OpenPowder An Arduino based high precision powder dispenser to reaload ammunitions

Update 01/09/2020 : STRONK ADVICE : You should use the "POTS VERSION" which removes the keypad , and uses 4 potentiometers instead to setup the powder dispenser. Potentiometers are meant to be wired in A0 A1 A2 A3 (please read the code). I think I'm going to clean the code a little bit to improve performance and eventually test if I can get rid of the nano/mega and get a due instead...

Disclaimer - Use at your own risk !!

Important notice : you should print the SCREW + SCREW CHASSIS in ESD material (+grounding). As they are in friction , they 'll generate static electricity and a spark might appear. You should print the screw in ESD TPU

Demo https://youtu.be/NpUA0E3mnnk

BOM https://github.com/guiguijke/OpenPowder/blob/master/OPEN%20POWDER%20BILL%20OF%20MATERIAL.xlsx

Code & Electronic Drawings https://github.com/guiguijke/OpenPowder ++Small advice : you can use USB cable (the one you use to make a USB cable longer) to connect motor to stepper and HX711 to Arduino & power.

How to contact me ? https://discord.gg/ZnFjnvE

Are you happy with it ? Consider a donation =) https://paypal.me/pubgfb BTC : bc1qm9ta0rugnuaxzy3thjuaqsaknjgscs7sw29ut3