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112 Threads found on 89c51 Interface
I am doing a final year project and my project is "voice based home automation system" . Im using ic hm2007 for voice recognition and want to interface it with muc 89c51. i just want to control 3-4 lights.How this can be done? please any1 can help me?? reply awaited!
You'll find a clear timing digram of "External Data Memory Write Cycle" in 89c51 hardware description. Data is put on P0 during nWR low, for about 6 clock cycles. But how do yout want to latch the data in the second 8051? It has no bus device interface or input capture feature. The idea simply doesn't work. You can of course set the data stat
I m doing one project in which i want to interface GSM Module and RF-ID Reader to 89c51.. but problem is there is only one UART for 89c51.. I do not have an AT89c51 available.... Then why stated
Hi, I'm facing problem interfacing ADC and 89c51. I'm giving an analog voltage to ADC 0804 from 0-5 volts and the output is connected to port 1 of 89c51. the port 2 of microcontroller is connected to 8 bit LCD. I want to callibrate, when i change the voltage from 0-5 the LCD displays from 0-100. Vref/2 is open, step size is 19.53mV. I've trid a lot
This link having Lcd interfacing with 8051. If you more circuits search in google.
hello, Sorry, i am french, so i allready made some effort to read datasheet , always in English, and share my experimentation.( source C included!) so program written in C langage can more easily to adapt to other microcontroller than pure asm. I don't want to translate all, too much job.. try to use automatic translator . Transparent RS232
i used a RL=47Kohm and a pcf8591t adc , i interfaced the analog Vout of the mQ-7 sensor with one of pcf8591 analog input pins then how should i interface the pcf with the 89c51 microcontroller ? if there any thing wrong with the things that i have interfaced plz tell me .. this is for my project and pls i want (...)
hi guys pls help me for programming for temp and humidity sensorsy-hs-220 interfacing with 89c51. pls i need it urgently See this example (register on site to get full access to material, registration is free) : How to interface Humidity Sensor with 8051 Microcontroller (AT89c51) www.en
ok, here is some code, i had written years ago for at89c51. #include unsigned char xdata serial_buf=0; void serial_interrupt( )interrupt 4 using 3 { if( TI ) { TI = 0; //SBUF = 'A'; } if( RI ) { RI = 0; serial_buf = SBUF; SBUF = serial_buf; } } void timer1_init(void) { SCON = 0X50; TMOD = 0X20; TH1 = 0XFD;
hi everyone i want to do one project like i want to interface dc motor by using the driver ic l293d with microcontroller 89c51 RD2 IC by using the concept of pwm can anyone help in that....
I am new in microcontroller world, want to interface two PC's using MAX232 and 89c51 microcontroller for Simplex Serial port communication and Bi-directional communication. However, Simplex communication is working through microcontroller on hyper terminal, what should be the code to interface Bi-Directionally. Thanks in advance.
How to interface LCD with 89c51 LCD TO 89c51
Hi, I want to interface my AC voltage signal (which is coming from transformer) to ADC0808 with 89c51 microcontroller. so prblem is that if i will connect my transformer o/p +ve wire to the analog channel 1 then where should i connect my -ve terminal, i can't connect it to the ground because ground of IC is DC whereas my signal is AC. So pleas
89S51 (I really dont know why people use 89c51) with keypad, RFID and LCD You have source in C, description, video presentation,... just register its free.
hi I have a problem interfacing RF module(433Mhz ask) to 8051(atmel 89c51). I am using two micro controllers First: I have written a simple program to transmit 'A' serially if P1^0 is high in transmitter micro controller(uc1). and at receiver micro controller(uc2) to take serial data and put in on P1 of (uc2
Read the thread on the link, try do your own coding with the sample, no one will spoon feed you. how to interface atmel 24C02 with 89c51
When your 89c51 power up all your ports becomes input (Logic 1). To use them for lcd interfacing you have to make them as output(Logic 0). Terminal Mode is present in the left pane of ISIS. you have to use proper ground and vcc in your circuit in proteus.for this you have to use POWER and GROUND present in Terminal Mode. your code has errors. Lcd r
hey everyone, i am doing a final year project on an rf signalling system for busy zones. it requires that i use a an rf transmitter and receiver and two microcontroller for both modules. i am using 89c2051 for thr transmitter and 89c51 for the receiver. i want to be able to save the zone data on the microcontroller and send it through the tr
I wants to use a 74hc595 to interface 7 segment display to 89c51 ... What input should be given to the sh_cp st_cp and DS . do i need to toggle the ips of sh_cp and st_cp for the 74hc595 as they are mentioned to be clock i/ps . I am trying to run a basic program tyo understand the working of 74hc595
hello i m an engg. student & i want to build a line follower robot... but i don't know any thing....... so please guide me....... warning against using sms type of typing words... this is not a place for lazy people.... All your post will be deleted if it is repeated again