S105

rusefi·S105·hardware/s105/s105.kicad_pcb

About the S105 PCB

S105 is an open source STM32 PCB design by rusefi, published on GitHub. It is a 2-layer board measuring 86 × 159 mm, with 583 components from 67 distinct parts.

Its main chip is the STM32F427VGT6, from the STM32 family. Other key parts include the case only, LM2903, LM2902 and SIT1042T/3. By type, the board carries 333 resistors, 117 capacitors, 73 diodes, 23 transistors, 9 ICs and 2 crystals.

From the project

Reverse engineering of SOATE S105 396200-3763010-00 ECU using KiCad EDA

https://www.youtube.com/watch?v=v7S3eSeuTio

Alternative unofficial firmware https://github.com/rusefi/rusefi/tree/master/firmware/config/boards/s105

Binary https://rusefi.com/buildserver/rusefibundle_s105.zip

See also https://github.com/rusefi/m74.9

S105, from the project README — From the project README

Main components on the S105

case onlySTM32F427VGT6 LM2903 LM2902SIT1042T/3

S105 bill of materials (BOM)

583 components, 67 distinct parts.

Qty	Part	Footprint	Refs
5	case only	SOIC-8_3.9x4.9mm_P1.27mm	U1, U4, U5, U8, U9
1	STM32F427VGT6 ST	LQFP-100_14x14mm_P0.5mm	U2
1	LM2903	SOIC-8_3.9x4.9mm_P1.27mm	U3
1	LM2902	SO-14_3.9x8.65mm_P1.27mm	U6
1	SIT1042T/3	SOIC-8_3.9x4.9mm_P1.27mm	U7
20	BC847C	SOT-23	Q1, Q2, Q3, Q6, Q7, Q8, Q9, Q10 +12
3	.	SOT-23	Q4, Q5, Q24
1	8MHz 20pF	Crystal_SMD_5032-2Pin_5.0x3.2mm	X1
1	NM	Crystal_HC49-U_Vertical	X2
1	Conn_01x06	JST_EH_B6B-EH-A_1x06_P2.50mm_Vertical	J1
1	368255-2	368255-2	P1
20	IRLR3110Z	TO-252-2	VT1, VT2, VT3, VT4, VT5, VT6, VT10, VT11 +12
4	ISL9V3040D3S	TO-252-2	VT7, VT8, VT9, VT23
6	1N4148W	D_SOD-123	D1, D8, D23, D28, D44, D46
1	.	D_SMC	D2
1	NM	D_SMA	D3
15	.	D_SMA	D4, D7, D11, D12, D13, D14, D16, D17 +7
44	BAV99	SOT-23	D5, D6, D9, D10, D15, D21, D22, D24 +36
4	.	D_SOD-123	D35, D49, D63, D64
1	NM	D_SOD-123	D62

Show 47 more

Qty	Part	Footprint	Refs
1	.	SOT-23	D73
4	~	C_0603_1608Metric	C1, C2, C41, C42
4	C_Small	C_1206_3216Metric	C3, C32, C33, C43
51	C0603	C_0603_1608Metric	C4, C19, C20, C22, C23, C24, C25, C29 +43
1	10nF KEMET	C_0603_1608Metric	C5
2	18pF	C_0603_1608Metric	C6, C7
2	1uF Taiyo Yuden	C_0603_1608Metric	C8, C12
35	100nF KEMET	C_0603_1608Metric	C9, C14, C15, C16, C17, C18, C34, C35 +27
2	2.2uF MURATA	C_0603_1608Metric	C10, C11
4	NM	C_0603_1608Metric	C13, C102, C103, C105
8	C0805	C_0805_2012Metric	C21, C26, C27, C28, C39, C47, C110, C111
2	C1206	C_1206_3216Metric	C50, C51
2	C1210	C_1210_3225Metric	C107, C108
47	3K	R_0603_1608Metric	R1, R2, R12, R16, R17, R19, R20, R27 +39
18	360R	R_0603_1608Metric	R3, R18, R21, R29, R40, R49, R90, R98 +10
48	1R	R_1206_3216Metric	R4, R5, R6, R22, R23, R24, R30, R31 +40
19	82K	R_0805_2012Metric	R7, R25, R33, R44, R53, R58, R94, R102 +11
27	51K	R_0603_1608Metric	R8, R15, R26, R34, R45, R54, R59, R95 +19
2	8K2	R_0603_1608Metric	R9, R63
8	10K	R_0805_2012Metric	R10, R11, R64, R65, R157, R248, R249, R250
2	6K8	R_0603_1608Metric	R13, R67
1	10K StackPole	R_0603_1608Metric	R14
1	6.8k	R_0805_2012Metric	R35
1	2.2k	R_0805_2012Metric	R36
3	18k	R_0603_1608Metric	R38, R281, R282
10	10R	R_0805_2012Metric	R41, R42, R43, R161, R162, R199, R200, R203 +2
2	50k?	R_2512_6332Metric	R57, R163
6	10	R_0603_1608Metric	R60, R62, R69, R78, R79, R81
7	100	R_0603_1608Metric	R61, R71, R80, R153, R204, R233, R236
30	NM	R_0603_1608Metric	R68, R70, R73, R74, R75, R82, R83, R212 +22
11	1k	R_0603_1608Metric	R72, R211, R215, R220, R269, R272, R273, R276 +3
17	22k	R_0603_1608Metric	R76, R164, R205, R213, R214, R217, R221, R237 +9
1	510K StackPole	R_0603_1608Metric	R77
4	3k	R_1206_3216Metric	R86, R87, R88, R89
2	6.8k	R_0603_1608Metric	R152, R210
2	68k	R_0603_1608Metric	R154, R209
8	4.7k	R_1206_3216Metric	R155, R156, R208, R298, R311, R320, R329, R332
11	4.7k	R_0603_1608Metric	R158, R239, R245, R247, R251, R252, R253, R254 +3
7	300 StackPole	R_0603_1608Metric	R202, R264, R280, R283, R303, R305, R323
3	6k	R_0603_1608Metric	R218, R222, R271
2	47	R_0603_1608Metric	R240, R241
7	33k	R_0603_1608Metric	R243, R244, R296, R309, R318, R322, R324
1	82k	R_0603_1608Metric	R246
5	0	R_0805_2012Metric	R256, R257, R258, R259, R260
6	MN	R_0603_1608Metric	R262, R265, R266, R267, R268, R270
2	62	R_0603_1608Metric	R291, R292
12	NM	R_1206_3216Metric	R297, R300, R301, R302, R307, R308, R312, R321 +4

S105 design files

The KiCad project lives in the rusefi/S105 repository on GitHub; these links point at the commit this page was built from.

Layouthardware/s105/s105.kicad_pcb
Schematichardware/s105/s105.kicad_sch

S105: common questions

What microcontroller does the S105 use?

The S105 is built around the STM32F427VGT6, from the STM32 family.

How big is the S105 PCB?

The S105 measures 86 × 159 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the S105?

583 components, from 67 distinct parts. The full bill of materials is listed on this page.

Where can I download the S105 design files?

From the rusefi/S105 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the S105 design in my own project?

The repository has no license, so all rights stay with rusefi. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the S105 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.

S105

About the S105 PCB

Main components on the S105

S105 bill of materials (BOM)

S105 design files

S105: common questions

What microcontroller does the S105 use?

How big is the S105 PCB?

How many components are on the S105?

Where can I download the S105 design files?

Can I use the S105 design in my own project?

Can I test firmware for the S105 without the hardware?

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