Projects
Build something with our boards
Complete guides with parts list, wiring, step-by-step build and Arduino code. Every project uses ElectroTrical boards, alone or combined.
Indoor Air Quality Monitor
True CO₂, VOC and NOx readings for your office, bedroom or classroom.
Solar Weather Station with Lightning Alerts
Temperature, humidity, pressure, UV index and storm distance — powered by the sun.
Smart Plant Monitor
Soil moisture, light and air for one plant — on a rechargeable battery.
Presence-Based Room Lighting
Lights that stay on while you sit still — and only when the room is dark.
Digital Kitchen & Luggage Scale
A 24-bit scale accurate to the gram, with tare and calibration.
Home Energy Monitor
See how many amps and watts your home or AC unit uses — without touching live wires.
Portable Thermal Camera
A 32×24 thermal image streamed to your phone over Wi-Fi.
BBQ & Oven Thermometer
A thermocouple probe for the meat and an infrared sensor for the grill surface.
Altitude & Orientation Logger
A flight logger for drones, rockets and RC planes — attitude, heading and altitude at 50 Hz.
Solar Battery & Power Logger
Know exactly how much power your solar project makes, stores and uses.
All guides use an ESP32-S3 DevKitC-1 as the controller (not sold by ElectroTrical). The boards also work with Arduino, Raspberry Pi and Raspberry Pi Pico.