Zvonimir Lavrić
Simple usage of wifi module ESP826601.
Revision 0:47830fe8d357, committed 2020-11-19
- Comitter:
- zvonimir
- Date:
- Thu Nov 19 11:42:27 2020 +0000
- Commit message:
- Upravljanje wifi modulom esp826601.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ESP826601/ES826601.cpp Thu Nov 19 11:42:27 2020 +0000
@@ -0,0 +1,96 @@
+#include "ESP826601.h"
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX, 115200);
+Serial esp(p28, p27, 115200);
+DigitalOut reset(p26);
+
+bool flag = false;
+bool flagConnection = false;
+bool flagSend = false;
+
+char connection = '0';
+
+char command[500];
+int counter = 0;
+
+Esp::Esp(){}
+
+void Esp::init(void){
+ reset = 0;
+ wait(0.2);
+ reset = 1;
+ wait(5);
+ esp.attach(&ESP_interrupt, Serial::RxIrq);
+ pc.printf("------------\n");
+}
+
+void Esp::send(char* text){
+ pc.printf("PC: ");
+ pc.printf(text);
+ pc.putc('\r');
+ esp.printf(text);
+ esp.printf("\r\n");
+}
+
+void Esp::waitResponse(){
+ while(!flag){
+ wait_ms(100);
+ }
+ flag = false;
+}
+
+void Esp::waitConnection(){
+ while(!flagConnection){
+ wait_ms(100);
+ }
+ flagConnection = false;
+
+ esp.printf("AT+CIPSEND=");
+ esp.putc(connection);
+ esp.printf(",20\r\n");
+
+ Esp::waitResponse();
+}
+
+void Esp::closeConnection(){
+ while(!flagSend){
+ wait_ms(100);
+ }
+ flagSend = false;
+
+ esp.printf("AT+CIPCLOSE=");
+ esp.putc(connection);
+ esp.printf("\r\n");
+
+ Esp::waitResponse();
+}
+
+void Esp::printToPC(char* text){
+ pc.printf(text);
+}
+
+void Esp::printToPC(char c){
+ pc.putc(c);
+}
+
+void ESP_interrupt(){
+ char c = esp.getc();
+ if(c == '\n' || c == '\r'){
+ if(counter != 0){
+ pc.printf("ESP: ");
+ for(int i=0; i<counter; i++) pc.putc(command[i]);
+ pc.putc('\r');
+ counter = 0;
+ if(command[0] == 'O' && command[1] == 'K') flag = true;
+ if(command[2] == 'C' && command[3] == 'O' && command[4] == 'N' && command[5] == 'N') {
+ connection = command[0];
+ flagConnection = true;
+ }
+ if(command[0] == 'S' && command[1] == 'E' && command[2] == 'N' && command[3] == 'D') flagSend = true;
+ }
+ }else {
+ command[counter] = c;
+ counter++;
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ESP826601/ESP826601.h Thu Nov 19 11:42:27 2020 +0000
@@ -0,0 +1,20 @@
+#ifndef ESP826601_H
+#define ESP826601_H
+
+#include "mbed.h"
+
+void ESP_interrupt();
+
+class Esp{
+ public:
+ Esp(void);
+ void init(void);
+ void waitResponse(void);
+ void waitConnection(void);
+ void closeConnection(void);
+ void send(char* text);
+ void printToPC(char* text);
+ void printToPC(char c);
+};
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Nov 19 11:42:27 2020 +0000
@@ -0,0 +1,33 @@
+#include "mbed.h"
+#include "ESP826601.h"
+
+Esp ESP;
+DigitalOut myled(LED1);
+Ticker tick;
+
+void readData(){
+ myled = !myled;
+}
+
+int main() {
+ tick.attach(&readData, 0.5);
+
+ ESP.init();
+ ESP.send("AT+CIFSR");
+ ESP.waitResponse();
+ ESP.send("AT+CIPMUX=1");
+ ESP.waitResponse();
+ ESP.send("AT+CIPSERVER=1,80");
+ ESP.waitResponse();
+
+ tick.detach();
+ myled = 0;
+
+ while(1){
+ ESP.waitConnection();
+ ESP.send("Pozdrav od Zvonimira");
+ ESP.closeConnection();
+ }
+}
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Nov 19 11:42:27 2020 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file