作者:往兮321 | 更新时间:2020-05-12 | 浏览量:954
ESP8266+重力传感HX711芯片 使用论坛的控制LED代码合成后,可以看到设备在线状态,称重也可以正常工作, 但设备对话时就没有反应 。 两个代码分开时都能运行, 合起来就不行了,小白一个,大神能说详细点不。。
源代码 如下:
/*
* 按钮按下开始指纹检测,成功发送信息,并LED闪烁,lock开启;失败发送信息报警;
* lock开启后检测开关,按下开关,lock关闭;
* 发送open指纹检测开锁;发送new添加指纹;发送stop关闭lock;发送play打开lock;
* 检测到物品后,发送信息提示;
* 压力HX711:VCC接5V、SCK接A0,DT接A1、GND接地;模块红黑白绿接E+E-A-A+;
* wifi8266:VCC接3.3V、GND接地、TXD接0、RXD接1;
* 指纹AS608:VCC接3.3V 红线、TX接2 黄线、RX接3 白线、GND接地 黑线;
* lock接11,通电不能大于1秒;LED接9;门锁按钮接10;
*/
#include <Adafruit_Fingerprint.h>
#include <aJSON.h>
#include "HX711.h"
#include <SoftwareSerial.h>
// pin #2 is IN from sensor (GREEN wire)
// pin #3 is OUT from arduino (WHITE wire)
SoftwareSerial mySerial(2, 3);
//SoftwareSerial wifiSerial(0, 1);
HX711 scale(A5, A4);
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);//mySerial = finger
uint8_t id;
String DEVICEID = "17388"; // 设备ID
String APIKEY = "63fb07905"; //APIKEY
const int lock = 11;
const int LED = 9;//提示灯
unsigned long lastCheckStatusTime = 0; //记录上次报到时间
const unsigned long postingInterval = 40000; // 每隔40秒向服务器报到一次
unsigned long checkoutTime = 0;//登出时间
int sta;
int button = 7;//门锁按钮
boolean buttonState = 1;
extern unsigned long HX711_Read(void);
extern long Get_Weight();
///变量定义
float Weight = 0;
int HX711_SCK =A4; /// 作为输出口
int HX711_DT= A5; /// 作为输入口
long HX711_Buffer = 0;
long Weight_Maopi = 0, Weight_Shiwu = 0;
#define GapValue 240 ///该值需校准 每个传感器都有所不同
void setup()
{
//初始化HX711的两个io口
pinMode(HX711_SCK, OUTPUT); ///SCK 为输出口 ---输出脉冲
pinMode(HX711_DT, INPUT); /// DT为输入口 ---读取数据
Serial.begin(115200);
Serial.print("Welcome to use!\n");
delay(3000); ///延时3秒
//获取毛皮重量
Weight_Maopi = HX711_Read();
//WIFI
pinMode(LED, OUTPUT);
//Serial.begin(115200);//串口初始化(WIFI),硬件串口 rx=0,tx=1
//Serial.begin(9600);
finger.begin(9600);//指纹模块初始化,软件串口rx=2,tx=3
//while (!Serial);
delay(5000);
//Serial.println("\n\n指纹传感器记录");
Serial.print("启动成功!");
//LOCK
pinMode(lock, OUTPUT);
pinMode(button, INPUT);
}
void loop() /// 一直循环{}内容 ----- 同while(1){xxx}
{
//每一定时间查询一次设备在线状态,同时替代心跳
if (millis() - lastCheckStatusTime > postingInterval) {
checkStatus();
}
//checkout 50ms 后 checkin
if ( checkoutTime != 0 && millis() - checkoutTime > 50 ) {
checkIn();
checkoutTime = 0;
}
//读取串口信息 ||buttonState == HIGH
buttonState = digitalRead(button);
while (Serial.available()||buttonState == HIGH) {
buttonState = digitalRead(button);
if (buttonState == HIGH){
Weight = Get_Weight(); //计算放在传感器上的重物重量
float kuaidi=float(Weight/1000);
Serial.print(kuaidi,3); //串口显示重量,3意为保留三位小数
Serial.print(" kg\n"); //显示单位
Serial.print("\n"); //显示单位
scale.power_down(); // 将ADC置于休眠模式
if (kuaidi>1){
Serial.print("有快递,请指纹解锁!");
FingerprintIdentification();
buttonState=0;
delay(3000);
return;
}
else if (kuaidi<1){
Serial.print("锁已开启,可以放入快递。");
digitalWrite(lock, HIGH);
delay(500);
digitalWrite(lock, LOW);
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
delay(500);
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
sta = 3;
buttonState=0;
return;
}
}
String inputString = Serial.readStringUntil('\n');
//检测json数据是否完整
int jsonBeginAt = inputString.indexOf("{");
int jsonEndAt = inputString.lastIndexOf("}");
if (jsonBeginAt != -1 && jsonEndAt != -1) {
//净化json数据
inputString = inputString.substring(jsonBeginAt, jsonEndAt + 1);
int len = inputString.length() + 1;
char jsonString[len];
inputString.toCharArray(jsonString, len);
aJsonObject *msg = aJson.parse(jsonString);
processMessage(msg);
aJson.deleteItem(msg);
}
//-
}
//--
scale.power_up();
}
//称重函数
long Get_Weight()
{
HX711_Buffer = HX711_Read(); ///读取此时的传感器输出值
Weight_Shiwu = HX711_Buffer; ///将传感器的输出值储存
Weight_Shiwu = Weight_Shiwu - Weight_Maopi; //获取实物的AD采样数值。
Weight_Shiwu = (long)((float)Weight_Shiwu/GapValue); //AD值转换为重量(g)
return Weight_Shiwu;
}
unsigned long HX711_Read(void) //选择芯片工作方式并进行数据读取
{
unsigned long count; ///储存输出值
unsigned char i;
////high--高电平 1 low--低电平 0
digitalWrite(HX711_DT, HIGH); //// digitalWrite作用: DT=1;
delayMicroseconds(1); ////延时 1微秒
digitalWrite(HX711_SCK, LOW); //// digitalWrite作用: SCK=0;
delayMicroseconds(1); ////延时 1微秒
count=0;
while(digitalRead(HX711_DT)); //当DT的值为1时,开始ad转换
for(i=0;i<24;i++) ///24个脉冲,对应读取24位数值
{
digitalWrite(HX711_SCK, HIGH); //// digitalWrite作用: SCK=0;
/// 利用 SCK从0--1 ,发送一次脉冲,读取数值
delayMicroseconds(1); ////延时 1微秒
count=count<<1; ///用于移位存储24位二进制数值
digitalWrite(HX711_SCK, LOW); //// digitalWrite作用: SCK=0;为下次脉冲做准备
delayMicroseconds(1);
if(digitalRead(HX711_DT)) ///若DT值为1,对应count输出值也为1
count++;
}
digitalWrite(HX711_SCK, HIGH); ///再来一次上升沿 选择工作方式 128增益
count ^= 0x800000; //按位异或 不同则为1 0^0=0; 1^0=1;
///对应二进制 1000 0000 0000 0000 0000 0000 作用为将最高位取反,其他位保留原值
delayMicroseconds(1);
digitalWrite(HX711_SCK, LOW); /// SCK=0;
delayMicroseconds(1); ////延时 1微秒
return(count); ///返回传感器读取值
}
//设备登录
//{"M":"checkin","ID":"xx1","K":"xx2"}\n
void checkIn() {
Serial.print("{\"M\":\"checkin\",\"ID\":\"");
Serial.print(DEVICEID);
Serial.print("\",\"K\":\"");
Serial.print(APIKEY);
Serial.print("\"}\r\n");
}
//处理网络接收到到指令,执行相关动作
void processMessage(aJsonObject *msg) {
aJsonObject* method = aJson.getObjectItem(msg, "M");
if (!method) {
return;
}
String M = method->valuestring;
if (M == "WELCOME TO BIGIOT") {
checkOut();
checkoutTime = millis();
return;
}
if (M == "connected") {
checkIn();
}
if (M == "say") {
aJsonObject* content = aJson.getObjectItem(msg, "C");
aJsonObject* client_id = aJson.getObjectItem(msg, "ID");
String C = content->valuestring;
String F_C_ID = client_id->valuestring;
if (C == "play") {
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
delay(500);
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
say(F_C_ID, "lock on!");
}
if (C == "stop") {
digitalWrite(lock, HIGH);
delay(500);
digitalWrite(lock, LOW);
say(F_C_ID, "lock off!");
}
if (C == "new") {
say(F_C_ID, "new finger");
getFingerprintEnroll();
}
if (C == "open") {
say(F_C_ID, "finger test ");
FingerprintIdentification();
}
if (sta == 1) {
say(F_C_ID, "未知者尝试开启!");
}
if (sta == 3) {
say(F_C_ID, "有你的快递!");
}
if (sta == 2) {
say(F_C_ID, "锁已开启!");
}
}
}//
//发送say指令,用于设备与用户、设备与设备间通讯
//{"M":"say","ID":"xx1","C":"xx2","SIGN":"xx3"}\n
void say(String ID, String c) {
Serial.print("{\"M\":\"say\",\"ID\":\"");
Serial.print(ID);
Serial.print("\",\"C\":\"");
Serial.print(c);
Serial.print("\"}\r\n");
}
//强制设备下线,用消除设备掉线延时
void checkOut() {
Serial.print("{\"M\":\"checkout\",\"ID\":\"");
Serial.print(DEVICEID);
Serial.print("\",\"K\":\"");
Serial.print(APIKEY);
Serial.print("\"}\n");
}
//查询设备在线状态
//{"M":"status"}\n
void checkStatus() {
Serial.print("{\"M\":\"status\"}\n");
lastCheckStatusTime = millis();
}
uint8_t readnumber(void) {
uint8_t num = 0;
while (num == 0) {
while (! Serial.available());
num = Serial.parseInt();
}
return num;
}
uint8_t getFingerprintEnroll() { //指纹注册
Serial.println("准备注册指纹!");
int id =1;
Serial.print("登记ID #");
Serial.println(id);
int p = -1;
Serial.print("等待有效的指纹注册为 #"); Serial.println(id);
while (p != FINGERPRINT_OK) {
p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
Serial.println("采集指纹");
break;
case FINGERPRINT_NOFINGER:
Serial.println(".");
break;
default:
Serial.println("未知的错误");
break;
}
}
// OK success!
p = finger.image2Tz(1);
switch (p) {
case FINGERPRINT_OK:
Serial.println("图像修改");
break;
default:
Serial.println("未知的错误");
return p;
}
Serial.println("请移动手指");
delay(2000);
p = 0;
while (p != FINGERPRINT_NOFINGER) {
p = finger.getImage();
}
Serial.print("ID "); Serial.println(id);
p = -1;
Serial.println("再次放置手指");
while (p != FINGERPRINT_OK) {
p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
Serial.println("图像已采集");
break;
case FINGERPRINT_NOFINGER:
Serial.print(".");
default:
Serial.println("未知的错误");
break;
}
}
//第二次对比
p = finger.image2Tz(2);
switch (p) {
case FINGERPRINT_OK:
Serial.println("正在记录");
break;
default:
Serial.println("未知的错误");
return p;
}
// 创建成功
Serial.print("创建指纹为 #"); Serial.println(id);
p = finger.createModel();
if (p == FINGERPRINT_OK) {
Serial.println("匹配!");
id++;
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
delay(500);
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
Serial.println("连接错误");
return p;
} else if (p == FINGERPRINT_ENROLLMISMATCH) {
Serial.println("指纹不匹配");
digitalWrite(LED, LOW);
return p;
} else {
Serial.println("未知的错误");
return p;
}
Serial.print("ID "); Serial.println(id);
p = finger.storeModel(id);
if (p == FINGERPRINT_OK) {
Serial.println("已储存!");
} else {
Serial.println("未知的错误");
return p;
}
}
uint8_t FingerprintIdentification()
{
int p = -1;
p=0;
delay(2000);
Serial.print("开始指纹测试:");
p = finger.getImage();
if (p == FINGERPRINT_OK) {
Serial.print("开始指纹测试:");
delay(2000);
if (p != FINGERPRINT_OK) return -1;
delay(2000);
p = finger.image2Tz();
if (p != FINGERPRINT_OK) return -1;
delay(2000);
p = 0;
p = finger.fingerFastSearch();
if (p != FINGERPRINT_OK) Serial.print("没有找到指纹");
delay(2000); //验证指纹
if(finger.confidence>80){
digitalWrite(LED, HIGH);
Serial.print("找到指纹ID为 #"); Serial.print(finger.fingerID);
Serial.print("信心值: "); Serial.println(finger.confidence);
sta=2;
digitalWrite(lock, HIGH);
delay(500);
// digitalWrite(lock, LOW);
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
delay(500);
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);}
else{
Serial.print("指纹不匹配");
sta=1;
return p;
}
}
}