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firing triac using variable voltages
hi,
I m currently working on project named, Butt Welding controller.... In this pro TRIAC (BTA41) is used to control the load voltage(AC)....
89c52 microcntroller is used to provid Variable voltage To fire the TRIAC.... Via DAC0808....
Now finally i want...
how to write at commands
If you are using C language for programming, Take a string
e.g.
unsigned char send_data[] = "AT+CMGR=2";
and send this on UART using SBUF, use any loop such as for loop.
and after sending this string you have to send CR
(carriage return ASCII CODE = 0x0d)
and you...
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