{"product_id":"yahboom-ch340g-usb-ttl-adapter","title":"Yahboom CH340G USB to TTL Module 3.3V\/5V Selectable UART Serial Adapter with 4 DuPont Wires","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Yahboom USB to TTL module is a CH340\/CH340G-based USB-to-UART serial communication adapter for programming, writing\/downloading firmware, and general serial port communication\/debugging. It uses a CH340 original chip (STC official recommended USB to TTL chip) for stable, high-speed operation and strong compatibility across different computers\/drivers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCH340 original chip (CH340\/CH340G USB to TTL solution)\u003c\/li\u003e\n\u003cli\u003eSelectable output voltage: 3.3V or 5V (selected by shorting cap \/ short circuit cap)\u003c\/li\u003e\n\u003cli\u003eStatus indicators: power indicator (PWR), TXD indicator, RXD indicator\u003c\/li\u003e\n\u003cli\u003e6-pin TTL header labels: 5V, VCC, 3V3, TXD, RXD, GND\u003c\/li\u003e\n\u003cli\u003eSupported systems: Windows \/ macOS \/ Linux\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVoltage Selection Notes (from provided instructions)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e5V or 3V3 power supply can be selected by shorting circuit cap.\u003c\/li\u003e\n\u003cli\u003eThe voltage selection of the short-circuit cap on the 6PIN pin:\u003c\/li\u003e\n\u003cli\u003eConnect 5V-VCC short circuited to 3V3-TTL output.\u003c\/li\u003e\n\u003cli\u003eConnect 3V3-VCC short circuited to 5V-TTL output.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBasic Use Notes (from provided instructions)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe selection of 3V3 and 5V depends on the actual application environment. When the system is 3.3V, select 3V3, and when the system is 5V, select 5V.\u003c\/li\u003e\n\u003cli\u003eIf the drive and wiring are correct, and the module cannot communicate normally, exchange the RXD and TXD lines and try again.\u003c\/li\u003e\n\u003cli\u003eSimple module test method: short-circuit TXD and RXD of the module, open a serial port debugging tool, and send data. Returning the original sample indicates the module is OK.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eUSB to TTL module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChip scheme\u003c\/td\u003e\n\u003ctd\u003eCH340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V and 5V (selected by shorting cap)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported systems\u003c\/td\u003e\n\u003ctd\u003eWindows \/ macOS \/ Linux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct size\u003c\/td\u003e\n\u003ctd\u003e52mm*16mm*8mm PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e30mm*17mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct weight\u003c\/td\u003e\n\u003ctd\u003e6g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eInterface \/ Pinout\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUSB interface\u003c\/li\u003e\n\u003cli\u003e6-pin header: 5V, VCC, 3V3, TXD, RXD, GND\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWriting\/communicate:\u003c\/strong\u003e can be used for writing firmware into an STM32 core board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect Bluetooth\/WiFi module for communication:\u003c\/strong\u003e the computer USB is inserted into this module, and the module is connected to Bluetooth with DuPont cable; master\/slave mode can be used to communicate with other Bluetooth devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial port data debugging:\u003c\/strong\u003e connect to a micro-controller and sensor; a serial port debugging assistant can be used to read sensor data.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUSB to TTL module x 1\u003c\/li\u003e\n\u003cli\u003eDuPont lines x 4\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor wiring or compatibility questions (STM32\/Raspberry Pi\/Jetson Nano serial connections, jumper settings, and driver troubleshooting), contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Yahboom CH340G USB to TTL module with 3.3V\/5V selectable UART serial adapter and 6-pin header\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines.jpg?v=1782181493\"\u003e\u003cp\u003eBuilt around the CH340\/CH340G USB-to-UART chip for stable serial communication, flashing, and debugging on Windows, macOS, and Linux.\u003c\/p\u003e\n\u003cimg alt=\"USB to TTL adapter wired to an STM32 development board for firmware writing and serial communication\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_ec050508-3075-4b9e-bfb2-7924e30bb6ca.jpg?v=1782181500\"\u003e\u003cp\u003eUse the 6-pin TTL header and DuPont wires to program STM32 core boards directly from a computer USB port.\u003c\/p\u003e\n\u003cimg alt=\"CH340G USB to UART TTL adapter connected to a Bluetooth\/WiFi serial module with DuPont jumper wires\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_a459a91f-55ce-40af-b3df-7a10d88150ed.jpg?v=1782181508\"\u003e\u003cp\u003eA quick way to bridge a laptop USB port to Bluetooth\/WiFi serial modules for configuration and data transfer.\u003c\/p\u003e\n\u003cimg alt=\"Serial port debugging software screen for reading sensor or microcontroller data over a USB to TTL UART adapter\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_61115bb5-9492-4d29-9fac-bcaf621ade50.jpg?v=1782181515\"\u003e\u003cp\u003ePair the adapter with a serial terminal to monitor TX\/RX data streams while developing sensors or MCU projects.\u003c\/p\u003e\n\u003cimg alt=\"Wiring schematic for USB to TTL module connections to STM32 core board, Raspberry Pi, and Jetson Nano UART pins\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_067a52ef-3ba3-4dba-9868-b6617dc89cb6.jpg?v=1782181523\"\u003e\u003cp\u003eReference wiring examples for common platforms, including STM32, Raspberry Pi, and Jetson Nano UART connections.\u003c\/p\u003e\n\u003cimg alt=\"Product parameters graphic listing CH340 USB to TTL module size, 3.3V\/5V output selection, OS support, and weight\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_38b958a8-e362-4ce1-8744-9670d7ed0ee5.jpg?v=1782181530\"\u003e\u003cp\u003eCompact 52×16×8 mm USB-to-TTL module with selectable 3.3V\/5V output via the shorting cap.\u003c\/p\u003e\n\u003cimg alt=\"Interface pinout of the USB to TTL module: 5V, VCC, 3V3, TXD, RXD, GND plus PWR\/TX\/RX status LEDs\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_4ed06947-4c7c-4a94-b147-67e88e64cc44.jpg?v=1782181537\"\u003e\u003cp\u003eClear pin labels and onboard PWR\/TX\/RX indicators make wiring and troubleshooting straightforward.\u003c\/p\u003e\n\u003cimg alt=\"Instructions for selecting 3.3V or 5V output and testing the CH340 USB to TTL adapter by shorting TXD and RXD\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_5bf3924d-f361-4061-8839-fe5dfac6d04f.jpg?v=1782181544\"\u003e\u003cp\u003eSelect 3.3V or 5V to match your target, and loop TXD to RXD for a simple communication self-test.\u003c\/p\u003e\n\u003cimg alt=\"Live product photos of the Yahboom USB to TTL UART adapter showing USB plug, CH340 chip side, and labeled header pins\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yahboom-USB-to-TTL-Module-with-4PCS-DuPont-lines_eef26dc7-8f78-4a43-8f8f-c354658fe591.jpg?v=1782181550\"\u003e\u003cp\u003eReal-board views show the USB connector, the voltage-select jumper area, and the labeled 6-pin header for quick hookup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"yahboom","offers":[{"title":"Default Title","offer_id":53141709291744,"sku":"6000300073\/6000300060-1","price":8.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/USB_to_TTLModule_01.jpg?v=1782142185","url":"https:\/\/rcdrone.top\/nl\/products\/yahboom-ch340g-usb-ttl-adapter","provider":"RCDrone","version":"1.0","type":"link"}