Coin batteries are great for powering paper circuits, but they can be costly — both in terms of expense and environmental impact.
USB power is a great substitute for coin batteries if you need more power, want to leave a project turned on, or don’t want to keep switching out batteries. It’s also useful for creating collaborative projects that combine many small circuits into a larger display.
![sunflower paper circuit](https://chibitronics.com/wp-content/uploads/2022/03/IMG_9552-1024x1024.jpg)
![USB powered paper circuit](https://chibitronics.com/wp-content/uploads/2022/03/IMG_9553-1024x1024.jpg)
In this tutorial, designed for people with advanced electronics skills, we will show you how to safely substitute USB power for coin batteries, to help you power your circuits more sustainably.
![USB powered paper circuit](https://chibitronics.com/wp-content/uploads/2022/03/21-insert-clip-unto-USB-hub-1-1024x1024.jpg)
We’ll also show you how to transform hardware from your junk drawer (such as old phone chargers and cables) into a portable, sustainable method for powering your paper circuit projects.
Click here to view the tutorial.