ArduinoHA allows to integrate an Arduino/ESP based device with Home Assistant using MQTT. The library is designed to use as low resources (RAM/flash) as possible. Initially, it was optimized to work ...

You don’t see them much anymore, but there was a time when any hobbyist who dealt with RF probably had a grid dip meter. The ...

Abstract: This paper presents an overview of recent developments in smartphone spectrometers focusing on light collection, dispersion, detection and spectral calibration. These spectrometers ...

Abstract: This paper describes a portable and inexpensive spectrophotometer for the detection of nitrite in simulated urine, indicating the presence of a bacterial infection in the urinary tract. It ...

Tuitar is currently in prototype stage but you can still try it out and contribute to the project. The plan is to feature it on CrowdSupply once the firmware and hardware are stable. Let me know if ...