Sirius
About the Sirius PCB
Sirius is an open source PCB design by harshil21, published on GitHub under the MIT license. It is a 4-layer board measuring 42.1 × 75.5 mm, with 57 components from 43 distinct parts.
Other key parts include the Power_Connector, AP63301WU-7, RFM95W-915S2, C5370977 and LC29H (DA). By type, the board carries 19 capacitors, 16 resistors, 8 diodes, 6 ICs, 4 transistors and 2 inductors.
It belongs with the rf & radio designs in this gallery.
From the project
Personal rocket with GPS RTK + Radio Telemetry
This repository will contain all the components which I intend to use for the payload of my rocket. It will include but won't be limited to:
1) Original KiCAD designs for integrating Quectel's LC29H (DA) and (BS) GPS RTK modules 2) Custom Antenna(s) research, building, and tuning, for both GPS and radio telemetry to receive RTCM correction messages from my base station to the rocket. 3) CAD design for assembly of the antennas and modules into the rocket. 4) Microcontroller code (exact microcontroller TBD) which will communicate with an accelerometer (TBD), the GPS module, and a LoRA module…
Main components on the Sirius
Sirius bill of materials (BOM)
57 components, 43 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Power_Connector | XT60 | U1 |
| 1 | AP63301WU-7 | SOT95P280X100-6N | U2 |
| 1 | RFM95W-915S2 | RFM95W-915S2 | U3 |
| 1 | C5370977 MIC5219-3.3YM5 | SOT-23-5 | U4 |
| 1 | LC29H (DA) | LC29H | U5 |
| 1 | Pi Zero 2W | Pi_hat_generic | U7 |
| 1 | Q_PMOS_GSD | SOT_7DS-T1-GE3_VIS | Q1 |
| 2 | Q_NMOS_GSD | TSOT-23 | Q2, Q4 |
| 1 | Q_Dual_NMOS | SOT-363_SC-70-6 | Q3 |
| 1 | IPEX_MHF1 | TE_CONMHF1-SMD-T | J1 |
| 1 | Buzzer | CSS0575ASMTTR | BZ1 |
| 3 | LED_Small | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2, D4 |
| 1 | TVS | D_SOD-882 | D3 |
| 1 | Schottky | SOD-323HEUS2H_TOS | D5 |
| 1 | 3.3V Zener | SOT-23-3 | D6 |
| 1 | Orange LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D7 |
| 1 | 1N4148W | D_SOD-123 | D8 |
| 1 | 6.8u | 1277AS-H-1R0M=P2 | L1 |
| 1 | 68n | L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | L2 |
| 4 | 10u | C_0603_1608Metric | C1, C7, C16, C17 |
Show 23 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 0 | C_0603_1608Metric | C2, C3 |
| 2 | 100n | C_0603_1608Metric | C4, C18 |
| 1 | 47p | C_0603_1608Metric | C5 |
| 2 | 22u | C_0603_1608Metric | C6, C8 |
| 1 | 1000u | CP_Elec_10x10.5 | C9 |
| 2 | 0 | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C10, C11 |
| 2 | 100p | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12, C13 |
| 1 | 470p | C_0603_1608Metric | C14 |
| 1 | 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C15 |
| 1 | 33p | C_0603_1608Metric | C19 |
| 1 | 0 | R_0603_1608Metric | R1 |
| 1 | 158k | R_0603_1608Metric | R2 |
| 1 | 30.1k | R_0603_1608Metric | R3 |
| 1 | 2k | R_0603_1608Metric | R4 |
| 1 | 0 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5 |
| 1 | 10r | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6 |
| 1 | 1.2k | R_0603_1608Metric | R7 |
| 1 | 3.3k | R_0603_1608Metric | R8 |
| 4 | 10k | R_0603_1608Metric | R9, R10, R14, R15 |
| 1 | 12k | R_0603_1608Metric | R11 |
| 1 | 100R | R_0603_1608Metric | R12 |
| 1 | 1k | R_0603_1608Metric | R13 |
| 1 | 180R | R_0603_1608Metric | R16 |
Sirius design files
The KiCad project lives in the harshil21/PinPointer repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/sirius/sirius.kicad_pcb
- Schematickicad/sirius/sirius.kicad_sch
Sirius: common questions
How big is the Sirius PCB?
The Sirius measures 42.1 × 75.5 mm, has 4 copper layers and is 1.6062 mm thick.
How many components are on the Sirius?
57 components, from 43 distinct parts. The full bill of materials is listed on this page.
Where can I download the Sirius design files?
From the harshil21/PinPointer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Sirius design in my own project?
Yes, under the terms of its MIT license, which harshil21 chose for the repository.
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