USB Tester : 4 Steps (with Pictures) - Instructables
Simple USB Power Tester based on ATtiny45/85 and INA 219. You can switch between different screens by pressing the SET button. | Usb, Arduino projects, Arduino
DIY Air Quality Monitor - PM2.5, CO2, VOC, Ozone, Temp & Hum Arduino Meter
USB Power Testing With an Arduino Controlled Dummy Load Project
Make Your Own Power Meter/Logger : 5 Steps (with Pictures) - Instructables