Wheel-Encoder
About the Wheel-Encoder PCB
Wheel-Encoder is an open source PCB design by manyetox, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 20 × 16.8 mm, with 5 components from 4 distinct parts.
Other key parts include the MA730. By type, the board carries 2 connectors, 2 capacitors and 1 IC.
It belongs with the sensors designs in this gallery.
From the project
Source-available modular mobile carrier for autonomous photonics experiments using ESP32 control, optical flow, IMU sensing and magnetic wheel encoding.
Platform: V2 Board revision: ENC-R1.0 Status: validated; current PCB: 2 layers, approximately 20 × 16.8 mm
ENC-R1.0 measures wheel/shaft angle using the MA730 magnetic angle sensor. It replaces earlier exploration of sparse Hall-sensor edge counting with a more direct angle-sensing approach.
- SPI: MOSI, MISO, SCLK, CS - 3.3 V and GND - optional A/B/Z outputs - PWM output - MGL/MGH magnetic-field diagnostic outputs
Main components on the Wheel-Encoder
Wheel-Encoder bill of materials (BOM)
5 components, 4 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MA730 | QFN-16-1EP_3x3mm_P0.5mm_EP1.75x1.75mm | U1 |
| 2 | Conn_01x07_Socket | 7 pin smd conn 2.54 | J1, J2 |
| 1 | 1u | C_0603_1608Metric | C1 |
| 1 | 100n | C_0603_1608Metric | C2 |
Wheel-Encoder design files
The KiCad project lives in the manyetox/Autonomous-Photonics-Carrier repository on GitHub; these links point at the commit this page was built from.
Wheel-Encoder: common questions
How big is the Wheel-Encoder PCB?
The Wheel-Encoder measures 20 × 16.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Wheel-Encoder?
5 components, from 4 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 Wheel-Encoder design files?
From the manyetox/Autonomous-Photonics-Carrier 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 Wheel-Encoder design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
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