The retro accelerometer is intended to act as a portable acceleration measurement device that can be modularly added to a rocket. The device makes use of the MPU6050 which has a three axis accelerometer and gyroscope in it to measure acceleration and input an analog signal to the microcontroller. The microcontroller used for the retro accelerometer is an ATMEGA328P. An SSD1306 OLED display screen is used to display information extrapolated from the microcontroller. Additionally, the Adafruit PowerBoost 1000C IC is used to supply power to the system. The additional requirements that we added to the project are to be able to measure the max acceleration over a specified time period and measure the magnitude of the accelerometer, both of which we were able to accomplish. Other notable accomplishments was being able to connect every component on a single pcb as well as interface between the accelerometer to the microcontroller to the screen. The biggest challenge we encountered when making our product was soldering on the decoupling capacitors. Since the system works without them attached, we ended up not attaching them and soldering on the larger components instead. Some areas of future improvement would be to attach these decoupling capacitors onto the system which will improve the performance of the block as well as adding additional functionality to the screen such as rocket rotation.