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Battery-powered, wireless sensor to monitor the salt levels in my water softener

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NaCl Ping

Code for my battery-powered, wireless sensor to track the salt levels of my water softener. Requires a MySensors Gateway to receive the data.

Key components include:

  • Microcontroller: ATMEGA328P (clocked at 8Mhz)
  • Radio: NRF24L01+
  • Ultrasonic Sensor: HC-SR04
  • Batteries: 2 AA

Estimated battery life: ~2 years.

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Battery-powered, wireless sensor to monitor the salt levels in my water softener

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