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balajiParticipant
hi friend
which type of ingerprint module you used
balajiParticipanthi venkadesh
u just connect a 5volt its enough for seven segmnet diaply u no need to put a seperate supply for segment u give microcontroller supply its enough for small size segment only u choose big size segment like a 8 inch u put sepearte supply
balajiParticipanthi kishore
u want interface fingern print first you connect module to pc and check hyper terminal coonnection ,analysis how its work after u interface with 8051
balajiParticipanthi vijayakumar
definitely i tell u
balajiParticipanthello friends
Good morning to all
thanks for your response
balajiParticipantHELLO HIREN
if 12 volt bulb first but relay for this
and create software for this ,create time delay function for exact 50 ms and use for loop and repat running the delay to 10 times it should give 1sec and u further repat the delay for 60 times u will get a 1 min
balajiParticipanthi friends
thanks for your response
jeyakumar told convert the data before sending it means i dont know clearly wts conversion here
i just put a data in SBUF so its FRAMING and sending the data ,if u means use max232 there is no need in proteus simulation
and one friend i didnt see the name
he told the button connecting problem i check and tell me later friend
balajiParticipanthello
we should set the baudrate in virtual terminal only , how set baudrate in controller side
balajiParticipanthi friend
thanks for your response
balajiParticipant#include<reg51.h>sbit sw=P1^0;//unsigned char *call_cmd =”ATD9843927672;”;unsigned char b[]={‘A’,’T’,’D’,’8′,’8′,’4′,’3′,’9′,’2′,’7′,’6′,’7′,’2′,};unsigned char i;void delay(unsigned char z){unsigned int i,j;for(i=0;i<z;i++)for(j=0;j<1275;j++);}void trans(unsigned val){SBUF=val;while(TI==0);TI=0;}void main(){P1=0xff;SCON=0X52;TMOD=0X20;TH1=0XFD;TR1=1;TI=1;sw=0;while(1){if(sw==0){for(i=0;i<14;i++){trans(b);delay(50);}}}}balajiParticipanthai jenifer
In 8051 I2C u must put pull up register value between 2k-10k ,please 2k i think its enough for practical use
balajiParticipanthi friend
I put same baud rate only but output didn’t came if use for another controller for check the tx data is correct ,i got the correct data transmission result i just doubt compiler should wrong if u have proteus simulation please check it down
balajiParticipantHI ASHWANI
i see your code of motor driver ,your code will be wrong that why its didn,t get uotput ,if keil it show no warning and no error according to her library only ,
balajiParticipanthi, mr ganesh
in 8051 typr controller only 3 ports give 5volt high utput ,and also it will give very low current so no need strigtly connect the load so if connect transistor and u used load in micro controller 8051 gives approxi 20 mA it will give,
balajiParticipanthello friend
i read your current problem
if a charger have 500 ma amp u just know its coreect or take a load test u put connet the variable resistor and change load linearly and take the voltage reading and current readinf ok u increase load untill volatge will down thats point ur is current rating of the charger or power source in these case ur charger will be ok u just connet a500ma load and check the volage he didnt down tha reted volatge
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