https://github.com/404background/node-red-contrib-mcu-serial

Node to use serial communication with Node-RED MCU
https://github.com/404background/node-red-contrib-mcu-serial

Last synced: 5 months ago
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Node to use serial communication with Node-RED MCU

• Host: GitHub
• URL: https://github.com/404background/node-red-contrib-mcu-serial
• Owner: 404background
• License: mit
• Created: 2024-03-20T23:32:31.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-04-11T08:00:00.000Z (about 2 years ago)
• Last Synced: 2025-12-14T00:49:13.677Z (7 months ago)
• Language: HTML
• Size: 2.9 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# node-red-contrib-mcu-serial

Node to use serial communication with Node-RED MCU

## Overview

With this node, you can use Serial communication of MCU.  

There are two nodes, Serial in and Serial out.  

![palette](./image/palette.png)

## How to use

0. Build the environment for the Node-RED MCU plugin  

1. Install this node  

Add from the "Manage palette" in Node-RED or execute the following command.  

```

cd   

npm install   

```

2. Add the path of manifest.json to node_types.json  

(This step may not be necessary because moddable_manifest has been added to the HTML file.  

If you have any problems, please report them to issue)  

node_types.json is located in the directory:  

".node-red/node_modules/@ralphwetzel/node-red-mcu-plugin/node-red-mcu"  

On Raspberry Pi:  

![node_types.json](./image/node_types.json.png)  

3. Try to build with the Node-RED MCU plugin.

## Test case

On Raspberry Pi 400, Windows  

- Moddable Two & ESP32

- TX: 17

- RX: 16

- Port: 2

- Baud: 115200

 and  

- TX: 32

- RX: 33

- Port: 1

- Baud: 115200

![node_edit](./image/node_edit.png)  

Wiring:  

![moddable_two](./image/sample_moddable_two.jpg)  

![esp32](./image/sample_esp32.jpg)  

Sample flows are in the examples folder.  

Flow on MCU:  

![flow_serial](./image/flow_serial.png)  

Flow on Raspberry Pi:  

![flow_serial_pc](./image/flow_serial_pc.png)  

Support for multiple node and port.  

![flow_serial_multiple_port](./image/flow_serial_multiple_port.jpg)  

## Acknowledgements

Thanks to [NW-Lab](https://github.com/NW-Lab) and [mshioji](https://github.com/mshioji) for testing use of Serial with function node.  

[@NWLab](https://qiita.com/NWLab):「Node-RED MCUでFunction Nodeを使ったSerial通信をやってみる」  

  

[@mshioji](https://qiita.com/mshioji):"Try Serial Communication with Function Node in Node-RED MCU"  

  

In Japanese:「Node-RED MCU EditionでSerialを使う」  

  

## Other Links

@ralphwetzel/node-red-mcu-plugin  

  

@Moddable-OpenSource/moddable  

  

Node-RED User Group Japan:「ノードの開発」  

  

[@kazuhitoyokoi](https://qiita.com/kazuhitoyokoi):「Node-REDのノードをつくる手順」  

  

my article:Creating a servo node that imports an external class  

「Node-RED MCU用のノードを作成してみる　その２（Servoノード）」