# charybdis-pmw-sensor

**Repository Path**: leonbdong/charybdis-pmw-sensor

## Basic Information

- **Project Name**: charybdis-pmw-sensor
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-09-14
- **Last Updated**: 2025-09-14

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# PMW3360 sensor PCB

A PCB for the PMW3360 sensor. Designed for the Charybdis keyboard, can be used in other projects.

![](pics/sensor2.jpg)


# Important notice

**There are 2 versions of the PCB available in the release section:**
- DIY, meant for hand assembly
- PCBA, meant for factory assembly

If you're going to assemble the components yourself, **make sure to use the DIY version**.

# Features

- Uses a 2.54mm spaced tht connector
- components chosen to be easy to handsolder
- M3 screw holes
- potato 

# BOM

This BOM is for the **DIY version**. If you're using the PCBA version, use the files from the latest PCBA release.


| Designator | Name              | Amount |
| ---------- | ----------------- | ------ |
| C1         | 2.2uF             | 1      |
| C2         | 10uF              | 1      |
| C3         | 4.7uF             | 1      |
| C4, C5     | 1uF               | 2      |
| IC1*       | AP7331-20WG-7     | 1      |
| J1         | Conn_01x06_Female | 1      |
| R1, R2*    | 10k               | 2      |
| R3*        | 15k               | 1      |
| R4         | 39                | 1      |
| U1         | XC6206P332MR      | 1      |
| U2         | PMW3360DM-T2QU    | 1      |
| U4         | TXS0104EDR        | 1      |

(*) If you get a fixed 2.0V AP7331, you don't need R2 and R3. 

If you get an adjustable one, you need the resistors to set the output voltage.

All components on 1206 package.


# Schematic

![](pics/sensor.png)

# Component placement for the assembled version

![](pics/placement.PNG)


# License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.