USB Serial adapters: Difference between revisions
| (2 intermediate revisions by the same user not shown) | |||
| Line 20: | Line 20: | ||
See also [[USB RS-485]]. | See also [[USB RS-485]]. | ||
=AdaFruit USB TTL dongle= | |||
[[image:Adafruit-usb-ttl-dongle.png]] | |||
See [[AdaFruit_USB_TTL_dongle]] | |||
=categories= | =categories= | ||
Latest revision as of 14:36, 18 May 2023
A null modem is often required to connect these USB serial adapters to DCE such as modems with the USB representing the DTE when plugged into a computer. The DCE port usually has a male DB9 which implies a null-modem is required.
Some adapters for RJ45 ports have roll-over wiring which avoids the need of a null modem for convenience. These cables usually have a female DB9 on one end and an RJ45 connector on the other. There are also combined RJ45 plug to USB serial adapter cables that integrate the cross-over cabling in their wiring between USB-A and RJ45 plugs.
PL-2303
- approximately $10
This chipset works out-of-the-box with Debian.
FT232
Future Technology Devices works out of the box with Linux and Windows. This is my favourite as it has flashing LEDs. Approximately $23.
QinHeng Electronics CH340 serial converter
See also USB RS-485.
AdaFruit USB TTL dongle
