Really simple C++ Arduino Question -- 2

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Imekamilika

Imechapishwa

over 1 year ago

$10-30 CAD

Kulipwa wakati wa kufikishwa

I have a function that returns an integer value which can be negative or positive. I need to pass the integer over Arduino hardware serial and store it in an integer on the receiving Arduino. However serial only allows to send 1 8 bit byte at a time as a 8 bit unsinged integer so negative values get messed up.

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Inatumika 1 yr ago

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@Engineer1337

To transmit negative numbers over serial, you can use two's complement representation. Two's complement representation is a way to represent negative numbers in binary. To find the two's complement representation of a negative number, you can first find the absolute value of the number in binary. Then, you can invert all the bits and add 1 to the result. For example, to find the two's complement representation of -5, you can first find the binary representation of 5, which is 101. Then, you can invert all the bits to get 010, and add 1 to get 011. The two's complement representation of -5 is therefore 011. I have a script if you want it hire me!!!!!!!!!!!!!!!!!!!!

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@emannoua

Hi! I'm a certified embedded systems Engineer with 7years experience in the field and very good knowledge on microcontrollers like esp32, arduino, stm32...etc; I also have experience in designing PCB with good signal integrity using Altium, kicad and easyEDA. I bid on your project because I have the expertise to deliver a quality work in a very short time. Please, respond to the offer so that we can discuss details of your project. I'm a perfectionist and I'm ready to start your work immediately. Thank you in advance. Best Regards

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@TabbyMichael

Hi, how are you doing? I am Michael, I have carefully read through the description of your project, I am interested and fully capable of executing it with my array of skillsets. - Arduino - C++ - C I have successfully performed similar projects in the past. I would be delighted to engage in a conversation about the project. Dm me for a 15-30 minutes chat about your project, I would love to share my solution(s) with you. Thanks

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