ESP8266 D1 R1 not receiving data from Nucleo via UART

Hello.
I have been struggling with the following problem for a few days. I want to send a char from the Nucleo to the ESP8266 ( I have a D1 R1 WiFi ESP8266 - compatible with WeMos and Arduino). The code from the Nucleo side works fine. I have a problem with the ESP. Here is my code for the ESP:
.

And for the Nucleo:
.

ESP does not respond in any way.
GND connected, TX and RX alternating, I have no idea what is wrong.

Please give me some help and guidance. Greetings

I don't know C, but I would start with:
1. are your devices definitely running at the same speed?
2. connect each of your devices under a PC and try to talk to them via a terminal

The Nucleo works correctly via the sensor UART configured in this way, so I didn't find a fault there.
Both devices have the same speed ( 115200 ).
Nothing works with the ESP, I can't connect it to the PC because I don't have a USB adapter.

spectral95 wrote:

Nothing works with the ESP, I can't connect it to the PC because I don't have an adapter for USB.

.
Then how do you program the ESP? :/

Sorry, I misspoke. Writing data to the database via WIFI, flashing LEDs etc works. What doesn't work is the UART, which I need.