DC-DC 1.8V-5V to 3.3V Step Down Step Up Buck Boost Converter Wifi Bluetooth ESP8266
$1.21
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Wiring Diagram: Applications: Low Power Wifi Module:ESP8266 Low-power Bluetooth module : HC-05 HC-06 Low-power Wireless UART module : HC-11 HC-12 Low-power wireless module : CC1101 CC2500 Nrf24l01+ Low-power LED Driver Package Included:1X DC DC 1.8V-5V to 3.3V? Buck Boost Converter
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