IR distance module Design.

Job ID: 33443673

Budget: $30 – $250 USD

Hello!
I need an engineer to help me develop IR distance module.
The distance detection range is 10 ~ 100cm.
The most important thing is cost.
The overall estimated cost of the completed module should be <$5 USD at 1000 units.
But schedule is most important.
I wish the design will be completed within 3 days.