Connect multiple HC-SR04 ultrasonic range sensors to an Arduino with I2C bus and one pinDesigned by Red Hunter in United States of America
What is it? This module - and the associated library - allow you to connect eight HC-SR04 ultrasonic range sensors to an Arduino using the I2C bus and one hardware interrupt pin. I now also have a ...Read More…
This module - and the associated library - allow you to connect eight HC-SR04 ultrasonic range sensors to an Arduino using the I2C bus and one hardware interrupt pin. I now also have a 16 sensor version - the OctoSonarX2.
I wanted more sensors on my robot to help it navigate. I'm too cheap to buy a mega board with enough pins or smarter sensors that need less pins.
The library handles all the timing, and the hardware interrupts provide surprisingly high accuracy. Each unit is individually tested using an Arduino test-bed and ships with separate pin headers.
I am stocking some of the sensors and cables too, so you can get them at the same time. These are batch tested to verify that they are not the type with the echo-lock problem. See this thread on the Arduino forum
Base package includes the module and 40 header pins
Robot pack includes:
Note that the picture pre-dates the creation of the trimount brackets. They look a lot better than the bent aluminium and sticky pads shown.
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