Build the Caroler
Build the Circuit
Figure 1 is the schematic and Figure 2 shows the parts placement for this circuit.
- Build your circuit as shown below.
Figure 1 - Christmas Caroler Schematic
Figure 2 - Christmas Caroler Wiring Photo
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Circuit Practice with BlocklyProp
Learn to build simple circuits on a Propeller Activity Board or breadboard with a Propeller FLiP module. Create BlocklyProp graphical programs for blinking LEDs, controlling LEDs with pushbuttons, playing notes on a piezo speaker, and more. You will be building real-world STEM skills!
Propeller C - Simple Circuits
Build simple circuits on the Propeller Activity Board, and write Propeller C programs to interact with them. Blink lights, beep a speaker, measure voltage, and more.
Heart Rate Measurement Circuit
Ever wondered how your fitness tracker is able to measure your heart rate? Learn how build a finger-clip device to observe and measure your heart rate using LEDs and a light sensor.
Build the QTI Line Follower
Each QTI sensor is connected to a post that is mounted on the underside of the chassis. This positions the sensors right above the ground surface.
- Assemble the QTI sensors and mount them to the underside of the ActivityBot chassis:
Wire Up and Test the Board
Schematics and Building the Circuits
Figure 1 below shows the schematic for the Magic BS2 board, and Figure 2 displays the optional mounting bracket assembly for the LCD display.
Figure 1 – Magic BS2 Board Schematic
Test the Whisker Switches
It is essential to test the whisker switches before programming your robot to navigate with them. That way, you can be sure the whiskers are sending the right messages. Otherwise, they might be telling the Propeller that they detect something even though they didn't, or vice-versa.
Test the Whisker Switches
It is essential to test the whisker switches before programming your robot to navigate with them. That way, you can be sure the whiskers are sending the right messages. Otherwise, they might be telling the Propeller that they detect something even though they didn't, or vice-versa.
Activity 2: Field Testing
In this activity, you will build and test indicator LEDs that will tell you if an object is detected without the help of the Serial Monitor. This is handy if you are not near a PC or laptop, and you need to troubleshoot your IR detector circuits.
Connect and Test the Servo
A hobby servo is normally used to hold the positions of radio controlled model airplane flaps, boat rudders, and car steering. A micro servo is one of the smallest versions of hobby servos. Hobby servos also come in continuous rotation versions which can be used to drive wheels of rolling robots, but the one in your kit is the standard variety that turns to and holds a position.
In this activity, you will: