In todays market of Electronic Travel Aid [7] (ETA), existing devices are either expensive (vOICe), heavy, or uncomfortable to wear (Sensor Vest) or prevent the use of a white-cane (Tuvie). The ’Radar for the Blind’ (RFB) is inexpensive, light weight, comfortable to wear, and it does not prevent the use
of a white-cane. The RFB consists of three modules: a hat sensor, a white-cane attachement, and a glove. The hat sensor and the white-cane attachment are the sensing modules of the RFB while the glove provides haptic feedback to the user. Ultrasonic sensors, Atmega328p microcontroller, vibration motors and RF transmitters and receivers are used in the system. The use of these hardwares provide the system to be low cost eliminating financial burden to consumers. These hardwares also allow the system to be lightweight and comfortable eliminating wrist fatigue and other possible discomfort potentially resulting from using heavy ETA for long periods of time. The RFB is designed to provide visually impaired people with obstacle detection above the waist, to the front and sides while maintaining it to be a user-friendly device. The design of placing a sensor on the tip of the white cane allows the system to detect obstacles above the waist and to minimize the carried weight when the white-cane is used via rolling technique. Attaching sensors on the center, left and right of thebrimofthehatallowstheRFBforwardandsidedetections. Lastly, wireless communication between the modules is used to make the system as discreet as possible. Unit and integration testing results are evidence that the ’Radar for the Blind’ is a feasable system that can enhances the detection capability of the visually-impaired.