Front panel motor eval

birdybro·FPGA_Amp·hardware/kicad/front_panel_motor_eval_rev_a/front_panel_motor_eval.kicad_pcb

Front panel motor eval PCB layout, top view — open source board by birdybro

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About the Front panel motor eval PCB

Front panel motor eval is an open source PCB design by birdybro, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 80 × 48 mm, with 36 components from 25 distinct parts.

Other key parts include the DRV8874PWPR. By type, the board carries 19 resistors, 10 capacitors, 4 connectors, 1 IC, 1 fuse and 1 diode.

It belongs with the audio and test & measurement designs in this gallery.

From the project

FPGA based audiophile phono preamp and amp integrated unit idea. WIP

This is the first physical KiCad design derived from the product hardware specification. It isolates the electrically noisy and mechanically uncertain motor-volume subsystem so it can be measured before committing it to the large LCD/MCU front-panel board.

Open frontpanelmotoreval.kicadpro in KiCad 10. The checked board was generated and verified with KiCad 10.0.5. KiCad does not live-reload files changed by the generator, so close and reopen the schematic/PCB editor after an external regeneration. Do not hand-edit generated connectivity without also updating generate.py.

Main components on the Front panel motor eval

Front panel motor eval bill of materials (BOM)

36 components, 25 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	DRV8874PWPR	HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.46x2.31mm	U1
1	MOTOR_5V_INPUT	JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical	J1
1	FP_MCU_CONTROL	PinHeader_2x06_P2.54mm_Vertical	J2
1	PRM16_MOTOR	JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical	J3
1	PRM16_POSITION	JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical	J4
1	500MA_PTC 500mA_PTC	Fuse_1206_3216Metric	F1
1	SMBJ6.0A	D_SMB	D1
1	100NF_50V_X7R 100nF_50V_X7R	C_0805_2012Metric	C1
1	10UF_16V_X7R 10uF_16V_X7R	C_1210_3225Metric	C2
1	220UF_10V_LOW_ESR 220uF_10V_LOW_ESR	C_Elec_6.3x5.8	C3
1	100NF_16V_X7R 100nF_16V_X7R	C_0805_2012Metric	C4
1	22NF_16V_X7R 22nF_16V_X7R	C_0805_2012Metric	C5
2	10NF_X7R 10nF_X7R	C_0805_2012Metric	C6, C7
2	10NF_C0G 10nF_C0G	C_0805_2012Metric	C8, C9
1	DNP_SNUBBER	C_0805_2012Metric	C10
3	33R	R_0805_2012Metric	R1, R3, R5
3	100K 100k	R_0805_2012Metric	R2, R4, R6
1	10K 10k	R_0805_2012Metric	R7
1	14.7k_1%	R_0805_2012Metric	R8
3	10k_1%	R_0805_2012Metric	R9, R10, R18

Show 5 more

Qty	Part	Footprint	Refs
3	1k	R_0805_2012Metric	R11, R15, R16
1	62k_1%	R_0805_2012Metric	R12
2	100R	R_0805_2012Metric	R13, R14
1	22k_1%	R_0805_2012Metric	R17
1	DNP_SNUBBER	R_0805_2012Metric	R19

Front panel motor eval design files

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

Front panel motor eval: common questions

How big is the Front panel motor eval PCB?

The Front panel motor eval measures 80 × 48 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Front panel motor eval?

36 components, from 25 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 Front panel motor eval design files?

From the birdybro/FPGA_Amp 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 Front panel motor eval design in my own project?

Yes, under the terms of its GPL-3.0 license, which birdybro chose for the repository.

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