2 layers63 × 41 mm Encoder SPI Panel, the printed circuit board in 3D

Encoder SPI Panel

Small (21x17mm) board for the SC60228 magnetic absolute angle sensor.

Size: 63 × 41 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 105
Nets: 61
Pads: 226
Tracks, vias: 363, 48
Pours: 10
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 22 Oct 2021
Updated: 4 Jan 2026

Overview

Encoder SPI Panel is an open-source printed circuit board by runger1101001, from the runger1101001/Magnetic_Encoders repository on GitHub. It is a 2-layer board of 63 × 41 mm with 105 parts on 61 nets, routed with 363 tracks and 48 vias.

It is built around the AEAT-8800-Q24TR.

Main components

AEAT-8800-Q24TR
QFN-24(5x5)-40℃~+125℃ 16bit 20mA 3V~3.6V、4.5V~5.5V 4096 45mT 8 Incremental encoder output、Magnetic field too high/low warning、Programmable hysteresis PWM、SSI QFN-24(5x5) Magnetic Angle Sensors ROHSBroadcom LimitedMagnetic Angle Sensors

README

Encoder_SPI_SC60228_big/README.md

SC60228 magnetic angle sensor

Small (21x17mm) board for the SC60228 magnetic absolute angle sensor.

For use in motor control or robotics applications, the sensor measures the orientation (angle in the plane) of a nearby diametrically magnetized magnet.

That sounds more complicated than using it really is, so lets describe it another way:

attach the magnet to the axis of something that rotates
put the sensor near it
read angles with your Arduino

Back of board	Front of board
with SH 1.0 connector	with sensor

Features

3V to 5V operation
12 bit accuracy, 4096 positions per revolution
SPI interface up to 10MHz
power indication LED (green, dim)

Datasheet of the sensor: https://semiment.com/wp-content/uploads/2021/04/SC60228_EN-VA1.0.pdf

Getting one

You may be able to buy some here:

Or you could make one - it is open source, you will find gerber files and BOM in the repo, and design files for KiCad 6.

Usage

The sensor has to be precisely positioned near the magnet. The magnet should be precisely on-axis and in-plane (no wobble!). The sensor should be mounted with an air-gap of about 0.5mm to the magnet.

Taking the time to mount the magnet and sensor board carefully will improve the accuracy and smoothness of your readings.

The sensor has an SPI interface:

The SPI interface is available on a JST-SH 6-pin socket. Pre-made cables are available cheaply on AliExpress and other sources.

You may connect VCC to either 3.3V or 5V.

Connect the other lines (MOSI, MISO, CLK and CS) to the respective counterparts on your MCU board.

Note: The sensor board does not pull the CS line up.

Communications

SPI interface:

SPI Mode 1
MSB first
max 10MHz SPI clock

See datasheet for details, or use an existing software driver.

:warning: Note: cable length, shielding (or lack thereof) and environmental noise may limit performance to significantly less than the 10MHz maximum.

Software

The sensor can be used with any appropriate SPI driver.

The author uses it with Arduino-compatible MCU boards and the SimpleFOC library.

A driver for the sensor for Arduino and SimpleFOC can be found here: SimpleFOC drivers library

Physical dimensions

v1.0: 21 x 17 x 4mm (1.6mm PCB)

Cables

Pre-made JST SH 1.0 cables are available. When buying cables with two plugs, choose the type that is called "reverse connection" - where the pins on both ends of the cable have the same order.

Some links to compatible cables / breakout boards:

Project files

Show this board on your page

https://pcbkit.io/boards/runger1101001/Magnetic_Encoders/Encoder_SPI_Panel/Encoder_SPI_Panel.kicad_pcb

The board's own page, for a message or a post.

Source

Repository: runger1101001/Magnetic_Encoders
Board file: Encoder_SPI_Panel/Encoder_SPI_Panel.kicad_pcb
Commit: 9b11137
Licence: Not stated

Parts

105

Qty	Value	Footprint	References
16	Mousebite	runger:Mousebite	B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B1-H, B4-H, B4-H, B4-H, B4-H
6	MountingHole_Pad	MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad	B2-H1, B2-H2, B3-H1, B3-H2, B4-H1, B4-H2
4	100nF 6.3V	Capacitor_SMD:C_0402_1005Metric	B1-C1, B2-C1, B2-C2, B3-C2
4	1k	Resistor_SMD:R_0402_1005Metric	B1-R1, B2-R1, B3-R1, B4-R1
4	MountingHole_Pad	runger:MountingHole_Pad_1.75mm_2.75mm	B1-H1, B1-H1, B1-H2, B1-H2
4	green	LED_SMD:LED_0402_1005Metric	B1-D1, B2-D1, B3-D1, B4-D1
3	Conn_01x06_MountingPin	Connector_JST:JST_SH_SM06B-SRSS-TB_1x06-1MP_P1.00mm_Horizontal	B1-J1, B2-J1, B3-J1
2	Castellations_ABI	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	B2-J2, B4-J2
2	LOGO	runger:Robo_logo2	B1-G*, B4-G*
2	LOGO	Symbol:Robo_logo	B2-G*, B3-G*
1	10uF 6.3V	Capacitor_SMD:C_0402_1005Metric	B1-C2
1	1uF 6.3V	Capacitor_SMD:C_0402_1005Metric	B4-C2
1	A1333	Package_SO:TSSOP-14_4.4x5mm_P0.65mm	B2-U1
1	AEAT_8800_Q24	Package_DFN_QFN:QFN-24-1EP_5x5mm_P0.65mm_EP3.2x3.2mm	B1-U1
1	Castellations_ABI	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	B3-J2
1	Castellations_SPI	runger:Castellations_x6_1.5p_1hole	B1-J2
1	Conn_01x06_MountingPin	Connector_JST:JST_SH_SM08B-SRSS-TB_1x08-1MP_P1.00mm_Horizontal	B4-J1
1	MA730	Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.75x1.75mm	B4-U1
1	TLE5012B	runger:Infineon_PG-DSO-8	B3-U1

The 56 most common of 105 parts.

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Questions

How big is the Encoder SPI Panel PCB?

It measures 63 × 41 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Encoder SPI Panel use?

105 parts, built around the AEAT-8800-Q24TR. 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 Encoder SPI Panel KiCad files?

From the runger1101001/Magnetic_Encoders repository on GitHub, at the commit this page was made from: the board is Encoder_SPI_Panel/Encoder_SPI_Panel.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Encoder SPI Panel design in my own project?

Its repository states no licence, so its author keeps all rights: ask runger1101001 before reusing the design.