Microcouple

georgesleen·microcouple·pcb/microcouple.kicad_pcb

About the Microcouple PCB

Microcouple is an open source RP2040/RP2350 PCB design by georgesleen, published on GitHub under the MIT license. It is a 4-layer board measuring 29.5 × 34.3 mm, with 129 components from 30 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the USBLC6-2P6, MCP73831T-2ACI/OT, AP63203WU-7, IS31FL3729-QFLS4 and CAP1188-1-CP. By type, the board carries 69 diodes, 28 capacitors, 15 resistors, 8 ICs, 2 connectors and 2 switches.

Main components on the Microcouple

USBLC6-2P6 RP2040 MCP73831T-2ACI/OT AP63203WU-7 IS31FL3729-QFLS4 CAP1188-1-CPIRM-V838M3-C/TR1W25Q128JVSIQ

Microcouple bill of materials (BOM)

129 components, 30 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	USBLC6-2P6 USBLC6-2P6-MS TECH PUBLIC	SOT-666	U1
1	RP2040 Raspberry Pi	QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm	U2
1	MCP73831T-2ACI/OT MCP73831 Microchip Tech	SOT-23-5	U3
1	AP63203WU-7 Diodes Incorporated	TSOT-23-6	U4
1	IS31FL3729-QFLS4 IS31FL3729 ISSI(Integrated Silicon Solution)	QFN-32-1EP_4x4mm_P0.4mm_EP2.65x2.65mm	U5
1	CAP1188-1-CP CAP1188 Microchip Tech	QFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm	U6
1	IRM-V838M3-C/TR1 Everlight Elec	IRM-V8__M3-C-TR1	U7
1	W25Q128JVSIQ Winbond Elec	SOIC-8_5.3x5.3mm_P1.27mm	U8
1	AO3415 MDD(Microdiode Semiconductor)	SOT-23	Q1
1	TAXM12M4RFBCCT2T 12MHz 12pF Yajingxin	Crystal_SMD_3225-4Pin_3.2x2.5mm	X1
1	USB_C_Socket SHOU HAN	USB-C-SMD	J2
1	Conn_02x03_Odd_Even	PinHeader_2x03_P1.27mm_Vertical	J4
1	Battery_Cell	PinSocket_2x01_P1.27mm_Vertical	BT1
1	B3U-1000P SW_Push Omron Electronics	SW_SPST_B3U-1000P	SW1
1	MSK12CO2 SHOU HAN	MSK12CO2	SW2
2	XL-1005UGC Green XINGLIGHT	LED_0402_1005Metric	D1, D4
1	1N5819W 40V 1A GOODWORK	D_SOD-123	D2
65	XL-1005SURC Red XINGLIGHT	LED_0402_1005Metric	D3, D5, D6, D7, D8, D9, D10, D11 +57
1	IR26-61C/L302/TR8 IR Everlight Elec	LED_SMD_L3.0-W2.7-RD	D69
1	HCB2012KF-121T30 120R @ 100MHz TAI-TECH	L_0805_2012Metric	FB1

Show 10 more

Qty	Part	Footprint	Refs
1	PNR252012-2R2M 2.2uH APV	L_1008_2520Metric	L1
8	GRM155R60J475ME87D 4.7uF Murata Electronics	C_0402_1005Metric	C1, C8, C9, C11, C13, C14, C15, C17
18	TCC0402X5R104K160AT 100nF CCTC	C_0402_1005Metric	C2, C5, C6, C7, C10, C12, C16, C18 +10
2	0402CG140J500NT 14pF FH (Guangdong Fenghua Advanced Tech)	C_0402_1005Metric	C3, C4
5	RC-02K512JT 5.1k FH (Guangdong Fenghua Advanced Tech)	R_0402_1005Metric	R1, R2, R6, R7, R8
1	1k FOJAN	R_0402_1005Metric	R3
3	SCR0402J100K 100k VO	R_0402_1005Metric	R9, R14, R16
3	RTT02103JTH 10k RALEC	R_0402_1005Metric	R10, R13, R15
2	FRC0402J152TS 1.5k FOJAN	R_0402_1005Metric	R11, R12
1	330R FOJAN	R_0402_1005Metric	R17

Microcouple design files

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

Microcouple: common questions

What microcontroller does the Microcouple use?

The Microcouple is built around the RP2040, from the RP2040/RP2350 family.

How big is the Microcouple PCB?

The Microcouple measures 29.5 × 34.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Microcouple?

129 components, from 30 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 Microcouple design files?

From the georgesleen/microcouple 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 Microcouple design in my own project?

Yes, under the terms of its MIT license, which georgesleen chose for the repository.

Can I test firmware for the Microcouple 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.