In-line Wattage Meter

An in-line wattage meter is used to detect the wattage of all devices on a connected circuit, ideally from a generator.

Supplies

Arduino Nano - https://www.amazon.com/dp/B0D5LYFRQP

OLED Display - https://www.amazon.com/dp/B00O2KDQBE

Voltage Sensor Module - https://www.amazon.com/dp/B082FL9V9W

Current Sensor Module - https://www.amazon.com/dp/B0CKT7LWQG

Standard Breadboard, Terminal Block, 14AWG connected plug, Jumper Wires, and other tools needed to do circuit work

3D Printer for enclosure

Step 1: Breadboard

Place the voltage sensor, current sensor, screen, and Arduino on the breadboard. Make sure they are separated for room for the jumper cables

Step 2: Current Sensor

Connect the current sensor's OUT to A1 on the Arduino, 5V to the 5V rail, and GND to the GND rail

Step 3: Voltage Sensor

Connect the voltage sensor's OUT to A0 on the Arduino, 5V to the 5V rail, and GND to the GND rail

Step 4: OLED Screen

Connect the screens SDA to A4 on the Arduino, SCL to A5, 5V to the 5V rail, and GND to the GND rail

Step 5: Arduino

Connect 2 GND to the GND rail, and 5V to the 5V rail

Step 6: Terminal Block

Strip the plug cable to unveil the 3 wires. Connect the live wire to 1 side of the terminal block, and the neutral to a different block. Then, 2 jumper wires from the live to the L of the voltage sensor and 1 port of the current sensor are connected from the other side of the terminal block. Then connect the neutral from the other side to the N of the voltage sensor

Step 7:

Connect Arduino Nano to a PC and upload this code