3Pcs Electronic Dice Kit with Reverse Connection Protection LED Dice DIY Electronic Parts

Specification Power supply voltage DC4 5 5 0VBoard size 40 64mmSoldering tips 1 The resistance value should correspond to the label on the board 2 Pay attention to the positive and negative poles of the LED 3 The diode 1N4007 white side is the negative side and 1N4148 black side is the negative side The vertical bar on the board is the negative electrode 4 Care should be taken to distinguish the capacitance value of electrolytic capacitors The long leg is positive 5 The chip notch direction and the base notch direction should be consistent with the notch direction marked on the board 6 Do not connect the positive and negative poles of the power supply Package included 3 x Electronic Dice Kit