

*/

void halUartGpioInit()

{

//配置结构体

GPIO_InitTypeDef uart1Tx;

GPIO_InitTypeDef uart1Rx;
/* TX */

uart1Tx.GPIO_Pin = GPIO_Pin_9,//PA9作为TX

uart1Tx.GPIO_Speed = GPIO_Speed_10MHz,//通信频率

uart1Tx.GPIO_Mode = GPIO_Mode_AF,

uart1Tx.GPIO_PuPd = GPIO_PuPd_NOPULL,
/* RX */

uart1Rx.GPIO_Pin = GPIO_Pin_10,//PA10作为RX

uart1Rx.GPIO_Speed = GPIO_Speed_10MHz,//通信频率

uart1Rx.GPIO_Mode = GPIO_Mode_AF,

uart1Rx.GPIO_PuPd = GPIO_PuPd_NOPULL,
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1);

GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);
GPIO_Init(GPIOA, &uart1Tx);

GPIO_Init(GPIOA, &uart1Rx);

}


/*


初始化串口通信配置


@param baudrate - 串口通信波特率

*/

void halUartParamInit(unsigned long baudrate)

{

USART_InitTypeDef uartConfig;
uartConfig.USART_BaudRate = baudrate;

uartConfig.USART_WordLength = USART_WordLength_8b;

uartConfig.USART_Parity = USART_Parity_No;

uartConfig.USART_StopBits = USART_StopBits_1;

uartConfig.USART_HardwareFlowControl = USART_HardwareFlowControl_None;

uartConfig.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
USART_Init(USART1, &uartConfig);

USART_Cmd(USART1, ENABLE);

}


/*


初始化串口通信的中断请求

*/

void halUartIRQInit()

{

NVIC_InitTypeDef uartNVIC;
uartNVIC.NVIC_IRQChannel = USART1_IRQn;

uartNVIC.NVIC_IRQChannelPriority = 0;

uartNVIC.NVIC_IRQChannelCmd = ENABLE;
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

USART_ITConfig(USART1, USART_IT_TC, ENABLE);
NVIC_Init(&uartNVIC);

}


/*


串口通信中断处理函数。当串口接收到数据时，便会自动产生中断并执行此函数

*/

void USART1_IRQHandler(void)

{

unsigned char byte = 0;
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) {

byte = USART_ReceiveData(USART1); // Auto to clear RXNE flag when read!
  if (halUartOnIRQ != 0) halUartOnIRQ(byte);

}

else USART_ClearFlag(USART1,USART_FLAG_TC);

}

#include "hal_adc.h"



#include "stm32f0xx_adc.h"
/*


ADC初始化

*/

void halAdcInit()

{

GPIO_InitTypeDef gpioCfg;

ADC_InitTypeDef adcCfg;
/* PA0 */

gpioCfg.GPIO_Pin  = GPIO_Pin_1;

gpioCfg.GPIO_Mode = GPIO_Mode_AN;

gpioCfg.GPIO_PuPd = GPIO_PuPd_NOPULL;
ADC_StructInit(&adcCfg);

adcCfg.ADC_Resolution = ADC_Resolution_8b;

adcCfg.ADC_ContinuousConvMode = DISABLE;

adcCfg.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;

adcCfg.ADC_DataAlign = ADC_DataAlign_Right;

adcCfg.ADC_ScanDirection = ADC_ScanDirection_Backward;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
RCC_ADCCLKConfig(RCC_ADCCLK_PCLK_Div4);
ADC_DeInit(ADC1);
GPIO_Init(GPIOA, &gpioCfg);
ADC_Init(ADC1, &adcCfg);
/* Convert the ADC1 Vref  with 55.5 Cycles as sampling time */

ADC_ChannelConfig(ADC1, ADC_Channel_1, ADC_SampleTime_55_5Cycles);
ADC_GetCalibrationFactor(ADC1);

ADC_DMACmd(ADC1, ENABLE);
ADC_Cmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADEN));
ADC_StartOfConversion(ADC1);

}


/*

*读取ADC值

*

*@return ADC值

*/

unsigned int halAdcRead()

{

ADC_StartOfConversion(ADC1);
while(ADC_GetFlagStatus(ADC1,ADC_FLAG_EOC) == RESET);

return ADC_GetConversionValue(ADC1);

}

#include "hal_oled12864.h"

#include "font_v_8x16.h"

#include "hal_lcd_spi.h"

#include "hal_system.h"
#include "stm32f0xx_gpio.h"
typedef unsigned char uint8;

typedef unsigned short uint16;
static void halOLED12864Reset(void);

static void halOLED12864ChipInit(void);

static void halOLED12864SetPosition(uint8 page, uint8 x);
static void halOLEDShowChar8x16(uint16 x, uint16 page, uint8 ch);
void halOLED12864Init(void)

{

/* Init SPI-GPIO */

halLcdSpiInit();
/* Init Chip */
halOLED12864ChipInit();

/* Setting */
halOLED12864ClearScreen();
halOLED12864SetPosition(0,0);

}
void halOLED12864ClearScreen(void)

{

uint8 page, x;
for (page = 0; page < HAL_OLED12864_PAGE; page++) {
    halLcdSpiTxCmd(0xb0 + page);
    halLcdSpiTxCmd(0x01);
    halLcdSpiTxCmd(0x10);
    
    for (x = 0; x < HAL_OLED12864_X; x++) halLcdSpiTxData(0);
}

}
void halOLED12864ShowX16(uint8 line, uint8 column, const uint8 *str)

{

if (!str || line > 3) return;
uint8 page = line * 2;    // 2 page per line
const uint8 *ptext = str; // text

/* Show text */
while(*ptext != 0) {
    /* ASCII Code: 0~127 */
    if((*ptext) < 128) {
        /* End of line */
        if((column + 8) > HAL_OLED12864_X) return;
      
        /* Show 8x16 ASCII Char. */
        halOLEDShowChar8x16(column, page, *ptext);
        column += 8;
        
        ptext++;
    }
} /* while(*ptext != 0) */

}
static void halOLED12864Reset(void)

{

#ifdef STM32F030x8

/* RST: PA12 */

GPIO_InitTypeDef  lcdGPIO;
lcdGPIO.GPIO_Mode = GPIO_Mode_OUT;
lcdGPIO.GPIO_Speed = GPIO_Speed_2MHz;
lcdGPIO.GPIO_Pin = GPIO_Pin_12;

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

GPIO_Init(GPIOA, &lcdGPIO);

/* Reset OLED12864 */
GPIO_ResetBits(GPIOA, GPIO_Pin_12);

halSystemDelayUs(60000);

GPIO_SetBits(GPIOA, GPIO_Pin_12);

#else

/* RST: PA3 */

GPIO_InitTypeDef  lcdGPIO;
lcdGPIO.GPIO_Mode = GPIO_Mode_OUT;
lcdGPIO.GPIO_Speed = GPIO_Speed_2MHz;
lcdGPIO.GPIO_Pin = GPIO_Pin_3;

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

GPIO_Init(GPIOA, &lcdGPIO);

/* Reset OLED12864 */
GPIO_ResetBits(GPIOA, GPIO_Pin_3);

halSystemDelayUs(60000);

GPIO_SetBits(GPIOA, GPIO_Pin_3);

#endif

}
static void halOLED12864ChipInit(void)

{

halOLED12864Reset();
halLcdSpiTxCmd(0xae);  // --turn off oled panel
halLcdSpiTxCmd(0x00);  // ---set low column address
halLcdSpiTxCmd(0x10);  // ---set high column address
halLcdSpiTxCmd(0x40);  // --set start line address  Set Mapping  
                                //   RAM Display Start Line (0x00~0x3F)
halLcdSpiTxCmd(0x81);  // --set contrast control register
halLcdSpiTxCmd(0xcf);  // --Set SEG Output Current Brightness
halLcdSpiTxCmd(0xa1);  // --Set SEG/Column Mapping     
halLcdSpiTxCmd(0xc8);  // --Set COM/Row Scan Direction  
halLcdSpiTxCmd(0xa6);  // --set normal display
halLcdSpiTxCmd(0xa8);  // --set multiplex ratio(1 to 64)
halLcdSpiTxCmd(0x3f);  // --1/64 duty
halLcdSpiTxCmd(0xd3);  // --set display offset Shift Mapping RAM 
                                //   Counter(0x00~0x3F)
halLcdSpiTxCmd(0x00);  // --not offset
halLcdSpiTxCmd(0xd5);  // --set display clock divide
                                //   ratio/oscillator oscillator frequency
halLcdSpiTxCmd(0x80);  // --set divide ratio, Set Clock as 100 
                                //   Frames/Sec
halLcdSpiTxCmd(0xd9);  // --set pre-charge period
halLcdSpiTxCmd(0xf1);  // --Set Pre-Charge as 15 Clocks & Discharge 
                                //   as 1 Clock
halLcdSpiTxCmd(0xda);  // --set com pins hardware configuration
halLcdSpiTxCmd(0x12);
halLcdSpiTxCmd(0xdb);  // --set vcomh
halLcdSpiTxCmd(0x40);  // --Set VCOM Deselect Level
halLcdSpiTxCmd(0x20);  // --Set Page Addressing Mode (0x00/0x01/0x02)
halLcdSpiTxCmd(0x02);  //
halLcdSpiTxCmd(0x8d);  // --set Charge Pump enable/disable
halLcdSpiTxCmd(0x14);  // --set(0x10) disable
halLcdSpiTxCmd(0xa4);  // --Disable Entire Display On (0xa4/0xa5)
halLcdSpiTxCmd(0xa6);  // --Disable Inverse Display On (0xa6/a7) 
halLcdSpiTxCmd(0xaf);  // --turn on oled panel

}
static void halOLED12864SetPosition(uint8 page, uint8 x)

{

halLcdSpiTxCmd( 0xb0 + page );

halLcdSpiTxCmd( ((x&0xf0)>>4)|0x10 );

halLcdSpiTxCmd( (x&0x0f)|0x01 );

}
static void halOLEDShowChar8x16(uint16 x, uint16 page, uint8 ch)

{

uint16 charIndex;
/* index of font table, height: 16 */
if(ch > 32) charIndex = (ch - 32) * 16;
else charIndex = 0;

/* Set first page */
halOLED12864SetPosition(page, x);
for (uint8 j = 0; j < 8; j++)  halLcdSpiTxData( FONT_TABLE_8x16[charIndex + j] );

/* Set second page */
halOLED12864SetPosition(page + 1, x);
for (uint8 j = 0; j < 8; j++) halLcdSpiTxData( FONT_TABLE_8x16[charIndex + j + 8] );

}

【1】查询模块是否正常

AT

OK
【2】获取卡号,查询卡是否插好

AT+CIMI
460041052911195
OK
【3】激活网络

AT+CGATT=1
OK
【4】获取网络激活状态

AT+CGATT?
+CGATT: 1
OK
【5】查询网络质量

AT+CSQ
+CSQ: 26,0
OK
【6】 检查网络状态

AT+CEREG=?   //

+CEREG: 0,1 //找网成功

OK

【1】激活GPS，要等一段时间

AT+QGNSSC=1

OK
【2】查询激活状态，1表示成功激活

AT+QGNSSC?
+QGNSSC: 1
OK
【3】获取一次GPS定位语句

AT+QGNSSRD="NMEA/RMC"

+QGNSSRD: $GNRMC,120715.00,A,3150.78179,N,11711.93433,E,0.000,,310818,,,A,V*19

OK