Use Case: Control TVs via IR from openHAB (Tasmota-flashed IR Blaster + MQTT)

[rqxrqx (Reinhard Schmid)]

You wrote:

@Cplant

• Connect all wires from the markings on the IR Blaster (as seen in Blakadder’s article) to the same pins on the programmer.
• To bring the IR Blaster (as for every other ESP8266) into “flash-able” mode, connect the IO0-Pin (before plugging in the programmer into your computer) to 3,3V. This can easily be done if a breadboard is being used.

As far as I figured out GPIO0 has to be connected to GND and RX and TX have to be crossed.
Is that right?