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Turn Your iPhone into a Plant Moisture Sensor
Convert an iPhone or iPad into a quadcorder and use it to “scan” for intel, like how wet or dry your plant soil is.
Wirespondence, Serial Bluetooth with a Micro, Analog Front End, AM/FM Receiver Restoration
Analog Waves from Digital Signals, DIY Electric Scooter, The Solar Alternative, Driving LEDs with a Microcontroller
Selected questions from past Q&A columns.
Need to brush up on your electronics principles? These multi-part series may be just what you need!