thingspeak using ESP8266 wifi module
Dependencies: mbed RFIDreaderwithHC06 ESP8266
Revision 6:c7013352d4c7, committed 2019-04-19
- Comitter:
- sthiyag
- Date:
- Fri Apr 19 22:01:58 2019 +0000
- Parent:
- 5:ee26bce360d0
- Commit message:
- v2
Changed in this revision
RFIDreaderwithHC06.lib | Show annotated file Show diff for this revision Revisions of this file |
main.cpp | Show diff for this revision Revisions of this file |
diff -r ee26bce360d0 -r c7013352d4c7 RFIDreaderwithHC06.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RFIDreaderwithHC06.lib Fri Apr 19 22:01:58 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/sthiyag/code/RFIDreaderwithHC06/#9a39ebd76683
diff -r ee26bce360d0 -r c7013352d4c7 main.cpp --- a/main.cpp Fri Apr 19 20:22:31 2019 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,137 +0,0 @@ -#include "mbed.h" -#include "ESP8266.h" // Include header file from Author: Antonio Quevedo -#include "math.h" -#include <string> - -#define APIKEY XE2W5EIXWN6LA234 //Put "Write key" of your channel in thingspeak.com -#define IP "184.106.153.149" // IP Address of "api.thingspeak.com\" -#define WIFI_SSID "RajasiPhone" -#define WIFI_PASS "youcantguessmypassword" - -Serial pc(USBTX,USBRX); - -ESP8266 esp(PTC17, PTC16, 115200); // baud rate for wifi - -char snd[255],rcv[1000],snd_Data[255]; //snd= string used to send command to ESP 8266 wii and rcv = string used to receive response from ESP8266 wifi module - -void esp_initialize(void); // Function used to initialize ESP8266 wifi module -void esp_send(void); // Function used to connect with thingspeak.com and update channel using ESP8266 wifi module - -//test variable -float i=0; -float j=10; - -int main() -{ - - pc.baud(115200); // Baud rate used for communicating with Tera-term on PC - - pc.printf("START\r\n"); // Starting point - - esp_initialize(); - - - - while (1) - { wait(15); - pc.printf("test value is %f%f\n",i,j); - esp_send(); - i++; - j--; - - } -} - - -void esp_initialize(void) -{ - pc.printf("Initializing ESP\r\n"); - - pc.printf("Reset ESP\r\n"); - esp.Reset(); //RESET ESP - esp.RcvReply(rcv, 400); //receive a response from ESP - //pc.printf(rcv); //Print the response onscreen - wait(2); - - strcpy(snd,"AT"); - esp.SendCMD(snd); - pc.printf(snd); - //wait(2); - esp.RcvReply(rcv, 400); - pc.printf(rcv); - wait(0.1); - - strcpy(snd,"AT+CWMODE=1"); - esp.SendCMD(snd); - pc.printf(snd); - wait(2); - - strcpy(snd,"AT+CWJAP=\""); - strcat(snd,WIFI_SSID); - strcat(snd,"\",\""); - strcat(snd,WIFI_PASS); - strcat(snd,"\""); - - esp.SendCMD(snd); - pc.printf(snd); - wait(5); - esp.RcvReply(rcv, 400); - pc.printf("\n %s \n", rcv); - - strcpy(snd,"AT+CIPMUX=0"); - esp.SendCMD(snd); - pc.printf(snd); - //wait(2); - esp.RcvReply(rcv, 400); - pc.printf("\n %s \n", rcv); - -} - - -void esp_send(void) -{ - - //ESP updates the Status of Thingspeak channel// - - strcpy(snd,"AT+CIPSTART="); - strcat(snd,"\"TCP\",\""); - strcat(snd,IP); - strcat(snd,"\",80"); - - esp.SendCMD(snd); - pc.printf("S\r\n%s",snd); - //wait(2); - esp.RcvReply(rcv, 1000); - pc.printf("R\r\n%s",rcv); - wait(1); - - sprintf(snd,"GET https://api.thingspeak.com/update?key=XE2W5EIXWN6LA234&field1=%f&field2=%f\r\n",i,j); - - int i=0; - for(i=0;snd[i]!='\0';i++); - i++; - char cmd[255]; - - sprintf(cmd,"AT+CIPSEND=%d",i); //Send Number of open connection and Characters to send - esp.SendCMD(cmd); - pc.printf("S\r\n%s",cmd); - while(i<=20 || rcv == ">") - { - esp.RcvReply(rcv, 1000); - wait(100); - i++; - } - pc.printf("R\r\n%s",rcv); - - esp.SendCMD(snd); //Post value to thingspeak channel - pc.printf("S\r\n%s",snd); - - while(i<=20 || rcv == "OK") - { - esp.RcvReply(rcv, 1000); - wait(100); - i++; - } - pc.printf("R\r\n%s",rcv); - -}