|Name:||Range Helper Board|
|Summary:||The Range Helper is used to measure distance and increase
the speed of a vibrator motor as the distance decreases.
It has a built-in LiPo charger and 3.7v -> 5v boost circuit.
|Specifications||8 MHz CPU, vibrator motor control, ultrasonic sensor, a Status LED, on-board LiPo charger, DC-DC boost.|
|Dimensions:||1.9" x 2.5"|
|Power:||3.7 LiPo battery|
Range Helper schematic|
The Range Helper is designed to assist vision impaired persons to navigate
their surroundings. It provide range information through controlling the
speed of a vibrating motor. The closer and object is, the faster the motor
The on-board LiPo battery can be charged with a standard phone 5v USB charger.
A DC-DC boost circuit provides 5v.
A status LED is also provided for development work.