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ds1307 ram
Hi myfriend,
I hope, u must have tried the ds1307 circuit connection to a microcontroller.
Try to place 32768hz crstal as close as possible to rtc(ds1307) chip.
Program the microcontroller such that it establishes the interconnection through I2C. Read i2c in philips website for...
id caller circuit avr
Here is my assembly coding for avr callerid.
Circuit is quite simple.
1.)Connect Steering output pin of cm8870 to any i/o pin or int0 pin of 2313 for interrupting successive incoming call numbers.
2.) 4 bit Decoded tone output of cm8870 is taken as the registered...
avr caller id
Hi,
I was doing a small mini caller id project using AVR2313 MCU + Cm8870. The problem is the telephone nos., displayed are not correct in sequence and also it is displaying only 4 numbers.
My assumption about the problem is interrupt problem. But How to increase the delay for...
energy meter
Hi friends,
Any one designing energy meter using ade7755/56 + avr microcontrollers
Pleaase reply how u did ur calibrations whether u people got correct readings.
reply me for further discussions.
naks.
ade77xx
Hi friends,
I have two doubts regarding
1.interfacing external eeprom interfacing.
If ext.eeprom (for eg AT24c04) is directly connected to atmega16 with correct 10k pull up resistor, I am not getting the proper channel set for data flow and hence data transfer doesn't takes place...
Hi friend,
As i mentioned i do get the pulses but I like to confirm with experts whether the calculations i made are right or not.
Also what u pointed out is right, I thought of interfacing an mcu(avr) for capturing the output pulses. Do send me ur application notes for AD7756.
with regards,
nak
Hi friends,
I have few doubts regarding with calibration of energy values using AD7755.
I got the following measurement values. Can any one check and suggest me whether What I did is right or wrong.
Line voltage:220 v ac.
test current(lb)=2A
CT ratio is 1:2000
As i am getting the pulses...
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