Discussion in "ARM Development" started by    sachinmm    Sep 14, 2015.
Mon Sep 14 2015, 05:20 AM
#1
hello sir,i have a sm20 finger print module and i want to write an application for interfacing sm20 module with lpc2148 but plz tell me how to check my sm20 finger print module is working or not??? i have serial port terminal software..
Tue Sep 15 2015, 12:52 AM
#2
I found this data sheet that seems to cover your model.
As commands are 24 bytes long and not in ASCII you can't do a simple test.
Write a program to send a command string and check the reply.

 sachinmm like this.
Tue Sep 15 2015, 06:26 AM
#3
thanku sir my module is working
Tue Sep 15 2015, 06:27 AM
#4
but there is one issue i used lpc2148 trainer board for interfacing fp..in that pin.0.8 showing 0 voltage and i cant get proper response from fp
Tue Sep 15 2015, 06:31 AM
#5
pin 0.8 and pin 0.9 are used for receive and transmit data for UART1....and i used UART0 for transmitting data and uart1 used for showing response from fp....
Sun Sep 20 2015, 09:12 PM
#6


but there is one issue i used lpc2148 trainer board for interfacing fp..in that pin.0.8 showing 0 voltage and i cant get proper response from fp

sachinmm


Are you still having problems ?
Mon Sep 21 2015, 04:37 AM
#7
yes sir..
Mon Sep 21 2015, 04:39 AM
#8
because FP data is reading by using UART1 and TX AND RX pin of uart1 is connected to pin0.8 & pin0.9 and TX show 0 volt.
Wed Sep 23 2015, 01:04 AM
#9
Can you give a link to the lpc2148 trainer board you are using.

Are you able to program the board to do anything ?
Do you have any demo software that transmits on UART1 ?

Tue Sep 29 2015, 09:31 PM
#10
[Topic moved to ARM Development Forum]

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Sat Feb 01 2020, 10:12 AM
Pearl Olin
Hello,
Wed Jan 22 2020, 06:16 PM
MINU CHAUDHARY
I m getting errors while simulation process during interfacing socket output and lcd... Can i get the report of ur project which is same as us.
Tue Jan 14 2020, 07:08 AM
shubham kharade
when i am trying to simulate the program in Proteus 8 professional, I am getting some errors as cannot find module file dhtxx.md can u help me
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hello..i am programming industrial timer using 8051 with 24lc64 eeprom. i have query in storing the 3 diff value in eeprom with enter button. can anyone share c code ?
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Hello. Can anyone share the code in Bascon and scheme in Proteus?
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how to interface 8051 microcontroller with NRF24L01+ module
ExperimenterUK
Sat Oct 12 2019, 10:23 PM
Log in.. then post your code in the 8051 forum
Sat Oct 12 2019, 10:18 AM
Bhadra Sajikumar
i am doing a countdown timer with 8051 for my project, unfortunately our professor had to take a leave of absence before he could teach us most of it.. can someone explain the .asm code of it for me?
Mon Sep 23 2019, 07:37 AM
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I am doing a project for my schools wireless security system with cameras,sensors and spot lights using 8051 micro controller, could you help me out with the design and its source code.
Wed Sep 18 2019, 08:48 PM
Caryn Kover
Thank you for your time,

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