Lesson 4 RFCx: the Rainforest Savior
After he returned home to the U.S., in his father’s garage he developed a small listening device using an old cell phone.
He attached a sensitive microphone to the cell phone so that it could detect chainsaw noise from up to three kilometers away.
This device would be placed high up in a tree.
When it picked up the buzz of a saw, it would send a message to a ranger’s cell phone.
White knew that he had to protect the cell phone so that it could survive in the hot and wet rainforest environment.
His solution was to put the phone in a plastic box.
Since there was no electricity where the phone needed to be placed, the device had to be able to power itself.
White attached solar panels to the cell phone.
He was sure that the panels would work, even under the shade of the thick tree leaves.
White returned to Indonesia to test the device.
Surprisingly, on only the second day after he installed the device, it picked up chainsaw noises.
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