Try making the robotic arm yourself and control with potentiometer .
Digital clock -
I made a digital clock without rtc module and with just some logic .
Digital electroscope -
I made this device to detect charges on a object in volts !
Weather station -
I made this simple weather station to detect the temp. and humidity accurately .
Heart rate sensor -
In covid pandemic heart rate was important and its quite practical too !
Home automation: bluetooth controlled lighting system
Have you ever thought how can we siwtch on and off things or led,fan , this projects is demonstration for how to switch on a led using your smart phone .
Sonar arduino -
I made this sonar which just like the radars we see in movies and works as well !
