SSRU v4.0

HKUST-Red-Bird-Racing-EVRT·GEN6_ELEC·SSRU_v4.0/SSRU_v4.0.kicad_pcb

About the SSRU v4.0 PCB

SSRU v4.0 is an open source AVR/Arduino PCB design by HKUST-Red-Bird-Racing-EVRT, published on GitHub. It is a 2-layer board measuring 95 × 78 mm, with 68 components from 39 distinct parts.

Its main chip is the ATMEGA328P-A, from the AVR/Arduino family. Other key parts include the BQ76940DBT, MCP2515-XST, ISO1050DUB, TPS54302 and TJA1051T. By type, the board carries 30 capacitors, 16 resistors, 7 ICs, 6 jumpers, 2 crystals and 2 connectors.

From the project

ELEC Github Repo for Gen 6

Main components on the SSRU v4.0

BQ76940DBT ATMEGA328P-A MCP2515-XST ISO1050DUB TPS54302 TJA1051T SGM722

SSRU v4.0 bill of materials (BOM)

68 components, 39 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	BQ76940DBT SGM722	SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder	U1
1	ATMEGA328P-A ATmega328P-A	TQFP-32_7x7mm_P0.8mm_L	U2
1	MCP2515-XST SGM722	SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder	U3
1	ISO1050DUB LM2576S-5	TO-263-5_TabPin3_Handsolder	U4
1	TPS54302 MCP2515-xST	TSSOP-20_4.4x6.5mm_P0.65mm	U6
1	TJA1051T	SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder	U10
1	SGM722	SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder	U69
1	20MHZ 16MHz	Crystal_HC49-U_Vertical_W_SMD	Y1
1	20MHz	Crystal_HC49-U_Vertical_W_SMD	Y4
1	CONN_02X03_ODD_EVEN Conn_01x24	HD241_24pin	J2
1	CONN_01X05 AVR-ISP-6	PinHeader_2x03_P2.54mm_Vertical	J4
1	Fuse	Fuse_1210_3225Metric_Pad1.42x2.65mm_HandSolder	F2
6	Jumper_2_Open	SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm	JP1, JP2, JP3, JP4, JP5, JP6
1	SW_Push	SW_PUSH_6mm_H5mm	SW1
1	1N4148W SMA Diode	D_SMA_Handsoldering	D2
1	1N4148W LED	LED_0805_2012Metric_Pad1.45x1.40mm_HandSolder	D3
1	6.8UH 330uH	L_10.4x10.4_H4.8	L1
10	1UF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C1, C3, C4, C6, C8, C9, C10, C12 +2
1	1UF 10uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C2
2	1UF 22pF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C5, C17

Show 19 more

Qty	Part	Footprint	Refs
1	1UF 100uF	CP_Radial_D6.3mm_P2.50mm_handsolder	C7
1	1UF 330uF	CP_Radial_D6.3mm_P2.50mm_handsolder	C11
2	100NF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C15, C23
3	4.7UF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C16, C31, C32
1	12PF 10uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C18
1	12PF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C19
1	10UF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C24
2	100NF 16pF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C26, C27
1	22PF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C29
2	22UF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C36, C37
2	100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L	C39, C40
5	1M	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R1, R2, R8, R9, R10
4	50k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R3, R6, R11, R12
1	10M	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R4
2	4.7k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R5, R7
1	500K 10M	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R15
1	10M 10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R16
1	10K 120R	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R17
1	22.1K 330R	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L	R38

SSRU v4.0 design files

The KiCad project lives in the HKUST-Red-Bird-Racing-EVRT/GEN6_ELEC repository on GitHub; these links point at the commit this page was built from.

SSRU v4.0: common questions

What microcontroller does the SSRU v4.0 use?

The SSRU v4.0 is built around the ATMEGA328P-A, from the AVR/Arduino family.

How big is the SSRU v4.0 PCB?

The SSRU v4.0 measures 95 × 78 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SSRU v4.0?

68 components, from 39 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 SSRU v4.0 design files?

From the HKUST-Red-Bird-Racing-EVRT/GEN6_ELEC 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 SSRU v4.0 design in my own project?

The repository has no license, so all rights stay with HKUST-Red-Bird-Racing-EVRT. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the SSRU v4.0 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.