Ultrasonic Distance Sensor: Difference between revisions
Jump to navigation
Jump to search
| Line 5: | Line 5: | ||
=Tech Support= | =Tech Support= | ||
*Sparkfun has them - [https://www.sparkfun.com/categories/84]. Online chat at https://www.sparkfun.com/technical_assistance | *Sparkfun has them - [https://www.sparkfun.com/categories/84]. Online chat at https://www.sparkfun.com/technical_assistance | ||
=R&D= | |||
*Making a better HC-SR04 distance sensor - Emil - [http://uglyduck.ath.cx/ep/archive/2014/01/Making_a_better_HC_SR04_Echo_Locator.html] | |||
=Selection= | =Selection= | ||
Revision as of 04:22, 26 August 2016
Requirements
- 1mm accuracy optimal, 3 mm is absolute max
- Open source version of http://www.cnccontrols.com/thcontrol.asp - 20-250 mm range for pointing to metal, with no obstructions
Tech Support
- Sparkfun has them - [1]. Online chat at https://www.sparkfun.com/technical_assistance
R&D
- Making a better HC-SR04 distance sensor - Emil - [2]
Selection
- Maxbotics - 1 mm resolution options, not water protected - 12" minimum distance - $40 - [3]. Adafruit has it.
- Microptik - 3 mm resolution - http://www.micropik.com/PDF/HCSR04.pdf - 2-400 cm range - services@elecfreaks.com. Sample Arduino sketch - [4]
- HC-SR04 - appears to get 3 mm accuracy - [5]. Sparkfun has the sensor + code - [6]
Comparisons
Explanation
- Nice video - [7]