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DHT20 is a brand new ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor element and a standard on-chip temperature element. All sensors are factory calibrated and characterized by low power, high precision & stability, fast response, and strong anti-interference. Moreover, the DHT20 performance parameters of accuracy, power supply voltage, measurement range and response time have been enhanced greatly over the previous generation, making it more cost-effective.
Besides that, the DHT20 temperature & humidity sensor employs I2C digital output protocol, which is very suitable for HVAC, automobiles, data loggers, weather stations, home appliances, and other related temperature and humidity detection and controlled areas.
|Gravity: DHT11 Temperature & Humidity Sensor||Gravity: DHT22 Temperature & Humidity Sensor||Gravity: DHT20 Temperature & Humidity Sensor|
|Communication Method||One wire||One wire||I2C|
|Temperature range ± error||0~+50 ± 2 ℃||-40~+80 ± 0.5℃||-40~+80 ± 0.5℃|
|Humidity range ± error||20~90% ± 5%RH||0~100% ± 2%RH||0~100% ± 3%RH|
|Introduction||Classic temperature and humidity sensor, low price, suitable for designs with low accuracy requirements||High-precision temperature and humidity sensor, high price, high detection range and accuracy||High-precision temperature and humidity sensor, DHT11 upgrade version, the same price but improved performance, using I2C communication, data is more stable|
Introduction: I had the idea to use a Unihiker to make a desktop Geiger counter. Basically, it's a device to detects the intensity of ionizing radiation. A typical Geiger counter has a sealed inflated tube and display that counts detected particles over time. I'll share how I DIY'ed the Geiger counter, to help with checking radiation levels in daily life.