Overview • Repository Organization • Releases • References • License
This project involves the development of the TET (Telemetry, Encoding & Transmission) module tailored for a 1U CubeSat platform. The system is engineered to handle TT&C (Tracking, Telemetry, and Command) capabilities, providing long-range telemetry and low-power wireless communication based on the Semtech LR1121 RF transceiver architecture and an STM32L431 microcontroller.
Technical Parameters
- RF Architecture: E80-900M2213S (LR1121)
- Supported Bands: Dual-band operation (915 MHz and 2.4 GHz)
- Modulation Schemes: LoRa, GFSK, FLRC, and LR-FHSS.
- RF Interfaces: Dedicated SMA/IPEX outputs for external antennas
- External Interfaces: SPI, GPIO, and CAN bus (via TCAN3414).
- Power Input: 3 independent 5 V input channels from the EPS (via PC/104)
- Power Regulation: Independent, regulated low-noise 3.3 V rail.
- Onboard Sensors: INA226 (current and voltage monitoring) and TMP112 (temperature monitoring and thermal alerts via I2C).
- Storage: 3 external SPI flash memories configured with TMR (Triple Modular Redundancy) for telemetry buffering and data storage.
docs: Technical documentation and datasheets.hardware: Core hardware files.3D: 3D models (.step).Fabrication: BOM and Gerber files for JLCPCB manufacturing.PCB: KiCad schematics and layout design.
firmware: Examples of firmware implementation.
| Render | Board Name | Status | Latest Release | Date | Datasheet | BOM | Ordering Info |
|---|---|---|---|---|---|---|---|
 |
TET Module v1 | 🧪 Testing | v1r1 | 09-06-2026 | Yes | GERBER (JLCPCB) |
This project was inspired by the TTC and TTC2 modules from SpaceLab UFSC, and the Build a CubeSat project. Thank you to both for making your work open-source, and a special thanks to the Build a CubeSat community for their support.
Missions Associated with this Project
This project is licensed under the permissive, weakly-reciprocal CERN-OHL-W-2.0 open-hardware license. You are free to modify and distribute these files, provided downstream hardware design modifications remain under the same terms.