This was the final and culminating project of engineering 103 course in C language coding. The intended outcome of the project was to design a system that utilizes an embedded device (ESP32 Microcontroller) to collect temperature data and transmit this data via Wi-Fi to an online database for further analysis and processing. The program that runs on the microcontroller takes inputs from both the sensor and over the serial port which it may be connected to. It also has outputs over both the serial port and via Wi-Fi to an online database (Google Sheet). The main input for the device is a voltage across one of the analog pins of the microcontroller. The program utilizes multiple mathematical functions including the Steinhart-hart equation for relating resistance to temperature through a thermistor, to convert this analog signal into a temperature reading. The program collects a temperature data point every second and stores it in an array of fixed size. Once this array is full, the program complies this data into a string and sends this batch of data to a spreadsheet. When the embedded device is communicating over the serial port, the user can input the character "r" to get a report of the data collected including the maximum value recorded, the minimum value recorded and a list of the two-minute averages. In addition to temperature data, a timestamp, the two-minute averages, a rolling average and a loop count are also sent to the google sheet. Once the data arrives at the apps script associated with the google sheet, it is processed by another program which indexes the data and appends it to the last row filled. The code itself is very adaptable and can be updated for different circuit characteristics, sample sizes and data destinations by changing just one variable per parameter.