C188 Serial

After saying that, I turned the radio frequency to 433 MHZ and carefully connected my own Ultraman circuit.

"The international distress signal is usually SOS, and we all know that, but we can't yell SOS into the outside world. We have to convert the SOS into Morse code, and the MOS code is three short, three long and three short." I put down the pointer and picked up the two wires