Releases: MSTRocketDesignTeam/Avionics-Telemetry-PCB
v3.0.0
Third production version of the board, replaced STM32 with 144 pin version (was in stock).
Rev 1 & 2 had the Switching Mode Power Supply (SMPS) pins of the uController connected to VCC, as indicated in the datasheet. The datasheet also says later on that these pins are never to exceed like 2.5V. We were connecting them to a VCC of 3.3V, which overvolted the internal regulator of the SMPS, and would cause it to eventually fail catastrophically. New chip does not include SMPS feature, as it wasn't used anyway.
Ordered for production from JLCPCB on 12/11/2022.
v2.0.0
Second production version of the board, fixed chip grounding issue.
Ordered for production from JLCPCB on 03/24/2022.
What's Changed
Full Changelog: v1.0.0...v2.0.0
Contributors
Assets 2
v1.0.0
v0.3.5
v0.3.3
v0.3.2
v0.3.1
v0.3.0
Major improvements to PCB Layout and interference prevention.
- Copper ground pours on F and B.
- Improved isolation between data lines
- Expanded via fences around RF section.
- GND plane isolation peninsulas for crystals.
- Simplified I2C, SPI, and USB lines for reduced interference.
- Added 3D models for all components.
- Adjusted positions of RF components for improved impedance matching.
- RF components to 0402 package from 0603 for improved impedance matching.
- Traces for RF section have rounded corners to help improve impedance matching and reduce interference.
- Moved silkscreen labels to outside via fence for improved legibility.
- Improved trace thicknesses for power delivery.
- Updated libraries to include those found in other RDT modules.
- Modified board dimensions to match other RDT modules.