A Low Effort, Low Energy Doorbell

Bluetooth is a good way to connect devices that are near each other. However, it can drain batteries which is one reason Bluetooth Low Energy — BLE — exists. [Drmph] …read more Continue reading A Low Effort, Low Energy Doorbell





![[miko_tarik] wearing diy AR goggles in futuristic setting](https://hackaday.com/wp-content/uploads/2024/11/diy-ar-goggles-1200.jpg?w=800)

