https://github.com/mplogas/smartmass

Making every Gram count!
https://github.com/mplogas/smartmass

arduino esp32 esp8266 hx711 iot load-cell mqtt oled rfid-rc522 smartmass ssd1306

Last synced: 3 months ago
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Making every Gram count!

• Host: GitHub
• URL: https://github.com/mplogas/smartmass
• Owner: mplogas
• License: mit
• Created: 2023-09-24T18:36:37.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-05-08T18:24:07.000Z (9 months ago)
• Last Synced: 2024-10-11T14:08:35.864Z (4 months ago)
• Topics: arduino, esp32, esp8266, hx711, iot, load-cell, mqtt, oled, rfid-rc522, smartmass, ssd1306
• Language: C++
• Homepage:
• Size: 79.1 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# SmartMass

## Make every gram count!

### A smart weighing solution for almost anything, but FDM filament spools in particular. 

*pre-release quick project overview*

#### Motivation

The almighty YT algorithm suggested a 3D filament weighing solution to me recently, and as I have quite a few "almost empty" filament spools laying around I reached out to the maker. Unfortunately, no part of the suggested solution was open source so I decided to start my own open source solution. From a simple local solution with a tiny OLED display, the scope quickly escalated with (useful?) features such as MQTT read/write or RFID read/write. The planned feature list can be found on the projects page. 

As of now, the SmartMass device connects to an MQTT broker via WiFi and posts events to the ```smartmass/``` topic. The scale can be configured, calibrated and tared via MQTT using the documented payload in the `./payload` folder. It also supports reading (and writing) filament spool metadata on Mifare 1K S50 tags (they're available as stickers!) with an RFID-RC522 module.

#### BOM (bill of materials)

- a 2kg / 3kg load cell

- an HX711 signal ampifier

- an 0.96" 128x64 OLED display

- an RFID-RC522 module

- an ESP32-WROOM / ESP8266

- PLA / PETG / ... to print the models

#### Getting started

**Broker**

1. Set up an MQTT broker (mosquitto, emqx, hive, ...) and create a user for the device

**Hardware**

*TODO* 

**Code:**

1. Open the project with platformio, I'm using the platformio plugin in VSCode.

2. copy ```configuration.h.template``` to ```configuration.h``` and fill in WiFi, MQTT and PIN information 

    1. *TODO: add detailed guide for options*

3. build and upload the code