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i m using an Dc motor which require to operate at 12V and 10A to operate properly. and i want to interface my motor with 8051 and i want to control its speed through pwm.
so i need a driver ckt which can interface b/w 8051 and motor ???
i also use a 2803 ic for high ampere. but motor is running...
my 89s51 giving high in all the port except p0.
i m using a very simple coding
h1: mov c,p2.0
it should low if p2.0 low so p1.0 should also low. but its give high all the time...
the is simple ckt for checking the behavior of microcontroller
my controller is not giving proper response. if EA=1 so stuck. if EA=open so its response. as well as if i connect capacitors to XTAL so its not give response. using RST button. it work little.see my image.
i choose for RST is 10uf...
my problem is that i want to on and off my transistor through pot 100k. but when i turn on power at 100k resistor so it is off. and when i start decrease its resistor when it become 33k ohm so transistor get on. but when i increase its reistor even 100k again. so it doesnt get off.
i m using...
i have made 2,3 isp programmer. but 2 isp programmer doesnt work. and but 1 isp prog work.but its give me error normally . i have been tried to use and check it again and again.
if somebody have good and easy isp programmer ckt.as well as easy to use. so plz share with me. i really need...
this ckt is working.but problem is that its not showing correct level of water at seven segment display at the run time until i pressed the reset button. when i pressed the reset button so it show the correct level of water but buzzer will start sound then i dip the lower limit of sump then...
Tutorial Microcontroller MCS-51 ATMEL ISP
i m using your isp programmer.
its working. but after sometime i used it again.so its giving me error.even that the initialize target is going fine.
the device is read/write locked.
i used 12 mhz crystal.
i need very much.
when the output port of p2.0 is open. its output is 5v. but when i connect led. so it doesnt light very well either i connect resistor 220 ohm or not . and 2.0 v occor at output. why its not giving light very well. and when my led connect directly to power supply with resistor. so its light very...
i m using pwn to increase and decrease the speed of dc motor. and send the data through hyper terminal.
in virtual drive sent and recive sa same.
i dont know. what is going on problem.
i m giving u ckt diagram plz check it that connection is ok?
or coding as well as
i need a software which is easy to understand, plz help any good software and its help.
i used pcb123 here i make schematic then i convert in layout, so i dont understand my pcb easily thats y i didnt like it
then i use pcb artist thats good for pcb layout but not good for schematic and its...