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If you want to use it for a long time
PLA picks up moisture over time
D0 - D13 Arduino Analog Pins 6
This ethernet module uses the Wiznet W5100 ethernet chip
5V with reduced brightness)
5V 10A 1-Channel Relay Module w/ Optocoupler zero4u If you want to useSimple Load Switching for Arduino, ESP32, and Automation Builds The 5V 10A 1 Channel Relay Module with Optocoupler (NO NC) is a practical relay module from Circuitrocks for students, makers, and repair friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as 5V, 10A. That makes it a solid
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