| Modules | I/O Ports | Microcontroller Resources |
| Pyroelectric Infrared Sensor Module | PA8 | I/OPorts |
| HC-SR04 Ultrasonic Module | PA4, PB6 | Timer TIM4, I/O ports |
| Photoresistor Sensor | PA0 | ADC |
| HC05 Bluetooth Module | PB10, PB11 | USART3 |
| LED Lighting | PA6 | TimerTIM3 PWM |
| Push button module | PB12 | I/O |