Spin coater v1

BirdbrainEngineer·Spin-coater-v1·Hardware/BirdbrainSpinCoaterPCB_v1.1/BirdbrainSpinCoaterPCB_v1.1.kicad_pcb

About the Spin coater v1 PCB

Spin coater v1 is an open source RP2040/RP2350 PCB design by BirdbrainEngineer, published on GitHub under the MIT license. It is a 2-layer board measuring 102 × 76 mm, with 46 components from 30 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the LM7805. By type, the board carries 10 resistors, 8 diodes, 7 test points, 7 capacitors, 6 connectors and 3 transistors.

From the project

Open hardware & software DIY spin coater

So... in a nutshell, a spin coater is essentially just a controllable/programmable spinner onto which one can attach a variety of substrates.

Multiple extremely important parts of the device, such as the hub and sample holder combo that makes up the gravity chuck design of this spin coater, are meant to be 3d-printed. So, it is basically a necessity to have access to a basic 3d printer... or a cnc mill if going overkill.

Main components on the Spin coater v1

Pico LM7805

Spin coater v1 bill of materials (BOM)

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

Qty	Part	Footprint	Refs
1	Pico	RPi_Pico_SMD_TH	U1
1	LM7805	TO-220-3_Vertical	U2
1	FAN_4PIN Fan_4pin	PinHeader_1x04_P2.54mm_Vertical	M1
1	IRF9540N	TO-220-3_Vertical	Q1
1	BC547	TO-92_Dual	Q2
1	PN2222A	TO-92_Dual	Q3
1	Keyboard	PinHeader_1x08_P2.54mm_Vertical	J1
3	SD-Card Reader	PinHeader_1x06_P2.54mm_Vertical	J2, J5, J6
1	LCD Display	PinHeader_1x16_P2.54mm_Vertical	J3
1	PowerConnector	TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal	J4
1	Fuse	Fuseholder_Clip-5x20mm_Littelfuse_100_Inline_P20.50x4.60mm_D1.30mm_Horizontal	F1
1	Fuse	Fuse_1210_3225Metric	F2
3	GND	PinHeader_1x01_P2.54mm_Vertical	TP1, TP2, TP3
1	12V FAN	PinHeader_1x01_P2.54mm_Vertical	TP4
1	TM	PinHeader_1x01_P2.54mm_Vertical	TP5
1	PWM	PinHeader_1x01_P2.54mm_Vertical	TP6
1	5V	PinHeader_1x01_P2.54mm_Vertical	TP7
1	1N5819	D_DO-41_SOD81_SOD123_P10.16mm_Horizontal	D1
5	1N4005	D_DO-41_SOD81_SOD123_P10.16mm_Horizontal	D2, D3, D4, D5, D6
2	LED	LED_D5.0mm	D7, D8

Show 10 more

Qty	Part	Footprint	Refs
1	100U 100u	CP_Radial_D5.0mm_P2.00mm	C1
4	0.1U 0.1u	DualFootprint_C1206_Radial	C2, C5, C6, C7
1	0.33U 0.33u	DualFootprint_C1206_Radial	C3
1	50U 50u	CP_Radial_D5.0mm_P2.00mm	C4
2	10K	DualFootprint_R1206_Axial7.62	R1, R2
1	1K	DualFootprint_R1206_Axial7.62	R3
1	6K8	DualFootprint_R1206_Axial7.62	R4
4	10K	Potentiometer_Bourns_3296W_Vertical	R5, R6, R7, R8
1	68K	DualFootprint_R1206_Axial7.62	R9
1	4K7	DualFootprint_R1206_Axial7.62	R10

Spin coater v1 design files

The KiCad project lives in the BirdbrainEngineer/Spin-coater-v1 repository on GitHub; these links point at the commit this page was built from.

Spin coater v1: common questions

What microcontroller does the Spin coater v1 use?

The Spin coater v1 is built around the Pico, from the RP2040/RP2350 family.

How big is the Spin coater v1 PCB?

The Spin coater v1 measures 102 × 76 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spin coater v1?

46 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 Spin coater v1 design files?

From the BirdbrainEngineer/Spin-coater-v1 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 Spin coater v1 design in my own project?

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

Can I test firmware for the Spin coater v1 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.