HardLabs

ArmEncoderBoard

01binary·str1ker·boards/ArmEncoderBoard/ArmEncoderBoard.kicad_pcb

ArmEncoderBoard PCB layout, top view — open source board by 01binary

About the ArmEncoderBoard PCB

ArmEncoderBoard is an open source PCB design by 01binary, published on GitHub. It is a 2-layer board measuring 34 × 34 mm, with 29 components from 15 distinct parts.

Other key parts include the SN74LVC2G17DBVR and AS5045B. By type, the board carries 13 resistors, 5 capacitors, 4 diodes, 2 ICs and 2 transistors.

It belongs with the robotics & motion designs in this gallery.

From the project

A human-scale mech integrated with Robot Operating System

A custom board that simplifies mounting AS5045 hall-effect on-axis encoder with 12-bit resolution onto robot joints.

For 3.3V operation VDD5V and VDD3V3 are bridged and routed to VIN (3.3V). A single 100nF decoupling capacitor is placed at the bridge (close to the IC) to GND.

The following is documented in AS5045 specifications:

+ Synchronous Serial Interface (SSI) with one-way communication, MOSI line not used + Compatible with SPI mode 1 (CPOL = 0, CPHA = 1) + Transfer begins when CSn is LOW + MSB-first, clocked data output

ArmEncoderBoard, from the project README
From the project README

Main components on the ArmEncoderBoard

SN74LVC2G17DBVRAS5045B

ArmEncoderBoard bill of materials (BOM)

29 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SN74LVC2G17DBVR
U1
1
AS5045B
U2
2
SS8050
Q1, Q2
3
BAT54
CR1, CR2, CR3
1
C6067133
LEDBLUE
D1
3
C84263
LEDRED
D2, D3, D4
2
100NF
100nF
C1, C2
2
1UF
1uF
C3, C4
1
10NF
10nF
C5
2
4.7K
R1, R2
1
150R
R3
3
1K
R4, R12, R13
2
47K
R5, R8
3
100K
R6, R7, R9
2
10K
R10, R11

ArmEncoderBoard design files

The KiCad project lives in the 01binary/str1ker repository on GitHub; these links point at the commit this page was built from.

ArmEncoderBoard: common questions

How big is the ArmEncoderBoard PCB?

The ArmEncoderBoard measures 34 × 34 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ArmEncoderBoard?

29 components, from 15 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 ArmEncoderBoard design files?

From the 01binary/str1ker 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 ArmEncoderBoard design in my own project?

The repository has no license, so all rights stay with 01binary. Use it as a reference, and ask the author before reusing the design.

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