Temperature and Humidity Monitor

This monitor is an Arduino that has a sensor that obtains the temperature and humidity, which is displayed on an LCD. The modifications include data logging to an SD Card and using the values to turn on/off different appliances.

Engineer

Rohan P

Area of Interest

Computer Science

School

Dougherty Valley

Grade

Incoming Senior

Final Milestone

My final milestone is the increased reliability and accuracy of my robot. I ameliorated the sagging and fixed the reliability of the finger. As discussed in my second milestone, the arm sags because of weight. I put in a block of wood at the base to hold up the upper arm; this has reverberating positive effects throughout the arm. I also realized that the forearm was getting disconnected from the elbow servo’s horn because of the weight stress on the joint. Now, I make sure to constantly tighten the screws at that joint.

Third Milestone

My final milestone is the increased reliability and accuracy of my robot. I ameliorated the sagging and fixed the reliability of the finger. As discussed in my second milestone, the arm sags because of weight. I put in a block of wood at the base to hold up the upper arm; this has reverberating positive effects throughout the arm. I also realized that the forearm was getting disconnected from the elbow servo’s horn because of the weight stress on the joint. Now, I make sure to constantly tighten the screws at that joint.

Second Milestone

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My final milestone is the increased reliability and accuracy of my robot. I ameliorated the sagging and fixed the reliability of the finger. As discussed in my second milestone, the arm sags because of weight. I put in a block of wood at the base to hold up the upper arm; this has reverberating positive effects throughout the arm. I also realized that the forearm was getting disconnected from the elbow servo’s horn because of the weight stress on the joint. Now, I make sure to constantly tighten the screws at that joint.

First Milestone

My first milestone was creating my temperature and humidity monitor and displaying the results on an LCD. I used a DHT22 sensor to get readings of temperature and humidity and the Arduino code displayed them on the LCD. The LCD changes frequently because the sensor takes readings every 2 seconds. My main challenge was transitioning the code because it was originally supposed to run on the Arduino serial monitor, so I had to make it compatible to an LCD. Another challenge was connecting the LCD to the Arduino because most LCD’s can connect straight to a breadboard, but mine needed wires. I really enjoyed learning about how to use an Arduino and being able to customize my code. Next, I am planning to make modifications, like adding data logging and controlling appliances.

Starter Project: TV-B-Gone

My Starter Project was the TV-B-Gone, which can turn off most types of TVs from a fairly long distance. I soldered all the parts onto the circuit board, which included: transistors, resistors, LEDs, the on button, and the microcontroller. My main challenge was learning how to solder, which was the basis of my project because that is how I connected all of the parts to the circuit board. I also struggled with connecting the wires to the circuit board because they kept fraying and falling off. I am excited to try the TV-B-Gone on all different types of TVs.

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