2 layers65 × 41.5 mm Pi HAT, the printed circuit board in 3D

Pi HAT

KiCAD files of a RPi HAT built for weight data acquistion and actuation of the specimen lift platform.

Size: 65 × 41.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 92
Nets: 94
Pads: 317
Tracks, vias: 742, 157
Pours: 4
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 23 Oct 2022
Updated: 1 Jul 2024

Overview

Pi HAT is an open-source printed circuit board by Montso, from the Montso/Pi-HAT repository on GitHub. It is a 2-layer board of 65 × 41.5 mm with 92 parts on 94 nets, routed with 742 tracks and 157 vias.

It is built around the 74LVC125APW,118-JSM, ADC108S022CIMTX and HX711, with the AD7730BNZ and S8550 among its other parts. Its parts include 23 capacitors, 20 resistors, 7 connectors, 6 ICs and 5 diodes.

Main components

README

README.md

Pi-HAT

Parts

Qty	Value	Footprint	References
8	100n	Capacitor_SMD:C_0402_1005Metric	C6, C10, C12, C13, C19, C20, C21, C24
6	100n	Capacitor_SMD:C_0603_1608Metric	C2, C14, C15, C16, C17, C23
6	1k	Resistor_SMD:R_0402_1005Metric	R1, R3, R4, R9, R16, R17
5	Jumper_3_Open	Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm	JP1, JP2, JP3, JP4, JP7
4	10u	Capacitor_SMD:C_0603_1608Metric	C1, C3, C18, C22
4	1n	Capacitor_SMD:C_0402_1005Metric	C4, C5, C7, C9
4	33k	Resistor_SMD:R_0402_1005Metric	R7, R11, R14, R15
4	MountingHole	lib:MountingHole_2.7mm_M2.5_uHAT_RPi	H1, H2, H3, H4
4	TestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP5, TP6, TP7, TP8
2	100R	Resistor_SMD:R_0402_1005Metric	R20, R21
2	1N5819	Diode_SMD:D_SOD-123	D1, D2
2	68k	Resistor_SMD:R_0402_1005Metric	R5, R10
2	Jumper_2_Small_Bridged	UCT:Jumper_Open_wide	JP14, JP15
2	Jumper_NO_Small	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm	JP6, JP8
2	Red_LED	Diode_SMD:D_0603_1608Metric	D4, D5
2	S8050_SMD	Package_TO_SOT_SMD:SOT-23	Q2, Q3
2	S8550	Package_TO_SOT_SMD:SOT-23	Q1, Q4
2	SANYOU_SRD_Form_C	Relay_THT:Relay_SPDT_SANYOU_SRD_Series_Form_C	K1, K2
2	Screw_Terminal_01x03	TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-3.5-H_1x03_P3.50mm_Horizontal	J5, J6
1	100k	Resistor_SMD:R_0402_1005Metric	R6
1	10k	Resistor_SMD:R_0402_1005Metric	R22
1	12k	Resistor_SMD:R_0402_1005Metric	R19
1	1u	Capacitor_SMD:C_0402_1005Metric	C11
1	220R	Resistor_SMD:R_0402_1005Metric	R8
1	27k	Resistor_SMD:R_0402_1005Metric	R18
1	3.3uH	Inductor_SMD:L_0603_1608Metric	L1
1	4k7	Resistor_SMD:R_0402_1005Metric	R2
1	74LVC125APW,118	74LVC125APW_118:SOP65P640X110-14N	U1
1	ACS712x	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U4
1	AD7730	Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm	IC1
1	ADC108S022CIMTX	ADC108S022CIMTX_NOPB:SOP65P640X120-16N	U5
1	Barrel_Jack	UCT:Barrel_Jack_2A_C84007	J4
1	Conn_01x02_Male	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J11
1	Conn_01x03_Male	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J9
1	EXCITATION	Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_RoundedPad1.0x1.5mm	JP12
1	GPIO_CONNECTOR	lib:PinSocket_2x20_P2.54mm_Vertical_Centered_Anchor	J7
1	HX711	Package_SO:SOP-16_3.9x9.9mm_P1.27mm	U6
1	Jumper_2_Small_Bridged	Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm	JP13
1	Jumper_NC_Small	Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm	JP5
1	LED_Small	Diode_SMD:D_0603_1608Metric	D3
1	LOGO	LOGO	G***
1	RATE	Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm	JP10
1	S+	Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_RoundedPad1.0x1.5mm	JP9
1	S-	Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_RoundedPad1.0x1.5mm	JP11
1	Screw_Terminal_01x04	TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-4-3.5-H_1x04_P3.50mm_Horizontal	J1
1	TMP23X	TMP235A2DCKR:SOT65P210X110-5N	U3

Questions

How big is the Pi HAT PCB?

It measures 65 × 41.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pi HAT use?

92 parts, built around the 74LVC125APW,118-JSM, ADC108S022CIMTX, HX711 and AD7730BNZ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Pi HAT KiCad files?

From the Montso/Pi-HAT repository on GitHub, at the commit this page was made from: the board is Pi HAT.kicad_pcb and its schematic Pi HAT.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Pi HAT design in my own project?

Its repository states no licence, so its author keeps all rights: ask Montso before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/montso-pi-hat" title="Pi HAT in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/montso-pi-hat.jpg" alt="Pi HAT" width="1200" height="900">

A picture that opens the board, for a README

[![Pi HAT](https://pcbkit.io/embed/boards/montso-pi-hat.jpg?size=s)](https://pcbkit.io/boards/montso-pi-hat)

Source

Repository: Montso/Pi-HAT
Board file: Pi HAT.kicad_pcb
Commit: 0387d91
Licence: Not stated

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