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Hello,
Is there any form of chip or board available which can scan bar code..
I cannot use actual barcode scanner because of space constraints.
I read somewhere that NRF24L01 UART board does the barcode scanning, but actually it is a zigbee board.
Thanks
Hello,
Microcontroller p89v51rd2 supports spi protocol.
I have worked on spi communication i.e master to slave and slave to master data transfer.
Please can anyone suggest me on how to start with the interface of these cc2500 modules to my controller.
Can someone give me the detailed procedure...
Hello Brian,
Hello,
I have tested these ask transmission using encoders and decoders.
I had used ht12e and h12d.
using that , the project was working very fine.
But I want to make my project work without encoder and decoders.
I also tried using that led method.
the led blinks when i send...
Hello,I have attached a rough block diagram.
I hope that you get the idea what i want to tell.
my pc sends the signal through uart, and i have connected ask tx to it.
and ask receiver is connected to my controller.
Hello,
I am making a pc controlled application where I have used max 232.
So through uart , i send characters.
and i have connected ask transmitter to max232 tx pin.
and receiver on the rxd pin of microcontroller.
but these is not working.
I have tested the modules in other application, they are...
Hello, P89v51rd2 is an extended version of 8051 which supports spi communication.
I have two controllers.
I have done ss,mosi,miso connections and clock connections.
When i send some data from master to slave it is working correct as it gets displayed on the lcd.
The problem I am facing is when...
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