The sensor and mote must have a common ground, so the ground of the sensor must connect to both the mote and the ground of your 5V power supply. As long as the analog output does not exceed 3V, it can be connected directly to the mote's analog inputs.
-Joe On 7/29/07, Chen Bleed <[EMAIL PROTECTED]> wrote: > > Hello, all > > I am a rookie of mote world. Now I have a tmote sky and want to transmit > signal to the analog input on it. I see the expansion pins may help and I > find pin 3 is a analog input. Then, I have a problem. > > I use Sharp GP2D12 IR sensor. It has one 5V Vcc , one GND and one analog > output among 2V. If I set up this sensor(Vcc and GND) and code for tmote sky > already. May I just connect one analog output of IR sensor into analog input > of tmote sky ?? > > Because I know tmote only has not over 3 V voltage, I dont use its VCC > and GND in expansion to connect to IR sensor(needs 5V). So, just one analog > output line of IR sensor can do anything?? > > thx, all and sorry for my bad English. > > Chen, Chien Mao > > > ________________________________ > 用部落格分享照片、影音、趣味小工具和最愛清單，盡情秀出你自己 — Windows Live Spaces > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
