BLE is hot lately. Everyone is designing some product with a BLE interface. So why? Because BLE is a great way to connect cell phones with your product. Considering that 80% of all humans will soon be clutching a smart phone, BLE is a great way to connect them with your products. If you want to learn more about the basics of BLE download this workshop presentation. I taught this course to about fifty engineers last quarter. It got great reviews. Email me if you want to take the class.