i need some support in my current project. I would like to trigger and read the data of 64 HCSR04 Ultrasonic distance sensors. I want to build an array of 8x8 sensors with a distance of 6cm to a vibrating wall. Through the distance variations (Amplitude is big enough) I hope to get enough information to analyse the wall.
The echo of the sensors will not effect each other. I have a big distance between each sensor and a special foam behind the sensors which will hopefully absorb the signals. I read on your website that your sketch can handle 15 sensors on a 33ms intervall. When I change the Maximum_Distance even smaller intervalls should be possible, correct?
Do you know a possibility to ping as many sensors as possible at the same time? I know that it will never be possible to trigger 64 sensors at the same time, because even with Port Manipulation it is just possible to to activate 7 Pins at the same time. Do you have any suggestions or do you know if somebody has done something similar before?