Sagittarius
About the Sagittarius PCB
Sagittarius is an open source STM32 PCB design by Astrid-Delestine, published on GitHub under the MIT license. It is a 2-layer board measuring 372.4 × 128.1 mm, with 382 components from 124 distinct parts.
Its main chip is the W25Q128JVS, from the STM32 family. Other key parts include the SC091413 and TXS0101DBVR. By type, the board carries 85 diodes, 84 LEDs, 83 switches, 21 capacitors, 19 resistors and 3 ICs.
From the project
All project requirements are listed in ./proj_req.md
Main components on the Sagittarius
Sagittarius bill of materials (BOM)
382 components, 124 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | W25Q128JVS STM32F072-LQFP48 STMicroelectronics | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SC091413 MCP1700-3302E_SOT23 Microchip | SOT-23 | U2 |
| 1 | TXS0101DBVR TXS0101 Texas Instruments | SOT-23-6 | U3 |
| 1 | AO3401A Microdiode Electronics | SOT-23 | Q1 |
| 1 | DTC123JKAT146 ROHM Semicon | SOT-23 | Q2 |
| 1 | CONN_01X02 Conn_ARM_JTAG_SWD_10 | Conn_ARM_JTAG_SWD_10 | J1 |
| 1 | CONN_01X02 SM04B-SRSS JST Sales America | JST_SM04B-SRSS | J2 |
| 1 | 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | CB1 |
| 77 | 420 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | RL1, RL2, RL3, RL4, RL5, RL6, RL7, RL8 +69 |
| 4 | EC11Ex | ALPS_EC11E | ROT1, ROT2, ROT3, ROT4 |
| 1 | PCM12SMTR C&K | SW_SPDT_PCM12 | S1 |
| 1 | SKQGADE010 ALPS Electric | K2-1187SQ-A4SW-06 | S2 |
| 1 | PGUP | MX100 | SW1 |
| 1 | ESC | MX100 | SW2 |
| 1 | 1 | MX100 | SW3 |
| 1 | 2 | MX100 | SW4 |
| 1 | 3 | MX100 | SW5 |
| 1 | 4 | MX100 | SW6 |
| 1 | 5 | MX100 | SW7 |
| 1 | 6 | MX100 | SW8 |
Show 104 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 7 | MX100 | SW9 |
| 1 | 8 | MX100 | SW10 |
| 1 | 9 | MX100 | SW11 |
| 1 | 10 | MX100 | SW12 |
| 1 | MINUS | MX100 | SW13 |
| 1 | PLUS | MX100 | SW14 |
| 1 | LEFT_BACKSPACE | MX100 | SW15 |
| 1 | RIGHT BACKSPACE | MX100 | SW16 |
| 1 | 2U BACKSPACE | MX200 | SW17 |
| 1 | PGDN | MX100 | SW18 |
| 1 | TAB | MX150 | SW19 |
| 1 | Q | MX100 | SW20 |
| 1 | W | MX100 | SW21 |
| 1 | E | MX100 | SW22 |
| 1 | R | MX100 | SW23 |
| 1 | T | MX100 | SW24 |
| 1 | Y | MX100 | SW25 |
| 1 | U | MX100 | SW26 |
| 1 | I | MX100 | SW27 |
| 1 | O | MX100 | SW28 |
| 1 | P | MX100 | SW29 |
| 1 | LBRACE | MX100 | SW30 |
| 1 | RBRACE | MX100 | SW31 |
| 1 | BKSLSH | MX150 | SW32 |
| 1 | HOME | MX100 | SW33 |
| 1 | CAPS LOCK | MX175 | SW34 |
| 1 | A | MX100 | SW35 |
| 1 | S | MX100 | SW36 |
| 1 | D | MX100 | SW37 |
| 1 | F | MX100 | SW38 |
| 1 | G | MX100 | SW39 |
| 1 | H | MX100 | SW40 |
| 1 | J | MX100 | SW41 |
| 1 | K | MX100 | SW42 |
| 1 | L | MX100 | SW43 |
| 1 | COLON | MX100 | SW44 |
| 1 | QUOTE | MX100 | SW45 |
| 1 | ISO_TILDE | MX100 | SW46 |
| 1 | ANSI_ENTER | MX225 | SW47 |
| 1 | ISO_ENTER | MX_ISOEnter_Vertical_LED | SW48 |
| 1 | STEPPED CAPS | MX125 | SW49 |
| 1 | END | MX100 | SW50 |
| 1 | 225_LSHIFT | MX225 | SW51 |
| 1 | ISO_BLACKSLASH | MX100 | SW52 |
| 1 | Z | MX100 | SW53 |
| 1 | X | MX100 | SW54 |
| 1 | C | MX100 | SW55 |
| 1 | V | MX100 | SW56 |
| 1 | B | MX100 | SW57 |
| 1 | N | MX100 | SW58 |
| 1 | M | MX100 | SW59 |
| 1 | COMMA | MX100 | SW60 |
| 1 | DOT | MX100 | SW61 |
| 1 | SLASH | MX100 | SW62 |
| 1 | 225_RSHIFT | MX225 | SW63 |
| 1 | UP | MX100 | SW64 |
| 1 | SPLIT_RSHIFT_FN | MX100 | SW65 |
| 1 | 125_LSHIFT | MX125 | SW66 |
| 1 | 125_RSHIFT | MX125 | SW67 |
| 1 | LCTRL | MX150 | SW68 |
| 1 | LGUI | MX125 | SW69 |
| 1 | 1U_LSPACE | MX100 | SW70 |
| 1 | 225_LSPACE | MX225 | SW71 |
| 1 | 275_RSPACE | MX275 | SW72 |
| 1 | 100_RSPACE | MX100 | SW73 |
| 1 | DOWN | MX100 | SW74 |
| 1 | RIGHT | MX100 | SW75 |
| 1 | 175_LSPACE | MX175 | SW76 |
| 1 | 150_LSPACE | MX150 | SW77 |
| 1 | 150_RALT | MX150 | SW78 |
| 1 | 150_RCTRL | MX150 | SW79 |
| 1 | 175_RSPACE | MX175 | SW80 |
| 1 | LEFT | MX100 | SW81 |
| 84 | LED | LED_THT_2.54mm | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +76 |
| 76 | 1N4148 | D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +68 |
| 1 | RB060M-60TR ROHM | D_SOD-123 | D73 |
| 8 | WS2812-2020 Worldsemi | LED_WS2812_2020 | D78, D79, D80, D81, D82, D83, D84, D85 |
| 1 | 150R@100MHz TAITEC | L_1812_4532Metric_Pad1.30x3.40mm_HandSolder | FB1 |
| 1 | 100N 4.7u | C_0603_1608Metric | C1 |
| 3 | 100N 100n | C_0603_1608Metric | C2, C4, C7 |
| 1 | 100n | C_0603_1608Metric | C3 |
| 1 | 10u | C_0603_1608Metric | C5 |
| 1 | 100N 10n | C_0603_1608Metric | C6 |
| 2 | 100N 1u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C8, C9 |
| 2 | 100N 10n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C10, C11 |
| 1 | 100N 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C12 |
| 2 | 15P 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C13, C14 |
| 3 | 1UF 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C15, C16, C17 |
| 1 | 22UF 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C18 |
| 1 | 10UF 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C19 |
| 2 | 0.1UF 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C20, C21 |
| 1 | 27.4 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1 |
| 1 | 27.4 100k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 1 | 10K 100k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 2 | 100R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R19 |
| 3 | 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R6, R7 |
| 1 | 453K 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R8 |
| 2 | 150 3R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R9, R10 |
| 3 | 10K 3R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R11, R13, R15 |
| 1 | 15R 3R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12 |
| 1 | 2.2K 3R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R14 |
| 1 | 100K 3R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R16 |
| 1 | 470 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R17 |
| 1 | 1.5K 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R18 |
Sagittarius design files
The KiCad project lives in the Astrid-Delestine/Remote-Access-Desktop-Terminal repository on GitHub; these links point at the commit this page was built from.
Sagittarius: common questions
What microcontroller does the Sagittarius use?
The Sagittarius is built around the W25Q128JVS, from the STM32 family.
How big is the Sagittarius PCB?
The Sagittarius measures 372.4 × 128.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Sagittarius?
382 components, from 124 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 Sagittarius design files?
From the Astrid-Delestine/Remote-Access-Desktop-Terminal 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 Sagittarius design in my own project?
Yes, under the terms of its MIT license, which Astrid-Delestine chose for the repository.
Can I test firmware for the Sagittarius 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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