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FIGURE 1 The12V gel cell battery allowed me to run the LED light bar at the Eagle's Nest, to test placement and calculate how many lights I would need to cover the entire area.

Local Isolation

Using the Sun’s Energy Inspired by Stuart Ball’s recent piece in Circuit Cellar on solar energy basics, I decided to build a low-voltage solar energy system. I talk about the battery and detail how I used the Modbus protocol with RS-485 serial communication for remote monitoring, with the ESP32-based HUZZAH32 Feather microcontroller (MCU). This is […]
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