I cant programm Esp32 cam with the Arduino uno

Ok my bad! So i bought Esp32-cam from Aliexpress and i tried to programm it with my Arduino Uno.

The Connection were ´:
Esp 5V to Uno 5V
Esp gnd to Uno gnd
Esp IO0 to Esp gnd
Esp Tx to Uno Tx
Esp Rx to Uno Rx
Uno Reset to Uno gnd

After the wiring/connecting Esp32-cam with Uno i pasted this link( https://dl.espressif.com/dl/package_esp32_index.json) in Prefrences and download the Esp32 board manager. After installing it i choose Esp32 wroover Module.

The setting for the Upload were:
Upload speed: 115200
Flash frequenzy. 40Mhz
Flashmode: QIO
Partion scheme: Huge APP 3mb(...)
Code debug level: none
Programmer: none Selected

So to see connection i wrote this code:

void setup(){
Serial.println("Namaste");
}
void loop(){
}