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Discussion Title Created date
RS 485 RECIEVE CHECK
I want to poll for the recive complete in my code .. i eneable the rx 485 to recieve by setting enable pin to zero, and then i have to poll for rxc ,,, the code isnt working ......
Tuesday, 5 October 2010 - 06:26
push buttons + led interface to avr pins
i am interfacing push buttons and leds to avr in such a way that when the button is pressed the led also glows.. now the point is that i want it to glow by itself and not by mcu...
Monday, 4 October 2010 - 08:08
avr and Rs485
hi friends.. i have a circuit[attached] on Pcb, for rs 485 and am using avr atmega8, now when i make the power on and conncet the rs485 to pc using rs485-rs232 converter using...
Tuesday, 28 September 2010 - 12:25
rf remote reciever with wiegand o/p
regards .. i am trying to use wiegand based access control system using AVR to be interfaced with a RF 433 MHz remote receiver, the transmitter would send the signal in 26 bit...
Wednesday, 8 September 2010 - 11:33
rf 433mhz
hi firends, as usual i am here for some basic questions, i want to link a rf remote control to my existing project... and i have tried to Google "RF MHz" and lots of other...
Wednesday, 11 August 2010 - 11:26
two timers using single 555
hi friends, i want to implement a 555 based flasher using a relay.. i have two digital signals a Enable signal (thats active low)and a Freq_selection signal that selects the...
Saturday, 7 August 2010 - 07:37
switch interface to AVR
hi i want to interface some switches to the AVR... i came out to something like this (the Resistance value is 4.7 k,and VCC=5V,) for a pushbutton, and a normal close switch, all...
Wednesday, 21 July 2010 - 09:24
Regulator is overheating ....
Good Day to all, i designed this circuit , and the problem i am having with this is the regulator gets heated too much, i tried to configure out any reason but failed... I am...
Tuesday, 20 July 2010 - 10:22
avr atmega8 rs485 coding
i am new to usart programming... and i have to impliment a program that has to run on atmega8 and communicate to a far off (more than 50 m in some cases)trminal. i plan to use the...
Sunday, 28 March 2010 - 07:32

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