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Dear friends i am doing metal detector project have searched in google and try to make the one circuit 2 pnp transistors based that is working well but that is detecting very short range I wont to increase the long range so please give me the suggestion how to increase detection range
Re: 4 chanal iot controller sketch not compilling
Friend thanks to your reply I have to done like that after then also I am getting same error
'MQTT' does not name a type
Re: 4 chanal iot controller sketch not compilling
Friend i am try to lode this files for arduino library but it says this is not library files this files i am getting from GitHub
Re: 4 chanal iot controller sketch not compilling
Friend i am not getting correct library please atleest provide the correct library files Please excuse me my poor english
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Friend i am not getting correct library please atleest provide the correct library files Please...
Re: 4 chanal iot controller sketch not compilling
Yes friend i have to added MQTT library files but i dont know that files are correct or wrong i am attaching that library file pls once check your end
4 chanal iot controller sketch not compilling
Dear friends i start the project 4 relay controlling through internet
link : https://iot-playground.com/blog/2-uncategorised/92-esp8266-internet-connected-4-relay-switch#program
but this program is not compelling
error : 'MQTT' does not name a...
Actually am preparing GSM based 3 phase motor controller when i am giving the miss call then motor will be start again call then off it's fine but i want to add program for 3 phase voltage monitoring so that's why i am prepared op amp circuit LM324 based it's out put giving perfectly i have...
Friend please my arduino code
#include <EEPROM.h>
#include <SoftwareSerial.h>
SoftwareSerial GPRS(7, 8);
unsigned long interval = 120000; // the time we need to wait for switching off motor dry run (100 seconds interval)
unsigned long previousMillis = 0; // millis() returns an unsigned long...
Dear Friends i need small modification for my program this program working fine but i wont to add 3 phase detection when any phase will be fail or avail then send to sms and at the same time if motor in HIGH position immediately change to LOW position
const int analogPin1 = PIN_A0; // pin...
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