Package includes :
Step 1 : Power the BCD Counter module from a 5V regulator as shown in the following image. Press and release the switch. Counter will increment the count in each press and release. Count will be in Binary Coded Decimal (BCD) form which can be read from LEDs.
Step 2 : Clock signals for BCD counter circuit is generated from an astable multivibrator module. BCD counter will increment the count in each clock pulse generated from the Astable multivibrator module. Speed of counting can be varied by changing the value of POT. This counter will count from 0 to 9.
Watch the video demonstration here.
DIY board can be purchased from the following link.