Smart cane project

The project consist of creating a smart cane for blind people and it contains three ultrasound sensors, a transistor to amplify the corrent provided by the microcontroller, a diode to control the eletrical intensity direction, a capacitor keeping the excess of current from the three vibration motors. The smart cane vibrates in a proportional way depending on the distance of an object and detects objects located on the right side, the left side and the front side. All will be controlled by an Arduino or ESP-32 microcontroller