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Solar-powered ESP32 garden sensor — 6 months on a 6V panel
Goal: a wireless soil + air sensor I can stake into the garden, powered entirely by sunlight, that runs for at least 6 months without intervention. Got there — has now survived monsoon season unattended. Power chain: • 6V / 2W solar panel (mini polycrystalline, ~115×85mm) • TP40…
