Hi Josh, It depends on the type of output which your sensor has. If it is a digital output, you should connect it to any of the GIO pins and use the MSP430GeneralIO component, you have to notice that there are some GIO which share pin with I2C connectios and ADC pins, so If you use either GIO1 or GIO0 you have to connect R16/R15 as it is shown in TMoteSky dataSheet, if it is analog output you should use ADC interface and connect the output in some of ADC ports, as explained in this link: http://www.moteiv.com/community/Connecting_External_Sensors
I hope this help you Regards David -----Mensaje original----- De: [email protected] [mailto:[email protected]] En nombre de Josh Mason Enviado el: miércoles, 21 de octubre de 2009 7:26 Para: [email protected] Asunto: [Tinyos-help] Attaching moisture sensor to TelosB I'm trying to attach a Decagon EC-5 moisture sensor to a TelosB, but I'm not really sure how to attach it or configure the mote to take the readings from the external sensor. I'm a bit confused on where to attach the excitation and the analog out wire from the sensor to the mote. I need to excite the the sensor for about 10ms before I can get a reading, which I believe means I need to connect it to the GIO. Can I connect the analog out to another GIO or does that need to go through one of the ADC pins? I'm also having trouble trying to figure out how to wire my application correctly. Can any provide an example or point me in the right direction? Part of my problem is I don't know how to initialize the configuration structure needed by the ADC to configure itself. If I only use GIOs, do I need to even do this? Any help would be greatly appreciated. - Josh _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
