Luis Silvio Cordova Rivadeneira / Mbed 2 deprecated UPSM_W3_ESP8266

Comandos AT para modulo ESP8266

Dependencies:   mbed

main.cpp@0:b9712fa89244, 2020-02-14 (annotated)

Committer:
lscordovar
Date:
Fri Feb 14 00:31:34 2020 +0000
Revision:
0:b9712fa89244
Ejemplo de configuracion del modulo ESP8266

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lscordovar 0:b9712fa89244 1 /**********************************************************************
lscordovar 0:b9712fa89244 2 ESP-01 BOARD RELAY CONTROL
lscordovar 0:b9712fa89244 3 ==========================
lscordovar 0:b9712fa89244 4 AT+RST Reset ESP-01
lscordovar 0:b9712fa89244 5 AT+CWMODE Set ESP-01 mode (here it is set to Station mode)
lscordovar 0:b9712fa89244 6 AT+CWJAP Set Wi-Fi ssid name and password
lscordovar 0:b9712fa89244 7 AT+CPIMUX Set connection mode (here it is set to multiple connection)
lscordovar 0:b9712fa89244 8 AT+CIFSR Returns the IP address (not used here)
lscordovar 0:b9712fa89244 9 AT+CIPSTART Set TCP or UDP connection mode, destination IP address, and port number (here, UDP is used
lscordovar 0:b9712fa89244 10 with port number set to 5000. Destination IP address is set to “0.0.0.0” so that any device can
lscordovar 0:b9712fa89244 11 connect and send data over Port 5000).
lscordovar 0:b9712fa89244 12
lscordovar 0:b9712fa89244 13
lscordovar 0:b9712fa89244 14 Testing the Program
lscordovar 0:b9712fa89244 15 The program can easily be tested with a mobile phone. You should install this app in the Play Store
lscordovar 0:b9712fa89244 16 UDPSender by hastarin
lscordovar 0:b9712fa89244 17
lscordovar 0:b9712fa89244 18 The steps to test the program are as follows:
lscordovar 0:b9712fa89244 19 • Construct the circuit.
lscordovar 0:b9712fa89244 20 • Compile and download the program to your development board.
lscordovar 0:b9712fa89244 21 • Start the UDP Server apps on your mobile phone and set the Port number to 5000 and the
lscordovar 0:b9712fa89244 22 destination IP address (ESP-01 IP address, which was 192.168.1.160 in this project).
lscordovar 0:b9712fa89244 23
lscordovar 0:b9712fa89244 24 Enter command ON1 followed by the Enter key (required for the scanf function) on the mobile
lscordovar 0:b9712fa89244 25 phone. Click Send to send the command to the development board. Relay 1 should now
lscordovar 0:b9712fa89244 26 become active and the red LED corresponding to this relay will turn ON
lscordovar 0:b9712fa89244 27
lscordovar 0:b9712fa89244 28 **********************************************************************/
lscordovar 0:b9712fa89244 29 #include "mbed.h"
lscordovar 0:b9712fa89244 30 //
lscordovar 0:b9712fa89244 31 // Define the expansion board to development board UART connections
lscordovar 0:b9712fa89244 32 //
lscordovar 0:b9712fa89244 33 #define TX PB_6//PA_9 // UART TX
lscordovar 0:b9712fa89244 34 #define RX PB_7//PA_10 // UART RX
lscordovar 0:b9712fa89244 35 //Serial esp(TX, RX); // UART TX,RX
lscordovar 0:b9712fa89244 36 Serial esp(PA_2,PA_3);
lscordovar 0:b9712fa89244 37 //Serial esp(PB_6,PB_7); // tx, rx
lscordovar 0:b9712fa89244 38 //
lscordovar 0:b9712fa89244 39 // Configure all relays as outputs and de-activate all relays
lscordovar 0:b9712fa89244 40 //
lscordovar 0:b9712fa89244 41 DigitalOut Relay1(PC_0, 1);
lscordovar 0:b9712fa89244 42 DigitalOut Relay2(PC_1, 1);
lscordovar 0:b9712fa89244 43 DigitalOut Relay3(PC_2, 1);
lscordovar 0:b9712fa89244 44 DigitalOut Relay4(PC_3, 1);
lscordovar 0:b9712fa89244 45 //
lscordovar 0:b9712fa89244 46 // This function connects to the Wi-Fi
lscordovar 0:b9712fa89244 47 //
lscordovar 0:b9712fa89244 48 void ConnectToWiFi()
lscordovar 0:b9712fa89244 49 {
lscordovar 0:b9712fa89244 50 esp.printf("AT+RST\r\n");
lscordovar 0:b9712fa89244 51 wait(2);
lscordovar 0:b9712fa89244 52
lscordovar 0:b9712fa89244 53 esp.printf("AT+CWMODE=1\r\n");
lscordovar 0:b9712fa89244 54 wait(3);
lscordovar 0:b9712fa89244 55
lscordovar 0:b9712fa89244 56 esp.printf("AT+CWJAP=\"BTHomeSpot-XNH\",\"49346abaeb\"\r\n");
lscordovar 0:b9712fa89244 57 wait(10);
lscordovar 0:b9712fa89244 58
lscordovar 0:b9712fa89244 59 esp.printf("AT+CPIMUX=1\r\n");
lscordovar 0:b9712fa89244 60 wait(3);
lscordovar 0:b9712fa89244 61
lscordovar 0:b9712fa89244 62 esp.printf("AT+CIFSR\r\n");
lscordovar 0:b9712fa89244 63 wait(3);
lscordovar 0:b9712fa89244 64
lscordovar 0:b9712fa89244 65 esp.printf("AT+CIPSTART=\"UDP\",\"192.168.1.178\",0,5000,2\r\n");
lscordovar 0:b9712fa89244 66 wait(3);
lscordovar 0:b9712fa89244 67 }
lscordovar 0:b9712fa89244 68 int main()
lscordovar 0:b9712fa89244 69 {
lscordovar 0:b9712fa89244 70 char Buffer[80]; // Buffer to store data
lscordovar 0:b9712fa89244 71 esp.baud(115200); // Set baud rate to 115200
lscordovar 0:b9712fa89244 72 ConnectToWiFi(); // Connect to Wi-Fi
lscordovar 0:b9712fa89244 73 // Receive data packets over UDP and activate/de-activate the
lscordovar 0:b9712fa89244 74 // required relay. Function strstr(a,"b") returns a value greater than
lscordovar 0:b9712fa89244 75 // 0 if string a contains sub-string "b". The command sent by the
lscordovar 0:b9712fa89244 76 // mobile devuce must be terminated with an Enter key (required for
lscordovar 0:b9712fa89244 77 // the scanf function). Buffer is cleared at the beginning of the loop
lscordovar 0:b9712fa89244 78 //
lscordovar 0:b9712fa89244 79 while(1) {
lscordovar 0:b9712fa89244 80 for(int k = 0; k < 5; k++)Buffer[k] = 0;
lscordovar 0:b9712fa89244 81
lscordovar 0:b9712fa89244 82 esp.scanf("%s",&Buffer);
lscordovar 0:b9712fa89244 83 if(strstr(Buffer, "ON1") > 0) Relay1 = 0;
lscordovar 0:b9712fa89244 84 else if(strstr(Buffer,"ON2") > 0) Relay2 = 0;
lscordovar 0:b9712fa89244 85 else if(strstr(Buffer, "ON3")> 0) Relay3 = 0;
lscordovar 0:b9712fa89244 86 else if(strstr(Buffer, "ON4") > 0) Relay4 = 0;
lscordovar 0:b9712fa89244 87 else if(strstr(Buffer, "OFF1") > 0)Relay1 = 1;
lscordovar 0:b9712fa89244 88 else if(strstr(Buffer, "OFF2") > 0)Relay2 = 1;
lscordovar 0:b9712fa89244 89 else if(strstr(Buffer, "OFF3") > 0)Relay3 = 1;
lscordovar 0:b9712fa89244 90 else if(strstr(Buffer, "OFF4") > 0)Relay4 = 1;
lscordovar 0:b9712fa89244 91 }
lscordovar 0:b9712fa89244 92 }