- Homemade 6V Power Supply https://www.amazon.com/LAMPVPATH-Battery-Holder-Switch-Leads/dp/B07L9M6VZK/ref=sr_1_1_sspa?keywords=4+aa+battery+holder&psc=1&qid=1664469430&qu=eyJxc2MiOiI0LjgwIiwicXNhIjoiNC40MCIsInFzcCI6IjQuMzcifQ%3D%3D&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzUUlVV0w1STVMNjc2JmVuY3J5cHRlZElkPUEwOTU5NTU1M0lMQkg1UUlPSDA4MSZlbmNyeXB0ZWRBZElkPUEwODA3OTczVUdJM0FaN0U3TzVFJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ%3D%3D&sr=8-1-spons 8 comments raspberry_pi