# BU40N Reference Design

## Introduction

In order to develop the SW for Texas Instruments TPIC2050 and test a good bit of the system, the BU40N blu-ray module was chosen for early development. Although available online, this module may not be available for long which is what disqualifies it from general use. Removing the MT1950 chip allows access to a lot of the pins of interest. Powering it is also relatively simple as it should only need 5V.

<figure><img src="/files/jGscptikMuyZzCSu93zG" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.hackerfab.org/home/fab-toolkit/patterning/blu-ray-lithography/lithography-spinner-v1/hardware/bu40n-reference-design.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.