Breadboard (solderless breadboard) is a great way to construct electronic projects easily and in less time without the need of soldering. You can use breadboards to make all sorts of fun electronics projects. A breadboard is a rectangular plastic board with a bunch of tiny holes in it. These holes let you easily insert electronic components to prototype an electronic circuit. It is easy to remove a component if you make a mistake, or just start over and do a new project. Extra jumper wires are used to make connections.
Each projects is followed by a circuit schematic, a breadboard layout, parts list and photo. All the projects are tested before they were added and all of them work. The parts can be easily obtained and are cheap.
Project 76. LED flasher (2).
Project 77. LED chaser.
Project 78. Fire fly.
Project 79. Clap switch - transistor.
Project 80. Clap switch - IC 555.
Project 81. Clap switch - IC 4017.
Project 82. Dark detector.
Project 83. Automatic dark detector.
Project 84. Water detector alarm.
Project 85. Water detector alarm - 6V.
Project 86. Water detector alarm - 9V.
Project 87. Touch switch as water detector.
Project 88. Water level warning indicator.
Project 89. Water level alarm.
Project 90. Ultrasonic insert repellent.
Project 91. Insert repellent - IC.
Project 92. Mosquito repeller - transistor.
Project 93. Mosquito repeller - IC.
Project 94. Adjustable 10 minutes timer.
Project 95. Touch switch - ON-OFF.
Project 96. Sensitive touch switch.
Project 97. Water alarm / LED flasher.
Project 98. Touch switch - IC.
Project 99. Amplifier IC 555.
Project 100. Audio amplifier.