https://circuitwizardry.com/starlight-mini/

Our most affordable and best value flight computer.

STARLIGHT MINI is an incredible value flight computer with our MissionControl software and our robust STARLIGHT platform. With a pyro channel for parachute deployment, a pressure and temperature sensor for altitude readings, an accelerometer for measuring thrust and other useful metrics, and an RP2040 for a simple custom firmware solution and blazing-fast data collection, STARLIGHT MINI is the best option at its price point.

STARLIGHT MINI has gotten rid of one of the pyro channels that STARLIGHT had, as well as the exposed GPIO pins and servo ports. This allowed us to make STARLIGHT MINI unbelievably tiny, fitting even in 24mm airframes.

Features

• RP2040 for blazing-fast code execution
• 16MB of flash storage for storing flash data and firmware
• BMP388 pressure and temperature sensor for altitude determination and temperature measurements
• LIS3DHTR accelerometer for launch detection and redundancies as well as thrust readings.
• One pyro channel for single parachute deployment.
• Spot to solder in a buzzer if preferred.
• FULLY COMPATIBLE WITH MISSIONCONTROL AND SUPPORTS CUSTOM FIRMWARE IN PYTHON!

More Info

RP2040 Dual-Core MCU - The RP2040 microcontroller is a very capable chip with 128kB of RAM and can be programmed in MicroPython, as well as C. More information on the RP2040 can be found here.

BMP388 Pressure & Temperature Sensor - The BMP388 is a temperature and pressure sensor. - The pressure readings are used for the firmware’s altitude determination as well as apogee detection.

LIS3DHTR Accelerometer - The LIS3DHTR accelerometer can measure +-16g of acceleration. - Rockets that fly with more acceleration than this are still supported, but accurate readings past +-16g will not be possible.

16MB of flash storage - STARLIGHT MINI has a W25Q128JVSIQ storage chip. - This chip has 16MB of flash storage

1x Pyro Channel - STARLIGHT MINI has one pyro channel for a single parachute deployment. - While most rocket motors have a built-in ejection charge, it can be unreliable and has a very loose tolerance for timing. - With STARLIGHT MINI, you can set parachute ejection timing to the foot.

More information can be found at https://circuitwizardry.com/starlight-mini/, such as a detailed schematic and a full user manual.