Hello everybody. I been struggling 3 days now to make my project work ...
first of all i want to read a value from a PHP page and if page reply a mobile phone , the arduino call that mobile phone. or sms it .
what i use is
Arduino UNO SIM900 GSM SHIELD ESP8266
first a broke it in two projects the
first with ESP8266 that Get Request from that PHP page and store the phone into a variable.(is working fine )
Second Project was only the GSM shield Sim900 which i used call.h and sms.h wich working fine too...
When i combine the two projects especially when i add into the ESP8266 project the sim900.h Library the ESP is not working good any more. It is connecting to the Rooter , gets IP , but when i call the GET request from site , i am not getting anything back. I also checked the RX TX ports that GSM using , and they are correct.
The ESP8266 using the 4,5 The GSM using the 2,3
I also checked another libraries for GSM , also i used Just AT commands. i guess the problem is when i add a second SoftwareSerial "device" except the ESP8266