LithosphereRocketry
Pining for the Fjords
- Joined
- Feb 19, 2017
- Messages
- 882
- Reaction score
- 93
So, as well as rockets, I also dabble in programming and electronics. Of course, that means that I'm required to make my own flight computer... I'm under 18, so I can't do dual deploy, but I can still stage composites. (Can I use A10's as separation motors for dual deploy?) I'll build it with 4 pyro channels and a barometer in case I end up selling it. I've also considered active stabilization with canards, so I'll throw in 4 servo channels & an accelerometer/gyro breakout. Datalogging is nice... Throw in an 8k nonvolatile FRAM board...
Oh wait, I'm out of pins. Throw in a shift register and put all 4 pyros, 3 LEDs, and a buzzer on 3 pins... Sounds good to me. Program via separate USB serial adapter...
There won't be any possibility of GPS or telemetry.:sigh: I'm out of pins (again) and I can't put any sensors on shift registers.
Current parts list:
-ATMega328 processor
-74HC595 shift register
-BMP280 barometer breakout
-MPU6050 accel/gyro breakout
-8kB SPI FRAM breakout
-SOT-223 size MOSFETs (4)
-5V regulator
-100uF power supply stabilizing capacitors (2)
-22pF oscillator capacitors (2)
-Crystal for processor clock
-Piezoelectric buzzer
-LEDs (4)
-330 ohm resistors (4)
-10k resistor
-Reset pushbutton
-Lots of headers
-Screw terminal blocks (6 2-pin)
I probably forgot something and will need to redesign completely... But I do have everything tentatively routed out, because I was bored...
More will come... at some point...
Oh wait, I'm out of pins. Throw in a shift register and put all 4 pyros, 3 LEDs, and a buzzer on 3 pins... Sounds good to me. Program via separate USB serial adapter...
There won't be any possibility of GPS or telemetry.:sigh: I'm out of pins (again) and I can't put any sensors on shift registers.
Current parts list:
-ATMega328 processor
-74HC595 shift register
-BMP280 barometer breakout
-MPU6050 accel/gyro breakout
-8kB SPI FRAM breakout
-SOT-223 size MOSFETs (4)
-5V regulator
-100uF power supply stabilizing capacitors (2)
-22pF oscillator capacitors (2)
-Crystal for processor clock
-Piezoelectric buzzer
-LEDs (4)
-330 ohm resistors (4)
-10k resistor
-Reset pushbutton
-Lots of headers
-Screw terminal blocks (6 2-pin)
I probably forgot something and will need to redesign completely... But I do have everything tentatively routed out, because I was bored...
More will come... at some point...