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If I use >BBB instead of >iii... That's because "B" is a byte. So you end up sending 3 bytes:struct.pack("BBB", 1, 2, 3)\x01\x02\x03"i" is an int and has a size of 4, so you send 4*3 = 12 bytes:...

Unless you want to implement some form of scripting engine, you can't.Arduino code is compiled code, not interpreted code. There is no way of converting text into runnable code, since that is done by ...

What you are trying to achieve is not easy. Expect to spend a lot of timedeveloping, testing and tuning it.The first step would be to work the acoustics of your device. The soundsensors are not ...

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The effect that you see is type promotion, in the C++ standard called "integral promotion", which happens implicitly. Values of type char are cast to int. Commonly, and in your case too, the ...

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The AVR Arduinos (Uno, Nano, Mega) have auto-reset function. At opening of USB connection the circuit around USB resets the MCU. After reset the bootloader waits a second for a new upload. If the ...

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Found this Arduino Forum Thread helpful.# wget \https://pypi.python.org/packages/source/p/pip/pip-6.0.8.tar.gz#md5=2332e6f97e75ded3bddde0ced01dbda3\ --no-check-certificate# easy_install pip-6.0....

One approach that I have used for similar purposes is to generate the appropriate header files (or module or whatever) from a simple text file for all the required uses.Since you already know python ...

you must use this code>>> import serial>>> ser.close() # close port

Yes,its possible with the recent new ArduinoPro H7 which has abilities to upload a written programme in Python and JavaScript and its a dual core,32bit.

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It does not appear that Firmata has proceeded with the ability to change the analog reference source. You referenced one of the issues opened for it, but I don't see anywhere where it committed to the ...

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Majenkos comment (above) solved the problem:"You need to wait after opening the serial port for the board to finish resetting and the bootloader to run and exit before you can send any commands."...

To my knowledge, there is not a "python to ATMega architecture" compiler out there. However, it's not true that MicroPython only runs on PyBoard. There are versions for installation also on the ...

You can not run python on an UNO. If you want to use python on a microcontoller you should look into boards supported by MicroPython or Circuit Python

With some Arduino boards, yes. You want a board like the Yun (unfortunately retired now, but there are probably others similar) which has a MIPS SoC on it that runs Linux (specifically OpenWRT). The ...

It sounds like you need a lot of compute power. You can either put the sensors and AI on one device (and @majenko's suggestion of a Raspberry Pi would be a direction to pursue) or you need two devices,...

You're calling delay() in the onWsEvent() callback. The ESPAsyncWebServer documentation specifically says not to do that in the 'Important things to remember' section:You can not use yield or delay ...

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but is there something about arduino that requires using latin-1?No, not really.What it comes down to is that Serial.read() reads bytes, irrespective of whatever encoding they may be being used ...

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We cannot know, if your python code also has a problem. But your Arduino code will send the series of "V" only once.You are using this while loop:while(counter < maxnum)in there you ...

I removed free(value) - rookie mistake - but that didn't completely solved the problem (but reduced frequency of occurrences).Seems like declaring array like char val[50] and passing it to function ...

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I would embed the call to .getData() into a try block and handle this specific exception with except UnicodeDecodeError. There can always be a transmission error, especially when the script is started....

Thanks to chrisl and timemage's comments, I figured out the issue: the Arduino was sending the data too fast and the bytes were piling up in the computer's inbound buffer. I solved this by adding a ...

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There are two things going on here.First of all, if you look up the readline() method in Python that is referenced in the PySerial manual, you'll see the following:readline(size=- 1, /)Read and ...

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There is no best way, but there is a better way (and more efficient way).For an arbitrary forward torque of '50', the sending frame should be:[161, 0, 0, 0, 50, 0, 0, 0]And for a command of '-50', ...

Opening a Serial connection will reset the Arduino. The python code may be doing that when it creates the port. Put a Serial.print("Starting") line in your setup function to see if that's ...

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There are multiple solutions but the simplest one is probably to use Software serial, I2C, or SPI. The idea is basically the same for any of the protocols. You select one Arduino which is gonna be the ...

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Ok, after quite some time looking for something that would allow me to easily control an arduino with the raspberry pi, I found the FIRMATA protocol which allows one to communicate with the arduino ...

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The question is more "Is there a way to send data from Python ?" than "Is there a way to send them from Tensorflow to an Arduino ?" and the Answer is yes.In Tensorflow your can recover your result in ...

The problem is that your code works but you substract 48 from what you received. Which if python sends a char with values: '0' '1' '2' it will result in the serially outputted values of NUL SOH STX ...

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On a normal Arduino board, no, it's not possible from a sketch POV. With a Leonardo or similar ATMega32U4 based board it may be possible to give it a unique VID/PID combination, and even possibly ...