23rd March 202113th March 2025By Harry Whitearduino, circuit, instructable, Project: Project Clean Access, social distancing, ultrasonic Ultrasonic occupancy counter with Arduino and HC-SR04 Limiting the number of people inside a shop or venue can help to maintain social distancing. This simple Arduino project can be […]
27th November 202013th March 2025By Harry Whitearduino, Project: Project Clean Access Voice Loudness Monitor – Instructable A paper from 2019 found that speaking with a louder voice creates more aerosolised viral particles [Asadi et al. 2019]. This simple […]