Fall 2015 MicroBiped Distance Sensor
DISTANCE SENSOR TRADE-OFF
By Brian Walton (Controls Engineer)
Approved by Paul Oo (Project Manager)
Approved by Railly Mateo (Systems Engineer)
Image provided by Sparkfun.com
| SENSOR | Sain SmartHC-SR04 | LIDAR-Litev2 |
| POWER SUPPLY | 5 V | 6 V |
| WORKING CURRENT | 15 mA | 2 mA |
| DIMENSION | (45 x 20 x 15) mm | (20 x 48 x 40) mm |
| RESOLUTION | 0.3 cm | 1 cm |
| PRICE | $10.00 | $115.00 |
The table above compares 2 possible sensors to use for the µBiPed project. The chart compares working voltage, working current, dimension, resolution, and price. After comparing the two sensors, the group decided on using the Ultrasonic Sensor for the purpose of having a more cost efficient payload.
- Sain SmartHC has better resolution
- Although the working current for the HC-SR04 is higher, the cost of purchasing a single LIDAR overweighs its positive trade-offs.