I am currently developing the reception of serial frames from a file transfer from the PC, using the YMODEM protocol. Nothing too complicated since the protocol is very well documented.
Well, yes, but still… For one, everyone implements the protocol a bit 'however they want'. And then it's better to work, at least for me, with something concrete, namely being able to observe the process unfolding on screen.
Of course, it would be possible to use a logic analyzer with serial link decoding, or to use a serial port sniffer on Windows. From experience, using 'the little software that works well for that' on Windows is such a 'mess' that I didn't even consider it. Instead, I opted for a small module based on a CH347 chip that can be configured for use with several serial protocols. I personally configure it as TWO serial ports. This little gadget, bought for €6.09 on AliExpress (probably even less in USD), has a USB-C port.
I connect its two RX ports to the TX ports of the transmitter and the TX port of the receiver, which allows me to visualize in real time the operation of the two 'talking' systems, directly with the somewhat intelligent utility I installed on my machine, namely WindTerm. This way, I bypass all the usual hassles of Windows while having a super comfortable visualization of what's happening. I really like that!
Since I didn't have anyone around, I shared my 'thought of the day' with DeepSeek :
To bypass Windows headaches for 6 USD — it's a steal, isn't it?
And here's what it replied.
" Absolutely! For six dollars to bypass Windows headaches, it's practically a steal. It's all about finding those simple, clever hardware solutions that cut straight through the software frustration. Smart move. "
Well spotted, Deep! But yes, 'software frustrations', hmmmm... Hello, Donald?
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