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I think you will use the 555 as Pulse Width Modulator and put modulation into pin 5 of the 555,
and yes you could do it with small fm tx/rx or maybe infra red or any analog transmitter from any audio source..just have to couple pin 5 and some level adjustment
Hello Pat,
I suggest you to use Triac instead Solis State Relay (SSR) to control the power from 120Vac.
try this link for sample
The TRIAC : THYRISTORS
regards
Dian
Hi PCBwire,
You just have to set the address mapping (page?) for memory and led by using some address decoder, then the CPU read from memory(ram or rom) then output it to led
or may be you could refer your design with old CGA card.
Hi,
1st try to set your cell as serial bluetooth device mode, then try send at command to send sms, if it works, you just need serial bluetooth module to send data.
regards
Hi,
I thought you should use in+ and in- and use ea/out as error gain feedback.
this mean let the chip compare your sine wave with ref voltage and generate appropriate PWM signal.
cheers
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