BME280 Temperature Pressure Humidity Sensor
Bosch BME280 combines temperature barometric pressure and humidity in one tiny chip. I2C and SPI interface. Used in weather stations drone altitude indoor air quality and GPS altitude correction. Ultra-low power 3.4uA at 1Hz.
Capacitive Soil Moisture Sensor v1.2
Capacitive soil moisture sensor v1.2 measures soil moisture by capacitive sensing (no exposed metal = no corrosion). Analog output 0-3V. Insert into soil for real-time monitoring. ESP32 ADC compatible. Perfect for smart gardens greenhouse automation.
DHT22 Temperature Humidity Sensor
DHT22 (AM2302) is a high-precision digital temperature and humidity sensor. Range: -40 to 80C temperature 0-100% humidity. Accuracy: ±0.5C ±2%RH. Digital output single-wire interface. Includes 4.7K pull-up resistor. Essential for smart home weather stations greenhouse monitoring.
DS18B20 Waterproof Temperature Sensor
DS18B20 waterproof digital temperature probe. 1-Wire interface (multiple sensors on one pin). Range: -55 to 125C ±0.5C. Stainless steel tube 6x50mm with 1m cable. Perfect for aquariums soil temp fermentation brewing and outdoor monitoring.
HC-SR04 Ultrasonic Distance Sensor
HC-SR04 ultrasonic ranging module provides 2cm-400cm non-contact measurement. Range accuracy: 3mm. Trigger input 10us TTL pulse. Echo output TTL level signal proportional to distance. Perfect for obstacle avoidance robots liquid level measurement parking sensors.
HC-SR501 PIR Motion Sensor
HC-SR501 is an infrared human body induction module using RE200B PIR sensor. Detection range adjustable 3-7m. Trigger: repeatable/single. Delay adjustable 5-200s. Blocking time 2.5s. Perfect for security lighting auto-doors occupancy detection.
MPU6050 6-Axis Gyroscope Accelerometer
MPU-6050 is a 6-axis MotionTracking device combining 3-axis gyroscope 3-axis accelerometer and DMP. I2C interface. Gyro range: ±250/500/1000/2000 deg/s. Accel range: ±2/4/8/16g. Perfect for drones balance robots gesture recognition pedometers.