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Pin 2 of LM393 is connected to Preset (10KΩ Pot) while pin 3 is connected to Moisture sensor pin
Logic supply voltage (VCC) can be in the range of 2
These are extremely economical and can be replaced in no time
which you will want to use as a pullup from the data pin to VCC
This is a magical tool kit with various components inside for learning
LaunchTrak Altimeter by SpaceTrek wifi Pin 2 of LM393 isLaunchTrak Altimeter by SpaceTrek MADE IN USA Track launch data for up to five launches on the device, and up to 1,000 records on inbuilt NAND memory. An instant always ready to launch flight analysis tool for not just water rocketry but all forms of model rocketry. Small enough to fit most hobby rockets, and ideal for Water Rocketry 2. 0, Ultimeter uses a rechargeable battery and provides 2 hours of ON time, with capability to record Peak Altitude,
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