go-dht | Golang library to interact with DHT11/DHT22/DHT12

go-dht is a C library typically used in Internet of Things (IoT), Raspberry Pi applications. go-dht has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

There are 2 methods how we can drive such devices which require special pins switch from low to high level and back (employing specific "1-wire protocol" described in pdf documentation): 1) First approach implies to work on the most lower layer to handle pins via GPIO chip registers using Linux "memory mapped" device (/dev/mem). This approach is most reliable (until you move to other RPI clone) and fastest with regard to the transmission speed. Disadvantage of this method is explained by the fact that each RPI-clone have their own GPIO registers set to drive device GPIO pins. 2) Second option implies to access GPIO pins via special layer based on Linux "device tree" approach (/sys/class/gpio/…​ virtual file system), which translate such operations to direct register writes and reads described in 1st approach. In some sense it is more compatible when you move from original Raspberry PI to RPI-clones, but may have some issues in stability of specific implementations. As it was found some clones don’t implement this layer at all from the box (Beaglebone for instance). So, here I’m using second approach.