arduino and tinkecad on LED and pnp transistor connect the (+) to pin (13) and connect the ground to (-) then start with capacitor (0.33mF) on (E) port and connect the out to the secend capacitor (0.1 ...

A novel Internet of Things (IoT) -enabled system is presented to improve the usability and accessibility of audio playback for those with visual impairments. To enable a simple and hands-free ...