Quote by Oyvind Nydal Dahl

“Shopping List A breadboard (Jameco #20601, Bitsbox #CN329) with at least 30 rows. A standard 9 V battery to power the circuit. A 9 V battery clip (Jameco #11280, Bitsbox #BAT033) to connect the battery to the circuit. A standard LED (Jameco #34761, Bitsbox #OP003) A 330 Ω resistor (Jameco #661386…” quote by Oyvind Nydal Dahl — Download Open image

““Shopping List A breadboard (Jameco #20601, Bitsbox #CN329) with at least 30 rows. A standard 9 V battery to power the circuit. A 9 V battery clip (Jameco #11280, Bitsbox #BAT033) to connect the battery to the circuit. A standard LED (Jameco #34761, Bitsbox #OP003) A 330 Ω resistor (Jameco #661386, Bitsbox #CR25330R) for limiting the current to the LED. A polarized 1000 µF capacitor (Jameco #158298, Bitsbox #EC1KU25)””

Oyvind Nydal Dahl

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“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 function on your multimeter. A continuity test checks for a direct connection between two points in a circuit. The symbol for the continuity tester usually looks like the one shown here. You don’t want a direct…

Oyvind Nydal Dahl

“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 the board is the Reset button. Use this to start the game and to restart the game after each player attempts to stop the light. The button next to the LEDs should stop the light when…

Oyvind Nydal Dahl

“NOTE Many electronics enthusiasts also call continuity mode beep mode.”

Oyvind Nydal Dahl

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“MEET THE REACTION GAME CIRCUITS The reaction game will consist of three circuits: A 555 timer circuit that determines the speed of the game A counter that controls which LED light to turn on An SR latch that will add a reset button and an action button This section explains each circuit, but to help you understand their diagrams, let’s…

Oyvind Nydal Dahl

“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 make next. If you’re not sure where to start, why not add more circuits to your reaction game? The LED in the middle is where you want the light to stop, and I suggest adding a…

Oyvind Nydal Dahl

“Before you move on to the next step, check that this circuit is working by connecting an LED with a resistor to the output of the 555 timer as follows: Connect the negative side (short leg) of an LED to the output on pin 3 of the 555 timer. Connect the positive side (long leg) of the LED to a…

Oyvind Nydal Dahl

“Check for Bad and Good Beeps Now, plug your battery clip into the breadboard as you would normally, but without the battery. Touch one measurement lead tip to the positive connector and the other to the negative connector. If you hear a beep, there’s a short circuit, and you need to fix it! Check all your connections to the positive…

Oyvind Nydal Dahl

“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

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“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 this project. Standard hookup wire works, too. A standard 9 V battery to power the circuit. A 9 V battery clip (Jameco #11280, Bitsbox #BAT033) to connect the battery. A 555 timer IC (Jameco #904085, Bitsbox…

Oyvind Nydal Dahl

“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 to see whether it’s working correctly. Set your multimeter to measure voltage. Make sure the black measurement lead is connected to the multimeter’s COM socket, and the red measurement lead is connected to the V socket.…

Oyvind Nydal Dahl

“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. Every time the clock input on pin 14 goes from low to high, the counter increments by one. It counts from 0 to 9, and it has 10 outputs marked 0 to 9. For example, when…

Oyvind Nydal Dahl