mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
18 lines
481 B
Markdown
18 lines
481 B
Markdown
tests/driver_srf04
|
|
================
|
|
This example shows the usage of an srf04 module.
|
|
The application uses a timer and two gpio pins.
|
|
The module is an ultrasonic range finder with a small protocol [1]:
|
|
- trigger pin is raised high for 10 us by calling trigger function
|
|
- after a sample period of 50 ms the value can be read out
|
|
|
|
[1] www.robot-electronics.co.uk/htm/srf04tech.htm
|
|
|
|
Usage
|
|
=====
|
|
|
|
Build, flash and start the application:
|
|
|
|
export BOARD=your_board
|
|
make flash term
|