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I have write the followings.
My target to have a square wave, where y=0 at 0<=x<=30, y=1 at 30<=x<=60 and y=0 at 60<=x<=100.
x = 30:0.1:60;
y = square(2*pi*25*x,100);
plot(x,y)
but it only works at 30<=x<=60
anybody can help this?
Yes, GrandAlf is correct.
U need to do some conversion on the signal level. one it, u may use MAX232 to interface from ur RS232 port to your PIC. Can check on the hardware connection, you may need around 4 capacitors. Then Tx and Rx line to the uC.
Inside the programming, try UART to test the...
2.0 device is backward compatible with usb 1.1
if 2.0 device connected to 1.1 ports, it will display port connected is not high speed and will run at reduced speed.
thats a wonderful idea.
but in terms of cost saving, i don't think that reprint it with combinations of color and make them blank again is considered cost saving.
we save paper, but we waste on ink.
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