② 使用“ESP8266调试工具”将与主控板连接的WiFi模块设置为Statino模式，按照下面方法连接ESP8266模块和BigFish主控板，OLED显示屏使用四芯输入排线与BigFish进行连接。

③ 将实验例程（ESP8266RSSIPosition.ino）下载到主控板中。

				

					/*------------------------------------------------------------------------------------
				
版权说明：Copyright 2023 Robottime(Beijing) Technology Co., Ltd. All Rights Reserved.
				

					https://opensource.org/licenses/MIT
				
Distributed under MIT license.See file LICENSE for detail or copy at


           by 机器谱 2023-09-12 https://www.robotway.com/
				

					#include
				
------------------------------*/

/*将与主控板相连接的wifi模块使用“esp8266调试工具软件”设置为Station模式

  将其余三个模块设置为AP模式，并记录其NAME,存储在程序中*/

//#define DEBUG

#define ESP_AP_NUMBER 3
				

					 
				

				

					#include
				

				

					#include
				

				

					#include
				

				

					SoftwareSerial myESP(2,3);
				

				

					RssiPositionComputer myPositionComputer;
				
Point2D master_point;

LCD_SSD1306 lcd;
				

					char esp_ap_name[ESP_AP_NUMBER][10] = {"ESP826601","ESP826602","ESP826603"};
				
int   rssi[ESP_AP_NUMBER];

float distance[ESP_AP_NUMBER];

void setup()

{

delay(1000);

Serial.begin(115200);
				

					while(!myESP.available())
				
myESP.begin(9600);

#ifdef DEBUG

Serial.println("begin");

#endif

while(myESP.available()&&myESP.read());


{

myESP.println("AT");
				

					lcd.clear();
				
delay(1000);

}

while(myESP.available()&&myESP.read());

#ifdef DEBUG

Serial.println("Resonse ok");

#endif

lcd.begin();
				

					for(int i=0;i=0)
				
lcd.setCursor(30,4);

    lcd.print("Hello, world!");

}

void loop()

{

int n = searchESPAP(esp_ap_name,rssi);
				

					 
				

				

					name_string[n] = in_char;
				
if(n == 8)

{

n = -3;
				

					ap_n = nameToNumber(name_string,name);
				
if(ap_n != -1)

{

state = 2;

#ifdef DEBUG
				

					Serial.print("ap_n:");Serial.println(ap_n);
				
Serial.print('\n');


#endif

}

else

{

state = 0;

}

}

}
				

					if(n == 2)
				
else if(state==2)

{

n++;

if(n>=0)

rssi_string[n] = in_char;


{
				

					 
				
rs[ap_n] = atof(rssi_string);

state = 0;

search_result_number++;

#ifdef DEBUG
				

					}
				
Serial.print('\n');

Serial.print("rssi["+String(ap_n)+"]:");Serial.println(rs[ap_n]);

#endif

}
				

					dis = pow(10.0,((abs(rssi)-47)/10.0/2.212));
				
}

return(search_result_number);

}

float rssiToDistance(int rssi)

{

float dis = 0;


return dis;
				

					}
				

资料内容：

①程序源代码

②ESP8266调试工具

③ESP8266相关学习资料

资料下载地址：如何用WiFi实现无线定位