[Tinyos-help] extension pin of tmote sky and external power supply

2008-03-07 Thread miriam herraiz
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 t

Re: [Tinyos-help] extension pin of tmote sky and external power supply

2008-03-07 Thread weiping SONG
Hi Miriam, The Supply Voltage for Tmote Sky is between 2.1V to 3.6V. I hope this information is helpful to you. Regards, Weiping 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 usi

Re: [Tinyos-help] extension pin of tmote sky and external power supply

2008-03-07 Thread Michael Schippling
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 ca

Re: [Tinyos-help] extension pin of tmote sky and external power supply

2008-03-07 Thread Eric Keller
Is Trawler reading from ADC0? Sorry if that's an ignorant question. Also, if you are using a good lab power supply, make sure pin 3 is hooked to the positive output voltage and pin 9 is hooked to the negative output voltage of the supply. Do not use the ground of the power supply. Lab power sup