AVIONICS
REV-A (DEV BOARD)
The first ever system designed for Project Summit was never intended to fly, but rather be a test bed for software and schematic testing. It was soldered on a prototyping breadboard and had so many short circuits that it took 4 hours just to get sensor readings. Immediately after this failure, development on REVA begun.
Status: Destroyed (November 2019 – December 2019)
Software: Test Software
Processor: Arduino Nano ATMega328P
IMU: MPU-6050
Baro: BMP280
Video: Here
REV-A
After developing the prototype avionics system, the first ever PCB by Edward was designed. The computer used a shocking IMU and a very slow processor in the form of an Arduino Nano. The computer never reached flight as the tiny trace widths were burnt off the board in a smoky disaster. Pretty much everything was wrong with this computer, but a lot was learnt.
Status: Retired (February 2020 – April 2020)
Software: Test Software
Processor: Arduino Nano ATMega328P
IMU: MPU-6050
Baro: BMP280
REV-B
REVB was never produced as it became apparent just how bad the design was while it was being designed in Eagle. There was almost no difference to REVA. After speaking to some experts from NASA and other engineering companies, I realised the main aspects to improve and quickly moved on to REVC.
Status: Not Produced
Software: N/A
Processor: Arduino Nano ATMega328P
IMU: MPU-6050
Baro: BMP280
REV-C
REVC had two major upgrades, much thicker traces for higher voltage/current and an LSM9DS1 IMU, as the MPU6050 is the most shocking sensor to be ever designed. It also featured a second voltage regulator to handle the current of the servo motors and improved pyro channel circuitry so that the MOSFET’s did not destroy themselves. When designing this board, all of the necessary math was completed, and the components datasheets were checked to ensure every part would work well and handle the loads put on it.
Status: Retired (May 2020 - July 2020)
Software: Test Software
Processor: Arduino Nano ATMega328P
IMU: LSM9DS1
Baro: BMP280
REV-D
This is the first computer to actually fly in Summit, as the upgraded processor allowed faster speeds and more accurate control. ‘KEEP MOVING FORWARD’ was written on the silkscreen just below P1, as this was the fourth PCB and the first one to work well after relentless failures on previous iterations. The new addition of the Teensy 4.0 microcontroller worked great, however there is still a huge amount of room for improvement. This computer still has no datalogging as the SD card schematic has many problems.
Status: Active (July 2020 - Present)
Software: Flight Software 1.0
Processor: Teensy 4.0 Arm Cortex M7
IMU: LSM9DS1
Baro: BMP280
Video: Here
REV-E
REVE is the first entirely SMD computer to be developed by Edward, meaning there is no THT breakout sensors and everything is on-board. The computer reached production, though an untraceable short during soldering lead to it not being used and the project being put on hold due to time and financial constraints. The processor schematic is loosely based on the Teensy 3.2, while the sensor schematics are based on relevant breakout boards by Sparkfun and Adafruit.
Status: Incomplete (On Hold)
Software: N/A
Processor: MK20DX256VLH7 (Same as Teensy 3.2)
IMU: LSM9DS1
Baro: BMP280