Control stage
About the Control stage PCB
Control stage is an open source STM32 PCB design by oresat, published on GitHub under the GPL-2.0 license. It is a 6-layer board measuring 40 × 36.5 mm, with 78 components from 44 distinct parts.
Its main chip is the STM32G474RET3, from the STM32 family. Other key parts include the MAX892LEUA+, TLV62569DRL and MAX7310ATE. By type, the board carries 39 capacitors, 18 resistors, 6 connectors, 6 test points, 4 ICs and 2 inductors.
It belongs with the sensors and rf & radio designs in this gallery.
From the project
Controller PCB for OreSat reaction wheels, magnetorquers, IMU, and magnetometers
For more information on the OreSat project, please see !
This repo contains the following projects:
The OreSat ADCS Card ADCS M0 microcontroller on its own OreSat Power Domain (OPD) Power switch and LTC4300 that connects the M0 to: BMI088 IMU (onboard the ADCS card) LTC4305 2-Channel I2C Bus Multiplexer (one on each end cap via the backplane, end cards, and connectors to the end caps) Two MMC5883MA magnetometers (two on each end cap, multiplexed by the LTC4305s) Three STSPIN250s for the X, Y, and Z magnetorquers Q1 Reaction Wheel OPD which powers the Q1 RW board Q2 Reaction Wheel OPD which…
Main components on the Control stage
Control stage bill of materials (BOM)
78 components, 44 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MAX892LEUA+ ADP7156ACPZ | DFN-10-1EP_3x3mm_P0.5mm_EP1.65x2.38mm | U1 |
| 1 | TLV62569DRL | SOT-563 | U2 |
| 1 | STM32G474RET3 | LQFP-64_10x10mm_P0.5mm | U3 |
| 1 | MAX7310ATE TCAN330 | SOT-23-8-Fixed | U5 |
| 1 | TPN4R712MD,L1Q | TSON-Advance | Q1 |
| 1 | Crystal_GND24 | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | MEZZ | 0555600307 | J1 |
| 3 | 10132797-021100LF | 10132798-021100LF | J2, J3, J4 |
| 1 | TFM-120-01-L-D-RA J-TE-Debug-2-1734592-0 | J-TE_2-1734592-0 | J6 |
| 1 | PROBE | PinHeader_2x05_P1.27mm_Horizontal | J7 |
| 1 | Board_Def | top-board-def-rev7.1 | H1 |
| 6 | TestPoint_Alt | TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP1, TP2, TP3, TP4, TP5, TP6 |
| 1 | MPZ1608B471ATA00 | L_0603_1608Metric | FB1 |
| 1 | 2.2u | L_1008_2520Metric | L1 |
| 2 | CC0603KRX7R7BB105 47u | C_1210_3225Metric | C1, C2 |
| 2 | CC0603KRX7R7BB105 100n | C_0402_1005Metric | C3, C23 |
| 3 | CC0603KRX7R7BB105 10u | C_0603_1608Metric | C4, C8, C10 |
| 1 | 10p | C_0402_1005Metric | C5 |
| 1 | CL10B104KB8NNNL 10u | C_0603_1608Metric | C6 |
| 1 | 10u | C_0603_1608Metric | C7 |
Show 24 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CC0603KRX7R7BB105 18p | C_0402_1005Metric | C9 |
| 1 | CL10B104KB8NNNL 18p | C_0402_1005Metric | C11 |
| 2 | 22u | C_0603_1608Metric | C12, C17 |
| 4 | CC0603KRX7R7BB105 22u | C_0603_1608Metric | C13, C15, C16, C33 |
| 1 | CC0603KRX7R7BB105 4.7u | C_0603_1608Metric | C14 |
| 1 | DNP | C_0402_1005Metric | C18 |
| 4 | 100n | C_0402_1005Metric | C19, C22, C27, C32 |
| 2 | 1u | C_0402_1005Metric | C20, C26 |
| 2 | CL10B104KB8NNNL 22u | C_0603_1608Metric | C21, C31 |
| 2 | CC0603KRX7R7BB105 10n | C_0402_1005Metric | C24, C35 |
| 2 | CC0603KRX7R7BB105 1u | C_0402_1005Metric | C25, C34 |
| 3 | CL10B104KB8NNNL 1u | C_0402_1005Metric | C28, C37, C39 |
| 2 | CL10B104KB8NNNL 100n | C_0402_1005Metric | C29, C38 |
| 1 | CL10C200JB8NNNC 22u | C_0603_1608Metric | C30 |
| 1 | CL10C200JB8NNNC 100n | C_0402_1005Metric | C36 |
| 4 | RC0603FR-0710KL 100k/1% | R_0402_1005Metric | R1, R4, R5, R10 |
| 1 | RC0603FR-0723K7L 5.1k/0.1% | R_0402_1005Metric | R2 |
| 1 | RC0603FR-0710KL 3.3k/0.1% | R_0402_1005Metric | R3 |
| 2 | RC0603FR-0710KL 10k | R_0402_1005Metric | R6, R7 |
| 1 | CRGCQ0603F2K7 2.2 | R_0603_1608Metric | R8 |
| 1 | RC0603FR-0710KL 442k/1% | R_0402_1005Metric | R9 |
| 2 | CRGCQ0603F2K7 THJP1206ABT1 | R_1206_3216Metric | R11, R12 |
| 1 | RC0603FR-0710KL THJP1206ABT1 | R_1206_3216Metric | R13 |
| 5 | THJP1206ABT1 | R_1206_3216Metric | R14, R15, R16, R17, R18 |
Control stage design files
The KiCad project lives in the oresat/oresat-adcs-hardware repository on GitHub; these links point at the commit this page was built from.
Control stage: common questions
What microcontroller does the Control stage use?
The Control stage is built around the STM32G474RET3, from the STM32 family.
How big is the Control stage PCB?
The Control stage measures 40 × 36.5 mm, has 6 copper layers and is 1.5749 mm thick.
How many components are on the Control stage?
78 components, from 44 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Control stage design files?
From the oresat/oresat-adcs-hardware repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Control stage design in my own project?
Yes, under the terms of its GPL-2.0 license, which oresat chose for the repository.
Can I test firmware for the Control stage without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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