http://jeelabs.org/2009/03/23/the-jeenode-v2-works/ Computing stuff tied to the physical world Mon, 06 Feb 2012 13:55:24 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://jeelabs.org/2009/03/23/the-jeenode-v2-works/#comment-51 jcw Thu, 26 Mar 2009 16:32:32 +0000 http://jeelab.wordpress.com/?p=1122#comment-51 <p>I measured about 20 mA while the RFM12B is receiving. Haven't gone into low-power issues yet, my first sensor nodes will all use a small wall-plug adapter for power. Since the ePIR motion sensor I'm using draws several milliamps, there's not much chance of running that on battery power. The JeeNode itself is just the ATmega and the RFM12B, both of them support power-saving modes.</p> I measured about 20 mA while the RFM12B is receiving. Haven’t gone into low-power issues yet, my first sensor nodes will all use a small wall-plug adapter for power. Since the ePIR motion sensor I’m using draws several milliamps, there’s not much chance of running that on battery power. The JeeNode itself is just the ATmega and the RFM12B, both of them support power-saving modes.

]]> http://jeelabs.org/2009/03/23/the-jeenode-v2-works/#comment-50 Wouter Thu, 26 Mar 2009 15:39:07 +0000 http://jeelab.wordpress.com/?p=1122#comment-50 <p>Do you happen to know the power usage of these boards? I'm planning on building a WSN also, and these boards look very nice :)</p> Do you happen to know the power usage of these boards? I’m planning on building a WSN also, and these boards look very nice :)

]]>