Imported from GitHub: chof747/filament-scale-pcb · commit 9b9af0f · license CC0-1.0

Description

A small board for my samla-filament-scale-box

README

Samla Filamentalist Electronics

Idea

This is the electronics part of the filamentalist samla box which consists of:

1. The scale breakout for each Filamentalist station that contains:

• A header to read from a load cell
• An HX711 ADC controller and circutry to read the load cell
• A peripheral connector to connect to the led and the button on the outside of the box of the filamentalist station
• An IDC header to connect to the central mcu unit

2. An MCU Breakout

A board that bears the MCU and brain of the Filamentalist Box it has

• IDC receiving headers for each scale
• A header to connect to an SHT40X breakout for environmental control
• A 0.9" OLED
• A reset and a mod button to controll the oled

Components

• Arduino Nano as the MCU

• 0.9" OLED

• 2x SMD Push Buttons

• 3 IDC headers

• 1 JST XH 2.54mm header (environmental sensor)

• HX711 ADC

• Screw terminal for Load cell connections

• IDC Header to MCU

• Peripheral JST xh 2.54mm for peripherals

Revision History

V1.0 - Send to production 26.07.2025 Breakout Board V1.1 - separated clock lines for the three scales