- http://arduino-info.wikispaces.com/UltraSonicDistancehttp://arduino-info.wikispaces.com/….
- SRF-06 (equivalente ao GC-SR04 com compensação de temperatura)
- SRF-05
- SRF-04
- HC-SR04
- https://sites.google.com/site/grcbyte/electronica/arduino/ultrasonic-hc-sr04https://sites.google.com/…./ultrasonic-hc-sr04
- http://fristec.blogspot.com/2011/01/14-aplicacao-sensor-de-distancia-hc.htmlhttp://fristec.blogspot.com/….
- http://ferpinheiro.wordpress.com/2011/04/29/meu-primeiro-projeto-arduino-sensor-ultrasonico-hc-sr04/http://ferpinheiro.wordpress.com/….
- http://www.kemper.com.br/wordpress/2011/08/30/hc-sr04-um-sensor-de-ultra-som-barato/http://www.kemper.com.br/….
- http://www.maxbotix.com/
- http://www.maxbotix.com/documents/MaxBotix_Ultrasonic_Sensor_Selection_Guide.pdfhttp://www.maxbotix.com/….
- https://www.sparkfun.com/search/results?term=maxbotix&what=productshttps://www.sparkfun.com/….
- http://www.tato.ind.br/detalhe_produto.php?codigo_chave=114http://www.tato.ind.br/….
- http://www.instructables.com/id/Getting-started-with-the-Maxbotix-sonar-sensor-q/?ALLSTEPShttp://www.instructables.com/…./?ALLSTEPS
- http://www.scriptforge.org/?p=146
- http://www.dfrobot.com/index.php?route=product/product&product_id=136http://www.dfrobot.com/…./product&product_id=136
- http://tronixstuff.wordpress.com/2011/12/13/project-ultrasonic-combination-switch/http://tronixstuff.wordpress.com/….
- TR40-16
- http://www.senix.com/products.htm