Digital Particulate Sensor
for Room Alert

The final digital particulate sensor is a room monitoring unit which provides feedback to the end user on areas with high levels of particulate. To build this particulate sensor a lot of smaller components were pieced together to help make it work properly. The unit is an attachment sensor to AVTECH’s room alert which will receive the data. Our sensor provides feedback to the room alert, that is then displayed nicely for the end user. To provide that particulate feedback we have a particulate sensor, blower and PIC chip working together to transmit that data over to room alert. The PIC chip pulses the sensor, which in return will send raw data back to the chip. This data is filtered through a smoothing algorithm and sent to room alert to be displayed for the end user. The blower is equipped to help move the particulate through the sensor. The final product is packaged in a nice little enclosure which has an intake for the particulate to move through the sensor.

Through my technicalities, I used MPLAB which is a software application that lets me develop the PIC(Programmable Integrated Circuit) chip into collecting data from the sensor.As for testing, I used Arduino to test out the sensor's capabilities in how it transmit/receives data. Measuring the bits it takes in/out, I was able to point how how fast the baud-width rate should be and to clean the data to run more smoothly using C programming language.