DHT11 or GPIO Library to Use in C

Question

I am teaching a child C programming with the RPi using a project with the DHT 11. I'm coming from Python and Node on the RPi but haven't done I/O on the RPi in C. What are some available libraries we could use, where would I find them, and what are their benefits?

score 4 · Accepted Answer · edited Dec 17 '18 at 19:02

4

For the GPIO libraries available on the Pi see

http://elinux.org/RPi_GPIO_Code_Samples

For C the usual choices are

edited Dec 17 '18 at 19:02

Community

1

answered Nov 29 '16 at 15:10

joan

71,852
5
76
108

score 1 · Answer 2 · edited Jun 16 '20 at 10:47

1

Personally I'd go with the bcm2835 library as its closest to the hardware. If you want to work with a DHT11 then see: A Custom Protocol - The DHT11/22

Which covers the entire how to use the DHT22 in more detail than you could ever need :-)

edited Jun 16 '20 at 10:47

Community

1

answered Dec 04 '16 at 16:12

Mike James

146
1

score 0 · Answer 3 · answered Dec 05 '16 at 11:54

0

Use WiringPi - http://wiringpi.com/ - it has a simplified API, but that's entirely optional... you can do everything you can do in C/C++.

The documentation and examples are excellent.

answered Dec 05 '16 at 11:54

user400344

264
2
4

DHT11 or GPIO Library to Use in C

3 Answers3