Buying an USB TTL Serial adapter was a really good idea. Inspecting all kinds of UART streams directly from your laptop, without having to program a microcontroller, or digging for the logic analyzer, or the oscilloscope, just makes things easier sometimes.
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@scy I guess they wanted to cut some corners and spare them the complexity of handling different timings and settings per port. Forcing customers to buy multiple chips saves all the effort while increasing revenue.
Huh. ST's newer microcontrollers provide up to 14 UARTs and USB-PD, now I feel tempted to build a silly monstrosity.
@kathakatze My birthday is this month 😁
@scy LogiLink AU0032 has 4 ports (that one I have actually used for very weird lab equipment, it works very well), LogiLink AU0033 apparently has 8 ports. Not sponsored 😅
@scy that would be cool!
At work we have these 19"-rack-sized RS232-to-RFC 2217 multiplexers, but their price is in the "request a quote" button range…
For 3.3V levels, a spare server with USB hub running ser2net (likewise RFC 2217) is the current solution, but yours still sounds better!
@daniel_bohrer I just found this chunky boi, and if you scroll down they also have some RS232 and RS485 devices.
https://www.waveshare.com/usb-to-8ch-tt.htm
Its 5 V input is _optional,_ they say, and for most scenarios USB power should be sufficient.
@scy oh nice, for < 30€ it's even affordable :)
@daniel_bohrer I'd prefer a smaller one and would be fine with sacrificing CTS, RTS and VCC for that, but yeah 🤷♂️
That said, why are these only available with a single transceiver per device?
Give me 8 UART heads per USB port! It's not like the bandwidth would be a problem…!