Plan A: batteries are outside requires daily charging
Plan B: Original switch: press→on / press→off
Modified switch(remove the small hook): press→on / not press→off
Plan C: use latex to assure insulation
circuit making
Default · 03/12/2022
Plan A: batteries are outside requires daily charging
Plan B: Original switch: press→on / press→off
Modified switch(remove the small hook): press→on / not press→off
Plan C: use latex to assure insulation
