How do you build low voltage stemilator?

To build a low voltage stimulator, start by selecting a microcontroller, like an Arduino, to control the output signals. Use low voltage components, such as transistors or MOSFETs, to switch the desired voltage levels safely. Incorporate appropriate resistors and capacitors to filter and stabilize the signals. Finally, design the circuit on a breadboard or PCB, ensuring all connections are secure and insulated to prevent short circuits.