So it should be relatively simple to make this ... one for the LED control circuitry and another for the power supply. As expected, the power supply uses the example circuit from the LNK304 ...

The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...

However, this accessibility means that it’s easy to get in over your head and make some simple mistakes ... This means it’s possible to short circuit an LED strip without actually tripping ...