Hello I'm trying to measure the radio module power (in send/receive state). My platform is telosb (tinyos2.x and radio module is cc2420). I use low power listening interface.
I have two nodes: The first one is just a sender; it should only send packet and doesn't need to receive any thing. I've set the transmission power to lowest level on sender, transmit 2 packets per second periodically. So according to datasheet, I expect it to consume about 9mA for a short period and then goes to sleep mode and consumes about a few uA. But after sending these 2 packets, it spends more time (~100ms) in receive mode (consuming about 20mA). I put a resistor (12ohm) in series with voltage supply and measure the voltage drop on it. Here is a figure of signal: https://www.dropbox.com/s/mvd9b2tug0ub2z5/wave1.png That two narrow drops correspond to send modes. But this node is just a sender and won't receive any thing. How can I avoid it from going to receive mode? I found this thread, but it has no solution: http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2011-March/049895.html Many thanks _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
