“LET’S MAKE A GAME! You’ve built all sorts of small circuits in this book, and each circuit was designed to teach you a particular concept. In this chapter, you’ll combine all your new skills to build a reaction game. The… — Oyvind Nydal Dahl Copy Share Image
“Check the Continuity First, check that you don’t have a short circuit between the positive and negative columns. To do this, use the continuity… — Oyvind Nydal Dahl Copy Share Image
“Step 4: Practice Your Reaction Time! All that’s left is to connect the battery to the supply columns. The button at the bottom of… — Oyvind Nydal Dahl Copy Share Image
“NOTE Many electronics enthusiasts also call continuity mode beep mode.” — Oyvind Nydal Dahl Copy Share Image
“MEET THE REACTION GAME CIRCUITS The reaction game will consist of three circuits: A 555 timer circuit that determines the speed of the game… — Oyvind Nydal Dahl Copy Share Image
“ADD A BUZZER TO YOUR GAME Congratulations: You’ve finished the last project in the book! Now, it’s up to you to decide what to… — Oyvind Nydal Dahl Copy Share Image
“Before you move on to the next step, check that this circuit is working by connecting an LED with a resistor to the output… — Oyvind Nydal Dahl Copy Share Image
“Check for Bad and Good Beeps Now, plug your battery clip into the breadboard as you would normally, but without the battery. Touch one… — Oyvind Nydal Dahl Copy Share Image
“Step 4: Use the Capacitor to Light the LED Watch the LED while removing the battery. The LED shouldn’t turn off right away when… — Oyvind Nydal Dahl Copy Share Image
“Shopping List A breadboard (Jameco #2212218, Bitsbox #CN204) with at least 60 rows. Breadboard jumper wires (Jameco #2237044, Bitsbox #CN236)—you’ll need around 35 for… — Oyvind Nydal Dahl Copy Share Image
“Check for Power If the connection to the NAND-gate IC is correct, use a multimeter to measure the output voltage from the start/stop circuit… — Oyvind Nydal Dahl Copy Share Image
“A Counter to Turn the LEDs On To control the LEDs, you’ll use a decade counter, which is an IC that counts input pulses.… — Oyvind Nydal Dahl Copy Share Image
“Step 5: What If the Game Isn’t Working? If you’ve followed my instructions so far, the circuits from Steps 1 and 2 should be… — Oyvind Nydal Dahl Copy Share Image
“Step 2: Add the Capacitor Connect your capacitor to the battery. Because the capacitor is polarized, place the pin marked with a minus sign… — Oyvind Nydal Dahl Copy Share Image
“Tools A wire cutter (Jameco #35482, Bitsbox #TL008) to cut small pieces of wire. A multimeter (Jameco #2206061, Bitsbox #TL057, Rapid Electronics #55-6662) to… — Oyvind Nydal Dahl Copy Share Image
“CHECKING CONNECTIONS AS A TEAM Finding circuit problems is called debugging, and it’s easier to do with some help. When you get stuck, ask… — Oyvind Nydal Dahl Copy Share Image
