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The top contenders claim that winning the prize, which will be declared this month, would help them impact the lives of millions
Aardware weather station rebuild Short of employing Bletchley Park to discover the instruction set of the decades-old Aardware weather station that a school is trying to resurrect, it looks like a hardware refresh is in order. The anemometer, wind vane and tipping bucket rain gauge all seem to be of high quality and have come through all that time on the roof battered, but not broken – well, not very broken*. Circuit-wise, the wind sensor combination is made up of reflective opto-couplers and looks like this: The sensor for the least-significant bit of wind direction was never fitted, and...