| PEARSON CONSULTING | SOFTWARE | SERVICES | PROJECTS | IDEAS | ABOUT |
Range Helper
 |
| Name: | Range Helper Board |
| CPU: | ATtiny85 |
| Status: | In Work. |
| 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 |
| Software | Project folder |
| Schematics |
Range Helper schematic |
Description
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
vibrates.
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.
- 8 MHz AVR ATtiny85
- 1 motor control and vibrator motor
- 1 Ultrasonic range module
- 5v to 3.7v LiPo battery charger
- 3.7v to 5v DC-DC boost circuit
- AVR ISP programming header
- Status LED