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Hi,my self tejas pawar.I have working on one project.in which i use ATmega8
controller.There is simple circuit.The circuit is like that,five switches are
connected to port pins of PORTC(pin1 to pin5).I continuously saning these five
keys and according to whenever key press respected...
I use 12v relay in this circuit which is activated by controller 8051.controller o/p is given to base of transistor BY BC547 .i use base resister of 2.7k.but relay was not on.
only transistor was on.but when i gave 12v supply from directly lm317 to base of transistor then relay was on.
why?
I just noticed that the AP89010 has a VOUT1 and VOUT2 that can be hooked directly to speakers.
Then why an amplifier is needed when the AP89010 can directly drive the speakers ?
hi i use voice ic ap89010 in my project.
I have problem that i connect RST pin to GND throught 1k MFR resister.But some time even if i give trigger to ic to pin num. 10 ic not triggerd. then i short RST pin of ic to GND by wire manually then i give trigger to ic then ic get trigger
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