Good afternoon, I have a question: I'm unable to connect my Arduino UNO R3 SMD (CH340G processor) to my IDE (version 2.3.6). I am using a MacBook Air with an Intel i3 processor and macOS Sequoia. Can you help me please?
Thanks, Leonardo
Have you installed the CH340 driver?
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Welcome to the forum leonardo_leite!
Nope, that's the Universal Asynchronous Receiver Transmitter (UART) IC. It converts USB signals to TTL serial signals which are suitable for the Atmel 328p Microcontroler Unit (MCU) to handle via its Rx/Tx pins. The 328p might loosely be referred to as "the processor". (Translation nuance perhaps? IC<=>processor?)
Anyway, as per Maximo, installing the driver is the first step to confirm. Also make sure you are using a data cable, not just a charging cable.
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I tried, but my Mac wouldn't let me.
I suggest you contact the vendor you got the mac from and ask for help installing the CH340G driver and where to get it. Sorry I am not a MAC guy.
As far as I know, there is no need to install a driver in order to use boards with a WCH CH340 USB chip on a macOS machine. I have never installed any such driver on my macOS machine and I have no problems using CH340 boards on it.
My computer does have an M1 processor instead of an "Intel" processor like yours, but I've never seen any information that makes me think that is a relevant difference.
I'm not sure I understood correctly what you mean by "unable to connect". Please provide a more detailed description of what you mean in a reply on this forum topic to help us to understand it.
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- What did you do?
- What were the results you expected from doing that thing?
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