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use a 1kΩ resistor
Premium soldering iron needle bit designed for maximum durability and precision performance across multiple Soldron soldering station models
ensure proper lighting conditions during initial setup and verify USB power delivery meets the 500mA requirement
Pin Function VCC +5V Power Supply GND Ground RO Receiver Output (to MCU RX) RE Receiver Enable (Active Low) DE Driver Enable (Active High) DI Driver Input (from MCU TX) A RS-485 Signal A B RS-485 Signal B Connection Guide
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