blinker物联网教程——23、wifi智能小车
本帖最后由 海神 于 2021-10-11 09:42 编辑硬件准备WiFiduino小车车体电机驱动模块连接线 若干小车底盘L298N电机驱动模块 wifiduino主板
软件准备 Blinker App
代码#define BLINKER_PRINT Serial
#define BLINKER_WIFI
#include <Blinker.h>
char auth[] = "873sxxxxx10";
char ssid[] = "mxxxxxn";
char pswd[] = "cdxxxxx51";
#define IN4 D7
#define IN3 D6
#define IN1 D4
#define IN2 D5
#define tap_time 300
#define press_time 3000
#define press_time_zy 1000
unsigned long t = 0;
unsigned long timeout = 2000;
#define BUTTON_0 "btn-t"
#define BUTTON_1 "btn-s"
#define BUTTON_2 "btn-x"
#define BUTTON_3 "btn-z"
#define BUTTON_4 "btn-y"
#define Txt_1 "tex"
BlinkerText Text1(Txt_1);
BlinkerButton Button0(BUTTON_0);
BlinkerButton Button1(BUTTON_1);
BlinkerButton Button2(BUTTON_2);
BlinkerButton Button3(BUTTON_3);
BlinkerButton Button4(BUTTON_4);
void button0_callback(const String &state)
{
t = millis();
timeout = 2000;
key_parse(0);
}
void button1_callback(const String &state)
{
t = millis();
if (state == BLINKER_CMD_BUTTON_TAP)
{
timeout = tap_time;
key_parse(1);
}
else if (state == BLINKER_CMD_BUTTON_PRESSED)
{
timeout = press_time;
key_parse(5);
}
else if (state == BLINKER_CMD_BUTTON_RELEASED)
key_parse(0);
}
void button2_callback(const String &state)
{
t = millis();
if (state == BLINKER_CMD_BUTTON_TAP)
{
timeout = tap_time;
key_parse(2);
}
else if (state == BLINKER_CMD_BUTTON_PRESSED)
{
timeout = press_time;
key_parse(6);
}
else if (state == BLINKER_CMD_BUTTON_RELEASED)
key_parse(0);
}
void button3_callback(const String &state)
{
t = millis();
if (state == BLINKER_CMD_BUTTON_TAP)
{
timeout = tap_time;
key_parse(3);
}
else if (state == BLINKER_CMD_BUTTON_PRESSED)
{
timeout = press_time_zy;
key_parse(7);
}
else if (state == BLINKER_CMD_BUTTON_RELEASED)
key_parse(0);
}
void button4_callback(const String &state)
{
t = millis();
if (state == BLINKER_CMD_BUTTON_TAP)
{
timeout = tap_time;
key_parse(4);
}
else if (state == BLINKER_CMD_BUTTON_PRESSED)
{
timeout = press_time_zy;
key_parse(8);
}
else if (state == BLINKER_CMD_BUTTON_RELEASED)
key_parse(0);
}
void key_parse(uint8_t car_mode)
{
uint8_t L_PWM = 0;
uint8_t R_PWM = 0;
bool L_DIR = 0;
bool R_DIR = 0;
switch (car_mode)
{
case 1: //上tap
L_PWM = 127;
R_PWM = 127;
L_DIR = 1;
R_DIR = 1;
break;
case 2: //下
L_PWM = 127;
R_PWM = 127;
L_DIR = 0;
R_DIR = 0;
break;
case 3: //左
L_PWM = 127;
R_PWM = 127;
L_DIR = 0;
R_DIR = 1;
break;
case 4: //右
L_PWM = 127;
R_PWM = 127;
L_DIR = 1;
R_DIR = 0;
break;
case 5: //上press
L_PWM = 127;
R_PWM = 127;
L_DIR = 1;
R_DIR = 1;
break;
case 6: //下
L_PWM = 127;
R_PWM = 127;
L_DIR = 0;
R_DIR = 0;
break;
case 7: //左
L_PWM = 127;
R_PWM = 127;
L_DIR = 0;
R_DIR = 1;
break;
case 8: //右
L_PWM = 127;
R_PWM = 127;
L_DIR = 1;
R_DIR = 0;
break;
// case 9://左上press
// break;
// case 10://左下
// break;
// case 11://右上
// break;
// case 12://右下
// break;
}
analogWrite(IN3, L_PWM);
analogWrite(IN2, R_PWM);
digitalWrite(IN4, L_DIR);
digitalWrite(IN1, R_DIR);
Text1.print("run time", t);
}
void blinker_car_init()
{
pinMode(IN4, OUTPUT);
pinMode(IN3, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(IN1, OUTPUT);
analogWrite(IN3, 255);
analogWrite(IN2, 255);
digitalWrite(IN4, 1);
digitalWrite(IN1, 1);
//pinMode(C_BAR_PIN, INPUT_PULLUP);
}
void blinker_car_control(uint8_t cl_pwm, bool cl_dir, uint8_t cr_pwm, bool cr_dir)
{
digitalWrite(IN4, cl_dir);
digitalWrite(IN1, cr_dir);
analogWrite(IN3, cl_pwm);
analogWrite(IN2, cr_pwm);
}
/*
void blinker_car_detect()
{
if (!digitalRead(C_BAR_PIN)) {
if (!isWarn) {
Blinker.vibrate();
isWarn = true;
car_os_time = millis();
}
else if (millis() - car_os_time >= 5000) {
isWarn = false;
}
}
else {
isWarn = false;
}
}
*/
void setup()
{
analogWriteRange(255);
blinker_car_init();
Serial.begin(115200);
BLINKER_DEBUG.stream(Serial);
Blinker.begin(auth, ssid, pswd);
Button0.attach(button0_callback);
Button1.attach(button1_callback);
Button2.attach(button2_callback);
Button3.attach(button3_callback);
Button4.attach(button4_callback);
}
void loop()
{
Blinker.run();
if ((millis() - t) > timeout)
{
t = millis();
timeout = 2000;
blinker_car_init();
//Serial.println("timeout");
}
// blinker_car_detect();
/*#if defined(BLINKER_CAR_DEBUG)
BLINKER_LOG4("L_PWM: ", L_PWM, "| L_DIR: ", L_DIR);
BLINKER_LOG4("R_PWM: ", R_PWM, "| R_DIR: ", R_DIR);
Blinker.delay(2000);
#endif*/
}
## 编辑blinker手机app界面1. 点击进入设备界面，点击右上角编辑键，切换到界面编辑模式
2. 添加一个开关组件，点击按键组件，举例：添加一个 “上键”的按键
选择按键样式，可以选择按键的图标大小。点击“显示图标”可以修改“上键”的图标为一个向上的箭头随后修改 数据键名、显示文本如图所示：同时添加布置“下键”“左键”“右键”“中键”分别修改其键值为“btn-x” “btn-z”“btn-z”“btn-t”点击右上角解锁，即可完成编辑。
下载完成后打开串口窗口，会出现如下提示，表明wifiduino小车可以通过app控制了。
硬件连接接线逻辑图1、Wifiduino与电机驱动板L298模块的连线
wifiduino引脚 L298电机驱动模块引脚
7 IN4
6 IN3
4 IN1
5 IN2
VIN 12V
GND GND
VCC 5V
2、左边电机接L298电机驱动模块的 OUT1 OUT2 右边电机接OUT3OUT43、电池7.4V（2节锂电池）输入给wifiduino DC口供电
确认连线无误后，给小车上电，等待blinker中设备连接在线随后操作手机app的按键，观察小车运动情况。
例程4WD_wifi_key_control.ino
这个例子没找到呀 lanrun 发表于 2018-12-21 09:48
例程4WD_wifi_key_control.ino
这个例子没找到呀
已经添加进去，等空了把视频这些也添加进去 :handshake强，刚弄好WIFI控制的，学习了 MQTT怎么链接不上 呀 ？路由器 能看到设备已经连接了。但是串口调试信息显示没连上 ，密钥确认没有问题 板子用的是wemos 串口提示 信息
已经 搞定 。库没有更新的原因
:lol lanrun 发表于 2018-12-23 20:58
板子用的是wemos
板子用的wifiduino上面有图 出现ERROR: MQTT NOT ALIVE OR MSG LIMIT这个错误