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Module Pin Connection VCC (+) Battery positive terminal GND (-) Battery negative terminal > Note: Ensure the battery voltage falls within the module's supported input range
You can cut
On-Board USB-to-Serial: CP2102 or CH340 chip with auto-program circuit means plug-and-play uploading - no manual boot-mode button pressing required
Enclosed Metal Case - Protects circuitry
Speaker 4 Ohm 3W Size 4070 Mornsun LI150-20B15PR2 AC/DC 150W DIN-Rail Power Supply Fast Fulfillment: Same-day order processingSpeaker 4 Ohm 3W Size 4070
US$ 32.00
US$ 35.00
US$ 35.00
