this is the updated sketch to send
#include <nRF24L01.h>
#include <RF24.h>
#include <SPI.h>
RF24 radio(7,8); // CNS, CE
const byte adress[6] = "00001";
void setup() {
Serial.begin(9600);
radio.begin();
radio.openWritingPipe(adress);
radio.setPALevel(RF24_PA_MIN);
radio.stopListening();
}
void loop() {
const char text[] = "Es hat geklappt";
radio.startWrite(&text,sizeof(text),false);
radio.write(&text,sizeof(text));
delay(1000);
}