Embedded
--------STMF407DIS--------- Port PC1 -> LED1 Port PC2 -> LED2 Port PC13 -> LED13 Port PD0 -> LED4 Port PD1 -> LED5 Port PD2 -> LED6
Port PA1 -> ADC for Light sensor
port PA2 -> TX uart port PA3 -> RX uart
--------NODEMCU--------- Port D0 -> GREEN_LED //connected status Port D1 -> RED_LED //disconnected status Port D4 -> Switch
Port 13,15 -> usart