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Recent content by dnarenderreddy

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    Ethernet to E1 converter

    indian vendors of e1 to ethernet converter? Any links to basic T1/E1 related ebooks
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    floating point calculations on AT89s8252

    hi all, i want to calculate the result of the expression ah = (range * count*10*resolution)/(3600*1000); and later add it to the previous value of it ahfinal = ahfinal + ah; in brief to explain what i want actually is: count is the count of pulses on timer/counter , now these pulses are...
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    how to write into EEPROM of AT89s8252 in C language

    how to write data into eeprom hello every body , this is narender i am struggling to write into the internal EEPROM of AT89s8252. i need to write a floating point type number into EEPROM. how do u do this. iam using C language and Keil u vison to write the program. can anyone help me out...
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    how to produce echo and reverb effect in audio sounds

    audio echo schematics thanks , i couldnt get those ic's . can anyone tell me about more ics (common ones) with which i can get the required echo or reverb effect in my sound. thank you narender
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    how to produce echo and reverb effect in audio sounds

    reverb ic hi reply please. iam in need narender
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    how to produce echo and reverb effect in audio sounds

    echo effect circuit hi this is narender, can anyone tell me, how to produce echo and reverb effect in audio sounds. i have a small duration sound, i need to lengthen the duration with slowlyu decreasing sound. can anyone tellme how to do this in the most simple way. how can this be donw using...
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    wireless infrared transceievr design

    hello sir, i too need a infrared transceiver circuit . can u please tell me where i can get that. thanks in advance narender
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    circuit digital transfer and receiver

    hi can anyone help me where i can get a schematic of a rf transceiverr whiich will tramsmit and recieve digital data. please help
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    write data in ram onto eeprom when there is a power outage

    how write kwh in eeprom thank you sir, but my problem is not with the recharging circuit its with detecting the power outage at very faster rate. im my project iam using a clock frequency of 11.095 mhz clock. for this clock how fast i should detect the outage and how to detect so fast and...
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    Looking for materials about powerline communication

    Re: powerline communication hi can any one tell me the details of the inpedance matching transformer to be used with a 220 volts 50hz supply to transmit control commands or voice through power lines thanks in advance narender
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    write the data in ram of mcu into eeprom when power outage

    Re: write the data in ram of mcu into eeprom when power outa hi , can u tell me how to measure the time exactly required for writing into the eeprom
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    write the data in ram of mcu into eeprom when power outage

    Re: write the data in ram of mcu into eeprom when power outa ya, its not 25 or 30 seconds, its a matter if i think a max of 2 seconds.. my circuit is already soldered on the pcb i cant have mosfets to switch the power off to other devices. so i have to supply the other devices also. i just need...
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    write the data in ram of mcu into eeprom when power outage

    Re: write the data in ram of mcu into eeprom when power outa hi , my circuit uses the atmel 89s52 microcontroller, i am not sure but the controller will reset itself if the voltage drops below 4 volts. so i cant use 3 volts. i can use 3 compuiter motherboard cells in series, but how ling will...
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    low voltage detector & interrupt

    hi i got the same problem as yours, i need to write the data in ram into a serial eeprom attached. can u give me the circuit you used thanks narender Added after 1 hours 13 minutes: hi, but i think battery will become bulky for my application, how much size will a 9 volts NiMH battery...
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    write the data in ram of mcu into eeprom when power outage

    Re: write the data in ram of mcu into eeprom when power outa hello, iam using at at24c04 ic , it is not the problem with the eeprom its the problem with the power back up for say 15 seconds. Added after 36 minutes: hello banh, i have seen the post u mentioned, its...

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