PicoFlight - Pico-sized flight computer

As years passed assisting students on their rocketry projects and with more and more complex amateur rocketry projects on my count, I wanted to make an all-in-one, super-small, very easily integrable solution that answers all the typical needs.

The PicoFlight is the solution that I've come up with. It's a very tiny, open-source flight computer with all the necessary sensors and I/Os in order to perform all basic tasks needed for the job.

Here are its main features :

• 6-axis IMU : ±32g, ±2000°/s
• 3-axis high-G accelerometer : ±400g
• Barometer : 260 to 1260 hPa
• Flash storage : 16Mo
• RF transceiver : LoRa, (G)FSK, (G)MSK and BPSK modulation capable

And it's pinout :

As in the picture, PicoFlight has already been built, validated and will be published very soon under the CERN-OHL-W v2 license on GitLab.

But this project is not limited to this board only; in fact, extension boards already exist, adding even more functionalities.

As of today, here are the extension boards that I've already designed and will soon follow on GitLab :

• PicoUSB : Same form-factor PCB integrating USB-C to UART and 1S Li-Ion/Li-Po charging capabilities for a simple standalone system.
• PicoAVX : Same form-factor PCB integrating DC motor driver, 4-channel ADC, 1S battery charger & an independent "timer" MCU for a completely integrated avionics solution.

As you may think, this project is a bit on the expensive side for an individual engineer like me, particularly due to the production costs of the PCB and the sub-optimal yield due to hand assembly of these PCBs.

In this way, a sponsorship with PCBWay would be a great help on this project, assisting me with their PCB and PCBA services and by removing a bit of the financial pressure, thus letting me focus on improving/creating boards and improving software to even more assist students and enthusiasts in their amateur rocketry endeavor.