Please don't be intimidated by electric circuits and wires. (Electricity and its devices are everywhere in your
daily life.) However, please keep in mind for the following:
- Please follow your teacher and the manual instructions to avoid any trouble related to electricity.
- Don't turn on the power supply without making sure whether the circuit is correct.
- Don't keep the power turned on for a long time. (Switch it off immediately after
- Don't use a high voltage (not more than 5 volts), or it will burn your circuit!