do i need 2 spiders to make a robot like in the video?

Hi, sorry for the late reply, Romeo BLE is a microcontroller based on Arduino, you can check its product page.http://www.dfrobot.com/index.php?r... Actually there are a lot of interesting projects with BLE device. you can search BLE on the store. Some client share their project in the comments

Hi Actually, I recommend our Romeo BLE directly. It includes Bluetooth and motor drivers on the board. Just need a servo and TR/Ultrasonic sensor as its eye.

why do i require two spider to make a spider like in the video?