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# NanoDLP_Shield_V1.1

## Product Introduction

---
![NanoDLP_Shield](https://raw.githubusercontent.com/FYSETC/wiki.fysetc/main/docs/images/crisp/NanoDLP-Shield.jpg)

This expansion board is designed for the Raspberry Pi 3B which is used for SLA/DLP 3D printers  running NanoDLP . The board contains a 9-28V to 5V circuit that provides a maximum of 3A and other interfaces required by NanoDLP. See the instructions below.

## Features

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* 9V-28V to 5V@3A Buck Converter
* DRV8825 Stepper Driver 
* 12V Fans (cooling the Pi)
* 2X Endstops
* Controled MOS for ext LED driver 
* I2C Connector for LCD1602
* Uart Connector for Touch Screen
* Shutter support
* 5V OUT Connector for ext Board

## Application

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* For NanoDLP software on Raspberry Pi

## Specifications

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| Board Name | NanoDLP Shield |
| ---- |
| License | CPL V2 |
| Latest Version | V1.1 |
| Fixed Port | 1X 12V（Same as input） and 5V |
| Controlled Port | 1X 12V（Same as input） |
| Endstops | Z-min /Z-max |
| I2C | 1X PinHeader-4P |
| Serial port | 1X XH2.54-4P |
| Stepper driver | 1X DRV8825@2.5A max/32 microsteps max |
| Input | 9V-28V |
| Output | 5V@3A max, 9-28V@3A max |


## Interface Resources
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### Interface Layout

![NanoDLP_Shield_PIN](https://raw.githubusercontent.com/FYSETC/wiki.fysetc/main/docs/images/crisp/NanoDLP-Shield-PIN.png)

### Micro-stepping

Shorted = 1, Open = 0 .

| MS2 | MS1 | MS0 | Microsteps |
| ---- |
| 0 | 0 | 0 | Full step (2-phase excitation) with 71% current |
| 0 | 0 | 1 | 1/2 step (1-2 phase excitation) |
| 0 | 1 | 0 | 1/4 step (W1-2 phase excitation) |
| 0 | 1 | 1 | 8 microsteps/step |
| 1 | 0 | 0 | 16 microsteps/step |
| 1 | 0 | 1 | 32 microsteps/step |
| 1 | 1 | 0 | 32 microsteps/step |
| 1 | 1 | 1 | 32 microsteps/step |


## Pin Definition

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![](https://raw.githubusercontent.com/FYSETC/wiki.fysetc/main/docs/images/crisp/NanoDLP-Shield-PIN%E5%B1%80%E9%83%A8.png)

## Schematic

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![](https://raw.githubusercontent.com/FYSETC/wiki.fysetc/main/docs/images/crisp/NanoDLP-Shield%E5%8E%9F%E7%90%86%E5%9B%BE.jpg)

## Wiring Diagram

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![](https://raw.githubusercontent.com/FYSETC/wiki.fysetc/main/docs/images/crisp/NanoDLP-Shield-V1.1%E6%8E%A5%E7%BA%BF%E5%9B%BE.png)


1. 9-28V Power Input, if you need connect a fan to cooling the UVLED you can connect it here too. 
2. For UVLED Input, you can ON/OFF the UVLED by Controlling the Output.
3. HDMI to MIPI Board or other device which need 5V power.
4. With the I2C Port, you can connet a I2C 1602LCD.
5. The board support two endstops, TOP and bottom, you can also use the Photoelectric switch with all three pins.

## Shop
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* [NanoDLP Shield V1.1](https://www.aliexpress.com/store/product/NanoDLP-Shield-V1-1-Expansion-Board-With-DRV8825-Controled-MOS-For-Raspberry-Pi-3B-And-NanoDLP/3480083_32885581951.html)


## Tech Support

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Please submit any technical issue into our [forum](http://forum.fysetc.com/)