EPS v1
About the EPS v1 PCB
EPS v1 is an open source PCB design by Migsster, published on GitHub. It is a 2-layer board measuring 85 × 85 mm, with 25 components from 16 distinct parts.
Other key parts include the INA219, ME6211C33M5(MAIN), TPS27081ADDCR, ME6211C33M5(GPS) and ME6211C33M5(CAMERA). By type, the board carries 9 capacitors, 7 resistors, 5 ICs, 1 connector, 1 battery holder and 1 diode.
It belongs with the rf & radio, sensors and science & space designs in this gallery.
From the project
1U CubeSat avionics prototype with custom OBC/EPS/Payload PCBs, STM32 embedded firmware, LoRa TT&C, GNSS and Python mission analysis.
STM32F411 · 3 custom PCBs · Embedded C · SPI/I²C/UART · LoRa TT&C · GNSS · IMU · FATFS · ESP32-CAM · Python
StormSat was my final-year Aerospace Engineering team project: a functional 1U CubeSat engineering prototype built around three custom PCBs — OBC, EPS and Payload — with onboard sensing, navigation, data logging, imaging, LoRa telemetry/telecommand and ground-side mission analysis.
Main components on the EPS v1
EPS v1 bill of materials (BOM)
25 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | INA219 | IN2 | U1 |
| 1 | ME6211C33M5(MAIN) | SOT-23-5 | U2 |
| 1 | TPS27081ADDCR | DDC0006A_M | U3 |
| 1 | ME6211C33M5(GPS) | SOT-23-5 | U4 |
| 1 | ME6211C33M5(CAMERA) | SOT-23-5 | U5 |
| 1 | Conn_02x20_Odd_Even | PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | Battery_Cell | BatteryHolder_MPD_BH-18650-PC | BT1 |
| 1 | ~ | TP4056-Module | Charger_tp1 |
| 1 | LED | LED_0603_1608Metric | D1 |
| 7 | 1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C6, C8, C9, C10 |
| 1 | NC | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | C4 |
| 1 | 1uF | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | C5 |
| 2 | 10KΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R7 |
| 1 | 1KΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 3 | 100KΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R6 |
EPS v1 design files
The KiCad project lives in the Migsster/StormSat-CubeSat repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/EPS/EPS_v1.kicad_pcb
- Schematichardware/EPS/EPS_v1.kicad_sch
EPS v1: common questions
How big is the EPS v1 PCB?
The EPS v1 measures 85 × 85 mm, has 2 copper layers and is 1.600198 mm thick.
How many components are on the EPS v1?
25 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the EPS v1 design files?
From the Migsster/StormSat-CubeSat repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EPS v1 design in my own project?
The repository has no license, so all rights stay with Migsster. Use it as a reference, and ask the author before reusing the design.
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