KiCad boards from 3 GitHub repositories tagged “sht4x”, the most starred first; open any of them in PCBKit.
mikelawrence/esphome-indoor-multi-sensor-hardware
ESPHome Indoor Multi-Sensor hardware. This design supports Radar/PIR Presence, Temperature, Humidity, Pressure, Light, CO2, CO, VOC, NOX and PM sensors.
rajtik76/weather-station
Balcony weather station in Plzeň: an ESP32 measuring temperature, humidity, pressure, noise and light, with a calibrated shade air temperature estimate checked against ČHMÚ Plzeň-Mikulka. Laravel and Livewire dashboard.
Szymon423/Air-Quality-Sensor
Open-hardware indoor air quality monitor: ESP32-S3, SCD41 CO₂, SHT4x temp/humidity, SPA06 pressure, WS2812 LED ring. Round PCB in KiCad, 3D-printed enclosure.
rajtik76/weather-station
Balcony weather station in Plzeň: an ESP32 measuring temperature, humidity, pressure, noise and light, with a calibrated shade air temperature estimate checked against ČHMÚ Plzeň-Mikulka. Laravel and Livewire dashboard.