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if i supply through panel then how load cutoff will work in case of battery under voltage. Does solar panel provide sufficient votage and current (milli amp) even during night to power microcontroller atleast.
Hi,
I am trying to design solar charge controller. Can anyone tell me whether to provide power to microcontroller and other IC, through solar panel or through battery.
I got stuck as If we provide power through solar panel, then how microcontroller will get power during night and if we provide...
sending 2 SMS back to back using SIM300 through 8051
Hi all,
I am trying to send 2 SMS back to back using SIM300 through 8051 microcontroller but i observe that the 2nd SMS is not getting delivered. However transmission of 1st SMS is successful.
Surely there is a problem in my code which i am...
Normally diode in series at the output of the PV is used for reverse current flow. Will it also protect from reverse polarity of solar panel.
I am using N-MOSFET at the -ve output of solar panel and controlling the gate of MOSFET through microcontroller after sensing voltage of panel and...
Hi,
Does solar panel too requires reverse polarity protection OR reverse polarity protection is only required in case of battery???
I tried to explore internet and gone through various post but nowhere i found Reverse polarity protection for solar panel, instead i got reverse current flow to...
Dear all,
Can anyone explain how MOSFET switching should takes place in two stage synchronous buck converter.
Normally in synchronous buck converter High side and Low side MOSFET should be switched On alternately but what should be the switching sequence in case of interleave design.
Whether...
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I got the output.
I used the same formula as X = (4915200 - baudrate*16)/(baudrate*16) where FOSC = 4195200
which comes out to be 31, so i have written directly SPBRG = 31 and it is working absolutely fine. but if i am writing SPBRG = X which is a character type variable...
Thank you for your help.. i have corrected that part and tried both typecasting and directly using a char variable for speed, but in both the cases problem still persist. As PIC16F877A does NOT have any internal oscillator like other PIC microcontroller(as per my knowledge), do i need to...
if we expand the above formula what you mentioned
i.e. Baud rate = FOSC/16(X+1) we will get
X = (FOSC - 16*Baudrate)/(16*Baudrate)
SPBRG = X
This is the same formula i have used to load in SPBRG.
Am i missing something ... please help.
Hi everyone.. i have written UART code in MPLAB using "xc8" compiler for PIC16F877A Microcontroller..code build was successful but while i am simulation code using proteus i am not getting the output in virtual terminal as expected. Frequency used for 9600 baud rate is 4.9152 MHZ so that baud...
AT //ATTENTION COMMAND
ok
AT+CGREG? //NETWORK REGISTRATION STATUS
AT+CGREG=1
STETUS SHOULD BE 1,1
Parameter
<n> 0 disable network registration unsolicited result code
1 enable network registration unsolicited result code +CGREG:<stat>
2 enable network registration and location information...
YES, u are correct . The problem was with BAUD RATE. in my program i am using 9600 baud rate but from PC data was coming with 4800 baud rate. EXCELLENT MAN. HATS OFF..THANK YOU....:-D
I have removed a DELAY function from the ISR and also removed 0x0A from the deafult value of the SWITCH CASE statement. NOW when i am pressing key 1 or key 2 or key 3, i am always getting the dafault output. i.e 0xFF always . MODIFIED PROGRAM IS PASTED BELOW. please solve
#include <REG51F.H>...
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