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using SerialPorts
function analogWrite(file_des::SerialPorts.SerialPort , pin_no::Int64 , val::Int64)
if val > 255 val = 255 end # Make sure val isn't beyond limits
if val < 0 val = 0 end
c = Char(val) # Conversion of val into character
d = string(c) # Converting character to string
s = "W"*string(Char(48+pin_no))*d # Wnm for analog value m on pin n
write(file_des,s)
end
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