Hello everyone,
I will build a mobile device, and i need a range meter. I've built Ultrasonic Range Meter before with a microcontroller. But it won't be useful because it doesn't compute the distances beyond 10 meters, sound dissolves much and since it's a mobile device, maybe it won't detect returning signal(which i'm not sure).
Thus, i'm thinking about laser detection or infrared, ranging minimum 10 cm to like 40-50 meters, with centimetric tolerance, though i don't have much information about them.
What can you suggest me about this ?
Thanks.