Kevin Loeffler
Published

VoltValet

Make any EV charger smart with the AVR-IoT Cellular Mini, AWS, and machine learning!

IntermediateFull instructions provided4 hours269

Things used in this project

Hardware components

AVR IoT Mini Cellular Board
Microchip AVR IoT Mini Cellular Board
×1
Adafruit FeatherWing Proto - Prototyping Add-on For All Feather Boards
×1
Adafruit Stacking Headers for Feather
×1
Diode 1N4148
×3
Through Hole Resistor, 150 ohm
Through Hole Resistor, 150 ohm
×1
Through Hole Resistor, 680 ohm
Through Hole Resistor, 680 ohm
×1
Through Hole Resistor, 22 kohm
Through Hole Resistor, 22 kohm
×1
2 Position Wire to Board Terminal Block
×1
SAE J1772 Inlet/Socket with cable
×1
Adafruit Short Feather Male Headers - 12-pin and 16-pin Male Header Set
×1
A level 1 or level 2 EV charger
×1
Wire Marker, Tape,10 Refill Rolls
Wire Marker, Tape,10 Refill Rolls
×1

Software apps and online services

Arduino IDE
Arduino IDE
AWS SNS
Amazon Web Services AWS SNS
AWS API Gateway
Amazon Web Services AWS API Gateway
Amazon Web Services AWS Cloudformation

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Solder Wire, Lead Free
Solder Wire, Lead Free
Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires
Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires
Multitool, Screwdriver
Multitool, Screwdriver
10 Pc. Jumper Wire Kit, 5 cm Long
10 Pc. Jumper Wire Kit, 5 cm Long
Oscilloscope and probes (optional)

Story

Read more

Schematics

Car Simulator Circuit

Initial assembly of the J1772 FeatherWing that only tricks the EVSE into thinking a car is connected

Full J1772 FeatherWing

This is the complete schematic and breadboard design for the J1772 FeatherWing, including the voltage trimmer

Code

VoltValet Repository

Full code and Cloudformation document for VoltValet

Credits

Kevin Loeffler

Kevin Loeffler

3 projects • 4 followers

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