M5Stack Grader As Open Source Agri Tech Project

AMF Grader - Open Source M5Stack Weight Sorter for Fruits and Vegitables.

Summary

AMF (Aizu Matsubara Farm) Grader is an open-source fruit sorting machine designed specifically for persimmons but adaptable for any fruits,vegitables and so on. under 1kg. Built with M5Stack and a load cell, it provides accurate weight measurements and audio-visual feedback.

Movie

https://youtube.com/shorts/yU6AxOJzVg4?feature=share

Key Features

• Weight measurement accuracy: 1g
• Visual size display with color coding
• Voice guidance for size categories
• Cost-effective (approximately $60 USD)
• Compact design
• Multiple units can work in parallel

Components Required

• M5Stack Basic v2.7
• M5Stack Weight Unit (HX711)
• 1kg Load Cell ex.[https://www.aliexpress.com/item/1005006827930173.html?spm=a2g0o.order_list.order_list_main.50.3a621802tR95vD]
• microSD card
• M3x5mm pan head screws (x8)
• M4x20mm flat head screws (for load cell mounting) (x4)

Assembly Instructions

1. Print all parts
2. Mount the load cell using M4 screws
3. Connect the HX711 amplifier
4. Attach M5Stack using M3 screws
5. Wire components according to the diagram

Source Code

Source code is available on GitHub:link [https://github.com/23style/M5_Grader]

Credits

Developed by Aizu Matsubara Farm (Japan) Original design for sorting persimmons (Mishirazu Kaki)

Notes

• Calibration weight (100g) required for setup
• Designed for fruits up to 1kg
• Can be modified for different weight ranges
• STL files include base, top cover, and measurement plate

OpenSource #M5Stack #Agriculture #FruitSorter #3DPrinting #openAgriTech

Print Settings

Printer Brand:

Prusa

Printer: 

i3 MK4

**Rafts:**

Yes

Supports: 

Yes

**Resolution:**

.25

Infill: 

15%