how many GP2D15

[emara]

i am doing a project for obstacle avoidance using sharp GP2D15 IR proximity sensor
i want to know the minimum number of sensors i have to use to cover the front area?

 

[Nigel Goodwin]

i am doing a project for obstacle avoidance using sharp GP2D15 IR proximity sensor
i want to know the minimum number of sensors i have to use to cover the front area?

It obviously depends on how big the front is!, and also how full a coverage you need.

The obvious thing to do is get two of them, and try varying the spacing to see what works best.