Why does the serial monitor of my receiver display this when im sending the value 1 from the transmitter?

• MicroscoPy

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  An open-source, motorized, and modular microscope built using LEGO bricks, Arduino, Raspberry Pi and 3D printing.

  

OK, just noticed that you're using "Serial1" hardware serial for communication and USB serial for debugging. 1- You're sure that TX of transmitter goes to RX of receiver, right? 2- You can check this reference for printing floats (or anything). 3- because you're using "println", not "print", then yes, I think you're transmitting the new line as well. 4- I implemented a similar communication protocol earlier, a joystick controller sends strings and the host device receives and interprets it, just check the files in the Arduino folder, maybe they give some inspiration: https://github.com/IBM/MicroscoPy

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