The Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...

Unexpected Maker's SQUiXL is a battery-powered ESP32-S3 WiFi and Bluetooth IoT controller and development platform with a ...

A pocket-size ultrasonic bladder-volume sensor has been constructed and tested with successful results. This paper describes the sensor and presents results from its use on healthy volunteers.