Things used in this project

Hardware components:
Core
Particle Spark Core
×1
SeeedStudio Grove Rotary Encoder
×1
Adafruit industries ada161 image 75px
Photo resistor
×1
Adafruit industries ada258 image 75px
Li-Ion Battery 1000mAh
×1
Adafruit IR Break Beam Sensor - 3mm LEDs
×1
SparkFun Load Cell Amplifier - HX711
×1
SparkFun Load Cell - 10kg, Straight Bar (TAL220)
×1
SPDT Lever Switch
×1
Single Cell Lithium Ion Battery Charger (MCP73831)
×1
Software apps and online services:
Ha 2up iot
Amazon Web Services AWS IoT
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IFTTT Maker service
Amazon Web Services Amazon DRS
Hand tools and fabrication machines:
3drag
3D Printer (generic)

Custom parts and enclosures

Schematics

Smart Drawer Schematic
Full schematic professionally hand drawn in TylerEDA
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Code

Particle Core Firmware
firmware for the Particle Core
DRS Webserver
Code for registering with Dash Replenishment Service.

Credits

Pyrowh9ohxhro6x86r8e
Tyler Spadgenske

Aspiring entrepreneur teaching myself engineering while sharing my designs and ideas along the way.

Thanks to Ravi Butani.

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