The Grove - Alcohol Sensor implements all the necessary circuitry for MQ303A like power conditioning and heater power supply. This sensor outputs a voltage inversely proportional to the alcohol concentration in air.
Based on Bosch BME280, we made this low-cost and high-precision environmental sensor -- the Grove - BME280 Environmental Sensor (Temperature Humidity Barometer), support I2C and SPI.
Grove BME680 Temperature, Humidity, Pressure and Gas Sensor is a 4-in-1 environmental sensor with strong sensing capability for Temperature, Humidity, Pressure, and Gas (VoC) even in a small package!
Grove Time-of-Flight (ToF) Sensor Description Grove Time-of-Flight (ToF) Sensor – VL53L0X is a high-speed, high-accuracy and long-range ToF distance sensor
Labdisc
Botzees
Edison
Telepresence Robot
DOBOT
Keyestudio
Fischertechnik