Learn to build a functioning pulse sensor and measure your heart rate.
In this mission, Piperbot and Pip find themselves on a new, swampy planet that makes Pip tired! To figure out if Pip’s pulse has slowed down, you build a heart rate sensor and use it to measure your pulse.
Step 1 on the blueprint refers to the bottom piece. Center the velcro piece as the diagram shows in Step 1.
If a message pops up when you connect your Pico to Piper Make telling you that your firmware needs to be updated, accept, and follow the directions.
Do not press hard on the sensor; a light touch with the thumb is all you need. Play around with which fingers get a more accurate result.
For younger students, if they are having difficulty with Step 2 of the assembly, they may find it easier to put the pieces together with all 4 'legs' on the table as if Step 2 shows them unfolded.
The O-Ring may be too tight. Take it off and have the student lightly close the Pulse instead. Alternatively, you could have them use a rubber band or hair tie, or they can tighten the screws, which will help hold the Pulse in the position they want.
SENSORS EXPEDITION RESOURCES
A servo, which is short for servomotor, is a special kind of motor that is used to control something by moving it. A simple motor moved by spinning continuously. A servo turns to a specific position and it uses gears to transform the high speed of the motor into more force so it can move things more easily.
The servo is connected using three wires: one for ground, one for power, and one for a signal that tells the servo motor what position to turn to. The Pico tells the servo what position to turn to by changing the width of the pulse that it is sending out. A pulse with a shorter "ON" time will turn to one side, and a pulse with a longer "ON" time will turn to the opposite side.
The motor inside of the servo turns very fast, but it is also weak - it cannot apply very much force. The gears inside the servo convert the motor's high speed and low force into a slower speed with more force.
Robotics Technician: Salary $60,570/yr
Automotive Engineer: Salary $95,300/yr
Civil Engineer: Salary $88,050/yr
Industrial Designer: Salary $75,910/yr
CA 3-5.AP.17. Test and debug a program to ensure it accomplishes the intendedtask.
CA 3-5.CS.2. Demonstrate how computer hardware and software work together as a system to accomplish tasks.
CA 3-5.CS.3. Determine potential solutions to solve simple hardware and software problems using common troubleshooting strategies.