How do you plan to solve it? Using wokwi simulator to place the parts that base on the diagram and also to test if working
Code
void setup() {
// put your setup code here, to run once:
pinMode(LED_BUILTIN,OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(LED_BUILTIN, HIGH);
delay(400);
digitalWrite(LED_BUILTIN, LOW);
delay(800);
}/*Paste your code here*/