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To send the data to web server u need to know about PHP and Mysql with GET and POST request handling. along with this u must know GPRS AT commands for specific GSM Module.
some of the details is available on https://electronixforu.com/iot.html
however you can also send data to readymade iot web...
Anyone knows which library is used for this LCD on arduino mega 2560. i have tried almost all (HCTFT & UTFT) but none of these is working. In the backside of LCD no controller is mentioned.
problem is solved by applying AT+enpwrsave=0(never go into deep sleep),
By default it is already 0, but still it was going into sleep, so it is necessary to again apply it 0 each time when module is power ON.
the module and pin diagram is attached, i m following wiring diagram as shown in fig, when it starts it write "modem startup"
then writes +pbready after than i can write AT commands
like AT
AtD0000000;
AT+CMGF=1
AT+CSCS="GSM"
EACH command respond OK if i continued writing commands then every...
i m using NEOWAY GSM module M590, it is full functional GSM/GPRS serial module it reponds all the AT commands but one problem is there it does not reponse if some interval b/w AT commands is there for 4 or more seconds, its like it goes in sleep mode, it wakes only if we press any one of key...
ok i will re-check then i will inform u, however main changeover relay is already removed from the system now this box only have self starting mechanism,,
i m not using any EMI filter at AC level, using step down transformer and diode bridge +capacitor to measure Ac voltage and same transformer is used for frequency measurement before diode bridge, frequency and voltage both are working ok on mains AC supply and even on generator supply if the...
i made a system for generator which starts with RF remote and stops the generator automatically, the system is made with atmega8 and an LCD is also connected which shows Voltage and Frequency of generator. the problem i m facing is that when the circuit is near the generator the voltage varies...
U r using atmega8L and i think 8L can not be "16pu" its max frequency is upto 8mhz, so it will b atmega8l-8pu or atmega8a-16pu, anyways what constant values u r getting
I have designed Digital voltmeter with atmega8 but with only 3 resistors connected to common wires of 3 seven Segments, while all other 8 pins (a-h) are directly interfaced with atmega8. but this shows very low brightness. can we use transistors with all common wires are some other changes are...
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