CHAPTER 1
DHT11 Sensor
The DHT11 humidity and temperature sensor is an economical peripheral manufactured by D-Robotics UK (www.droboticsonline.com). It is capable of measuring relative humidity between 20 and 90% RH within the operating temperature range of 0 to 50°C, with an accuracy of ±5% RH. Additionally, temperature is measured in the range of 0 to 50°C, with an accuracy of ±2°C. Both values are returned with 8-bit resolution.
Characteristics
The signaling used by the DHT sensor is similar to the 1-Wire protocol, but the response times differ. Additionally, there is no device serial number support. These factors make the device incompatible ...
Get Experimenting with Raspberry Pi now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.