MainBorad R1

wakimizufu·TBSEQ·TBSEQ_Board_V3/mainBorad_R1/mainBorad_R1.kicad_pcb

About the MainBorad R1 PCB

MainBorad R1 is an open source RP2040/RP2350 PCB design by wakimizufu, published on GitHub. It is a 2-layer board measuring 200 × 130.3 mm, with 258 components from 105 distinct parts.

Its main chip is the Raspberry Pi Pico DIP-40, from the RP2040/RP2350 family. Other key parts include the 74AHC1G04W5-7, 4066, LM13700 and Opamp_Dual. By type, the board carries 95 resistors, 36 capacitors, 33 transistors, 11 diodes, 7 ICs and 7 connectors.

Main components on the MainBorad R1

74AHC1G04W5-7 4066 LM13700 Opamp_Dual

MainBorad R1 bill of materials (BOM)

258 components, 105 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	74AHC1G04W5-7	SOT95P285X140-5N	IC3
1	4066	DIP-14_W7.62mm_LongPads	IC12
1	LM13700	DIP-16_W7.62mm_Socket_LongPads	U1
1	Opamp_Dual	DIP-8_W7.62mm_Socket_LongPads	U2
3	Opamp_Dual	DIP-8_W7.62mm_LongPads	U3, U4, U5
19	NPN	TO-92_HandSolder	Q1, Q11, Q13, Q14, Q15, Q16, Q17, Q18 +11
7	PNP	TO-92_HandSolder	Q2, Q8, Q9, Q10, Q27, Q36, Q38
1	2SC3325-Y	2SC3325YLF	Q4
4	HN4A06J(TE85L,F) HN1C01FU-GR,LF	HN1C01FUGRLF_DIP8	Q12, Q21, Q22, Q26
2	NJFET	TO-92_HandSolder	Q28, Q39
2	CONN_01X02_PIN Conn_01x02_Pin	PinHeader_1x02_P2.54mm_Vertical	J3, J8
1	MJ-462	MJ462	J6
1	CONN_01X03_PIN Conn_01x03_Pin	PinHeader_1x03_P2.54mm_Vertical	J7
1	CONN_01X02 Conn_01x02	PinHeader_1x02_P2.54mm_Vertical	J12
1	CONN_01X01_PIN Conn_01x01_Pin	PinHeader_1x01_P2.54mm_Vertical	J13
1	CONN_01X05 Conn_01x05	JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical	J14
1	AnPw	PinSocket_1x03_P2.54mm_Vertical	AnPw1
5	0.1uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	DgC1, DgC3, DgC4, DgC5, DgC6
1	0.047uF	C_Rect_L7.0mm_W2.5mm_P5.00mm	DgC2
1	1N4148W	D_SOD-123	DgD1

Show 85 more

Qty	Part	Footprint	Refs
1	FM24CL16B-GTR	SOIC127P602X173-8N	DgIC1
2	74VHC541FT	SOP65P640X120-20N	DgIC2, DgIC3
1	TLP2304(TPR,E TLP2304_TPR,E	SOIC127P700X230-6N	DgIC4
1	LM358	SOIC-8_3.9x4.9mm_P1.27mm	DgIC5
1	KDJ03-5 KDJ03-5 MIDIOUT	KDJ035	DgJ1
1	Conn_01x08	PinHeader_1x08_P2.54mm_Vertical	DgJ2
1	Conn_01x04	PinHeader_1x04_P2.54mm_Vertical	DgJ3
1	Conn_01x06	PinHeader_1x06_P2.54mm_Vertical	DgJ5
1	KDJ03-5 KDJ03-5 MIDIIN	KDJ035	DgJ8
1	MJ-8435 MJ-8435 SYNC IN	MJ-8435	DgJ9
1	MJ-8435 MJ-8435 CV OUT	MJ-8435	DgJ11
1	MJ-8435 MJ-8435 GATE OUT	MJ-8435	DgJ12
1	MJ-8435 MJ-8435 SYNC OUT	MJ-8435	DgJ13
1	Conn_01x05	PinHeader_1x05_P2.54mm_Vertical	DgJ16
1	DgPw	PinSocket_1x03_P2.54mm_Vertical	DgPw1
2	1K	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	DgR1, DgR2
4	220	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	DgR3, DgR4, DgR8, DgR9
1	22K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	DgR5
1	10K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	DgR6
1	5.1K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	DgR7
1	B3F-1000S	B3F1060	DgS1
1	Raspberry Pi Pico DIP-40	Raspberry Pi Pico DIP-40_W17.76mm	DgU1
1	IRLML6402	SOT-23W_Handsoldering	DgU2
2	10uF	C_Disc_D5.1mm_W3.2mm_P5.00mm	PwC1, PwC3
1	1000uF/25V	CP_Radial_D10.0mm_P5.00mm	PwC2
2	0.1uF	C_Disc_D5.1mm_W3.2mm_P5.00mm	PwC4, PwC9
1	470uF/25V	CP_Radial_D5.0mm_P2.50mm	PwC5
1	100uF/25V	CP_Radial_D5.0mm_P2.50mm	PwC6
1	SBM245L	D_DO-41_SOD81_P5.08mm_Vertical_AnodeUp	PwD1
2	MF-R050	MFR050	PwF1, PwF2
1	BP5293-50	TO254P570X1700X1780-3P	PwIC1
1	L7812	TO-220-3_Horizontal_TabDown	PwIC2
1	Barrel_Jack_Switch	BarrelJack_Horizontal	PwJ1
4	Conn_01x02_Pin	PinHeader_1x02_P2.54mm_Vertical	PwJ2, PwJ3, PwJ4, PwJ5
1	4.7uh/0.5A	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	PwL1
1	4MS1R202M6QES	4MS1R202M6QES	PwS1
1	2MS1T1B4VS2QES	2MS1T1B4VS2QES	SW1
1	3296W-1-502A 10K	3296W1502A	TM1
1	3296W-1-502A 500K	3296W1502A	TM3
1	3296W-1-502A 50K	3296W1502A	TM4
1	3296W-1-502A 5K	3296W1502A	TM5
1	RK09D117000B	RK09D117000B	VR1
3	PTV111-3420A-A103 50K(B)	PTV1113420AA103	VR2, VR7, VR8
2	PTV111-3420A-A103 50K(A)	PTV1113420AA103	VR3, VR5
1	PTV112-4420A-A504 50K(B)2連	PTV1124420AA504	VR4
1	PTV111-3420A-A103 1M(A)	PTV1113420AA103	VR6
1	PTV111-3420A-A103 10K(A)	PTV1113420AA103	VR9
11	D	D_A-405_P2.54mm_Vertical_AnodeUp	D1, D2, D3, D24, D25, D26, D28, D29 +3
2	0.01UF 0.01uF	C_Rect_L7.0mm_W2.0mm_P5.00mm	C1, C2
2	10UF/25V 10uF/25V	CP_Radial_D5.0mm_P2.50mm	C3, C4
3	0.01UF 0.01uF	C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C5, C10, C33
2	1UF/25V 1uF/25V	CP_Radial_D5.0mm_P2.50mm	C6, C8
1	2.2UF/25V 2.2uF/25V	CP_Radial_D5.0mm_P2.50mm	C7
8	1UF/50V 1uF/50V	CP_Radial_D4.0mm_P2.00mm	C11, C13, C14, C15, C17, C22, C23, C29
3	0.1UF 0.1uF	C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C12, C25, C27
3	10UF/16V 10uF/16V	CP_Radial_D4.0mm_P2.00mm	C16, C30, C72
1	0.018UF 0.018uF	C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C18
4	0.033UF 0.033uF	C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C19, C21, C24, C26
2	1UF/50V 1uF/50V	CP_Radial_D5.0mm_P2.00mm	C20, C62
2	47UF/16V 47uF/16V	CP_Radial_D4.0mm_P2.00mm	C28, C55
1	0.001UF 0.001uF	C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C34
1	0.22UF 0.22uF	C_Rect_L7.2mm_W3.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C35
1	0.047UF 0.047uF	C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C54
13	2.2K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R1, R4, R5, R26, R67, R68, R69, R70 +5
5	220K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R2, R28, R62, R63, R103
18	100K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R3, R15, R20, R35, R59, R66, R72, R73 +10
1	47K 10K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R6
2	33K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R7, R12
2	5.1K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R8, R13
2	510	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R9, R10
6	100	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R11, R17, R22, R25, R95, R152
23	10K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R14, R16, R34, R36, R47, R61, R64, R65 +15
1	30K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R18
1	24K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R19
8	22K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R21, R30, R45, R110, R111, R117, R146, R151
1	1.5K 510	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R23
1	100K 47K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R24
1	1.5M	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R27
2	47K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R29, R46
2	10K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R31, R32
1	1M	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R91
1	1K(TEMPCO)	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R100
1	27K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R106
1	68K	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R138
2	22	R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R147, R150

MainBorad R1 design files

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

MainBorad R1: common questions

What microcontroller does the MainBorad R1 use?

The MainBorad R1 is built around the Raspberry Pi Pico DIP-40, from the RP2040/RP2350 family.

How big is the MainBorad R1 PCB?

The MainBorad R1 measures 200 × 130.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MainBorad R1?

258 components, from 105 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 MainBorad R1 design files?

From the wakimizufu/TBSEQ 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 MainBorad R1 design in my own project?

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

Can I test firmware for the MainBorad R1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.