HardLabs

LegEncoderBoard

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

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

About the LegEncoderBoard PCB

LegEncoderBoard is an open source PCB design by 01binary, published on GitHub. It is a 2-layer board measuring 66 × 66 mm, with 39 components from 15 distinct parts.

Other key parts include the AS5047P-ATST and SN74LVC3G17DCTR. By type, the board carries 17 resistors, 9 capacitors, 3 transistors, 3 diodes and 2 ICs.

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 AS5047P hall-effect on-axis encoder with 14-bit resolution on robot wheel hubs.

For 3.3V operation VDD and VDD3V3 are bridged and decoupled to GND via 100nF decoupling capacitor and 10uF bypass capacitor.

Another 1uF bulk capacitor is on VDD3V3 line for additional stabilization.

The AS5047P documentation specifies that A and B pins output a quadrature signal, and an additional I pin outputs index (one pulse per complete revolution). In practice, the index is HIGH whenever the encoder is approximately near its zero position.

LegEncoderBoard, from the project README
From the project README

Main components on the LegEncoderBoard

AS5047P-ATSTSN74LVC3G17DCTR

LegEncoderBoard bill of materials (BOM)

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

QtyPartRefs
1
AS5047P-ATST
U1
1
SN74LVC3G17DCTR
U2
3
MMBT3904
Q1, Q2, Q3
5
BAT54
CR1, CR2, CR3, CR4, CR5
1
C84263
REDLED
D1
2
C6067133
BLUELED
D2, D3
2
100NF
100nF
C1, C4
3
10NF
10nF
C2, C8, C9
4
1UF
1uF
C3, C5, C6, C7
5
100K
R1, R5, R10, R16, R17
3
47K
R2, R7, R11
3
470K
R3, R8, R12
1
1K
R4
2
150R
R6, R9
3
22R
R13, R14, R15

LegEncoderBoard design files

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

LegEncoderBoard: common questions

How big is the LegEncoderBoard PCB?

The LegEncoderBoard measures 66 × 66 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LegEncoderBoard?

39 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 LegEncoderBoard 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 LegEncoderBoard 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.

More boards in str1ker

Similar boards