Filament Scale

Update May 4, 2019: Change description from 0.96" to 1.3" OLED

This device determines the amount of remaining filament for a 3D printer.

It is inspired by the thingiverse make: https://www.thingiverse.com/thing:2798423
3D Printer Filament Scale, by Steven Westerfeld, aka Kisssys.
The mounting mechanism and load cell are unchanged but everything else is different.

**The hardware required is:**
* 5kg load cell with HX711 interface
* 1.3" IIC Oled display
* WeMos D1 Mini tripler base, standard size, with connector headers
* One-Button Shield for WeMos D1 Mini
* Dupont connector jumper wires
* 608 bearings (four are required)
* 8mm or 5/16" steel rod

Follow manufacturer instructions for connecting HX711 to load cell.
Soldering is required for Tripler Base and HX711

**Connections:**
* The Oled and Load cell can be connected to either 3.3 or 5v
* Oled SCl connects to D1
* Oled SDA connects to D2
* HX711 SDA connects to D5
* HX711 SCL c