### Agenda: <p> 12:00: Assignment Review <br> 12:30: Review <a href='../../lab/input/voltage.html' target="_self">Voltage Dividers</a>. Build one of the following circuits. How do you know which fixed-value resistor to use? <br> <ul> <li>Potentiometers</li> <li><a href='../../lab/input/hall/index.html' target="_self">Magnetic Field</a></li> <li><a href='../../lab/input/temp/index.html' target="_self">Temperature</a></li> <li><a href='../../lab/input/force/index.html' target="_self">Force/Flex</a></li> <li><a href='../../lab/input/light/index.html' target="_self">Light</a></li> </ul> 1:00: Other Sensors: <br> <br> <ul> <li><a href='../../lab/input/mic/index.html' target="_self">Microphones</a></li> <li><a href='../../lab/input/piezo/index.html' target="_self">Piezoelectric (voltage-generating)</a></li> <li><a href='../../lab/input/IR/index.html' target="_self"> IR transmit-receive (proximity)</a></li> <li><a href='https://learn.adafruit.com/adafruit-lis3dh-triple-axis-accelerometer-breakout/arduino'>LIS3DH </a>Accelerometer, <a href='https://randomnerdtutorials.com/arduino-mpu-6050-accelerometer-gyroscope/'>MPU-6050 Gyro/Accelerometer</a>, <a href='https://www.adafruit.com/product/2472'>BNO055</a> IMU</li> </ul> </p> <p> 1:30: Break <br> 1:45: <a href='../../lab/input/capacitance/index.html' target="_self">Capacitive Sensors</a><br> 2:00: Sensor fabrication workshop: make a capacitance-based sensor. Discuss appplications and calibration. <br> </p> <h3> Assignment: </h3> <p> 1. Use a sensor to measure a physical quantity with your microcontroller. Calibrate your sensor (describe the range between its min and max values, and whether/how you can control this range). Show data in the form of a table or graph. <br> 2. Do the same as (1) with a capacitive sensor you have fabricated yourself using copper tape, aluminum foil, Velostat, etc. </p> <p> Examples: <a href='https://wujibi123.github.io/PHYS_S-12/07_ElectronicInput/index.html'>Dan (thermistor)</a>, <a href='https://silviafesta.github.io/PHYS_S-12/Assignments/assignment6.html'> Silvia (IR phototransistor)</a>, <a href='https://2048-student.github.io/PHYS_S-12/pages/classvii.html'> Andrew (Hall sensor)</a>. </p> <h3> Labs: </h3> Work on sensor fabrication and calibration. Make sure to use lab times this week to develop your concept for your final project. Additionally, use lab time to make up work, debug circuits from previous assignments, etc. <h3> Reading: </h3> <p> Review SparkFun's pages on <a href='https://learn.sparkfun.com/tutorials/analog-to-digital-conversion/all'> Analog to Digital Conversion</a>, <a href='https://learn.sparkfun.com/tutorials/voltage-dividers'>Voltage Dividers</a>, <a href='https://learn.sparkfun.com/tutorials/capacitors'>Capacitors</a>, and <a href='https://learn.sparkfun.com/tutorials/series-and-parallel-circuits'>Series and Parallel Circuits</a>. </p> <p> Read chapters 5 and 6 of <a href='http://mars1980.github.io/resources/making_things_move.pdf' > Making Things Move </a><br> <a href='https://learn.sparkfun.com/tutorials/pulse-width-modulation'>Pulse Width Modulation</a><br> </p> <!-- <h3> Resources: </h3> --> <!-- <p> <a href='https://roberthart56.github.io/SCFAB/SC_lab/Sensors/Sensors.html'>Sensors in the Lab</a><br> <a href='http://academy.cba.mit.edu/classes/input_devices/index.html' >Input device page from "HTMAA" (MIT course).</a> <br> </p> -->