This is a simple soil moisture data logger using an Arduino Uno with a power-controller circuit to regulate connection between a battery pack and the Arduino. It has a battery life of months and is suited for remote data collection.
A combination of the Gujarati words for work and play (kam and ram) Kamakdas are tools disguised as toys which allow the kids to play and in the process reconnect with the earth. They are a specially designed set of five lightweight gardening tools.
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