Smogly(formerly: Smogomierz) - simple and cheap PM 2.5 and PM10 sensor based on NodeMCU (ESP8266) or ESP32

Raspberry Pi Sensors

HTU21D full function driver library for general MCU and Linux.

This is an Arduino library for HTU21D, Si7021 and SHT21 Digital Humidity & Temperature Sensor

Weather Display (7.5in eInk) with an ESP32, indoor sensors, receiving data from DarkSky.net

Drivers and home automation projects for Raspberry PI.

An all-in-one ESP8266 based weather station.

Raspberry Tool for managing I2C modules. EEPROM (24c01-1024), PWM LED/Motor driver (PCA9632), I/O driver (PCA9557), Temp/Humid sensor (HDC1080, HTU21D), Fan controller with a PWM (EMC2301), Pressure sensor(MS5637), Display (SSD1306), Current Voltage Power measurement (INA226, INA260), PMU (AXP209), i2cdetect

ESP RCM - Room Climate Monitor with ESP8266, HTU21D, Si7021, AM2320

Nixie Library for clock development

About This is an Arduino library for HTU2xD, Si70xx and SHT2x Digital Humidity & Temperature Sensor

BLE to MQTT Bridge using espressiff esp32 reading nRF52840 BLE-node. As a gateway includes Lux (BH1750), temperature and humidyty (HTU21D), CO2 and TVOC (CCS811)

Agent/device-based sensor mesh with a readable UI.

Extended version of a WiFi Cloud Controller based on ESP8266 and Blynk, works with BME280, SHT3x, HTU21, DS18B20 probes for controlling temperature, humidity or both.

An MagicMirror² module which displays the current temperature and humidity measured by external scripts

Environment control with Wemos D1 mini

A micropython library to measure humidity & temperature data from the htu21d sensor on ESP32

Homekit Compatible Temperature and Humidity Sensor - ESP32 - Arduino

A MagicMirror² module which peridocally calls configured scripts and sends the output as notification