Your use of "external power supply" is a bit confusing...
I think what you are asking is how to measure a voltage on an ADC
input pin, not how to power the tmote externally, right?
Your connection to pins 3 & 9 is right. Then you want to read ADC0
and transmit the value. What do you mean by "I can't see this value
in Trawler"? You don't get any data, or you get a value that makes
no sense? If the latter what values are you getting?
MS
miriam herraiz wrote:
Hi all,
I am working with tmote sky, and my aim is to use an external power
supply, connect it to the 10-pin expansion of the mote and using
Trawler, observe the voltage I put in the power supply. I have done the
code to use the ADC ports and to send the data via radio. The problem is
when I see the data in the GUI, it is weird! if I put 1 V in the power
supply I can't see this value in Trawler. I don't know if I need to
connect something else to the mote. The connection between power supply
and tmote is using pin 3 (adc0) and pin 9(gnd). Can anyone tell me any
suggestion????
thanks,
Miriam
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--
Platform: WinXP/Cygwin
TinyOS version: 1.x, Boomerang
Programmer: MIB510
Device(s): Mica2, MicaZ, Tmote
Sensor board: homebrew
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