We are very happy to introduce to you the Tidmarsh Sensor Nodes, designed by Brian Mayton. As part of the LIving Observatory Initiative these small sensor node have been place in the Tidmarsh Farms to capture climate and other environmental data, and are capable of streaming audio from high in the trees and underwater. Visit at any time from dawn till dusk and again after midnight, and check the weather report below for highlights; if you’re lucky you might just catch an April storm, a flock of birds, or an army of frogs.
The Tidmarsh sensor node is a small, low-power wireless sensor node platform. In addition to its onboard sensor set (temperature, humidity, barometric pressure, ambient light, and vibration/motion) it can optionally contain an audio codec DSP and expansion for additional analog and digital sensor channels.
It is powered by either 3 AA batteries (of various chemistries) or a lithium polymer pack. The batteries can be charged by an external power source, such as a solar panel.
The sensor nodes include a low-power 802.15.4 radio operating in the 2.4GHz band, and use the Atmel Lightweight Mesh protocol to communicate. It is also possible to interface with the nodes via the serial port.
You can find more information about the development environment and how to add additional sensors here.
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