Serial Tx Rx Gnd Rating: 3,5/5 2833 reviews

K-one driver joystick windows 7. Joystick K One Driver for Windows 7 32 bit, Windows 7 64 bit, Windows 10, 8, XP. Uploaded on 2/3/2019, downloaded 302 times, receiving a 90/100 rating by 142 users.

Klavika basic light font. The 3 lines: TX, RX, and GND. Isolation protects the RS-232 ports from voltage surges, lightning strikes, GND loops and noise conditions. The ISO-232-3P9 has a DB9 female connector on the RS-232 serial port, and DB9 male connector on the other RS-232 port. The unit is enclosed in a rugged ABS housing. The serial port runs at 57600 baud, 8 bits. Voltage levels are +3.3V TTL logic, which means TX transmit at 3.3V and VCC is 3.3V. RX has a pull-up resistor. Port is /dev/tts1.

My quadcopter is not a drone!
If you connect an OSD to one of the UARTs, you need to enable MWP (MultiWiiProtocol) on that port. This then causes the flight controller to send flight information on that port. The OSD receives and decodes that information for display.
As waltr said in the other thread, this is also a two way conversation. The OSD can use MWP to tell the flight controller to do things. For example, you can go into the OSD's menu and tell the flight controller to increase the P term for the roll axis. That way, you can tune your quad without even needing to take off your goggles or connect the quad to your PC!
When you connect something to a serial port, you swap the wires so that transmit is connected to receive and vice versa. The reason why the micro MinimOSD has two 5V and ground inputs is for when you are flashing or configuring the OSD. The pins with holes that have the DTR/Rx/Tx/5V/GND connections match up perfectly with the output pins on a USB to serial converter like this one: http://www.banggood.com/CP2102-Micro..p-1026357.html