$9.99
Yahboom USB Multi-functional Serial Port Module for STM32, ESP32, RPi, Jetson, RDK
Vendor: Yahboom
SKU: 6000400599
Regular price
$9.99 USD
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Tutorials:
Serial communication module
Yahboom USB Multi-functional Serial Port Module is a powerful and high-performance serial communication tool designed to simplify and accelerate embedded development and industrial debugging. It integrates three essential conversion modes into one compact board: USB to TTL, USB to RS485 and TTL to RS485, eliminating the need for multiple adapters. With support for 1.8V/3.3V/5V TTL level switching, RS485 hardware automatic direction switching circuit and high-speed operation up to 6Mbps (TTL) and 12Mbps (RS485), it ensures broad compatibility, reliable data transmission and a streamlined workflow for STM32, ESP32, Raspberry Pi, Jetson, RDK, and industrial PLC applications.
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Three-in-One Multi-Functional for Multiple Communication Needs
A single module replaces three separate adapters by supporting USB to TTL (for programming and debugging), USB to RS485 (for PC-to-industrial device communication), and TTL to RS485 (for microcontroller-to-industrial network connection). An onboard DIP switch allows quick and tool-free mode selection, saving time and reducing hardware clutter. -
Wide Voltage Compatibility & Automatic RS485 Switching
Features a selectable TTL voltage switch (1.8V/3.3V/5V) to safely interface with low-power chips, common MCUs, and SBCs like Raspberry Pi and Jetson. Its built-in hardware circuit automatically handles RS485 transmit/receive direction switching, eliminating complex software timing control and preventing data loss in industrial sensor, PLC, or robotic chassis communication. -
High-Speed & Reliable Data Transmission
Delivers stable performance with TTL baud rates up to 6Mbps and RS485 rates up to 12Mbps. Includes professional TTL hardware flow control (RTS/CTS) to prevent buffer overflow during high-speed data exchange. Onboard TVS and ESD protection, along with clear TX/RX/Power LEDs, ensures robust operation in electrically noisy environments. -
User-Friendly & Ready to Use
Designed for convenience with a reversible USB Type-C connector, an external 5V output (up to 300mA) to power connected devices, and included DuPont wires for immediate connection. Comprehensive tutorials and documentation are provided to help users get started quickly with various microcontrollers and industrial equipment.
1. Free Shipping Policy
Two shipping methods:
Yahboom offers free shipping on orders over $499 (before tax and duties), delivered by reliable carriers such as DHL, UPS, or FedEx.
Yahboom offers free standard shipping on orders(Small Items) over $50+, delivered by reliable carriers such as YunExpress.
Most orders arrive within 6 working days after dispatch.
2. Customs & Import Fees
All international shipments are subject to local customs regulations. Import duties, taxes, or other fees are charged by your country’s customs authority upon arrival.
Our shipping term is FOB Shenzhen, which means these fees, if any, are the customer’s responsibility. The shipping carriers will assist with the customs clearance process to ensure smooth delivery.
If a package is returned due to unpaid customs duties, any related return or reshipping fees will be deducted from your refund.
3. Order Processing Time
Orders are typically processed within 24 hours after placement and shipped the next business day.
Orders placed on weekends or public holidays will be shipped on the next working day.
Once shipped, you will receive a confirmation email with tracking information.
4. Shipment Carriers
Our current primary shipping carriers mainly are FedEx, UPS, DHL and YunExpress.
5. Shipping Restrictions
We are unable to ship to P.O. Boxes and APO/FPO at this time.
6. Refused Shipments
If you refuse the package to have your order returned to us, you will be responsible for the cost of the return shipping.
7. Delivery and Inspection
As our robots and development board kit are high-value items, please monitor the delivery schedule. In case you are not at home during the delivery window, we recommend contacting the courier in advance to arrange a suitable delivery time to ensure you are available to receive the package successfully.
Once you (or someone else on your behalf) collect the item, Yahboom will consider this your acceptance of the package, quantity, and product. To protect your rights, you are highly recommended to shoot a complete unboxing video. If you notice any damage to the packaging, items are missing or damaged, please contact Yahboom Support within 24 hours after you receive the package so that we can resolve the problem immediately.
8. FAQ
Q1: My package says delivered, but I didn’t receive it.
Sometimes tracking information can be incorrect, and packages are marked as delivered before they actually arrive. Your package will most likely be delivered within a few days, but it’s great to check with your shipping carrier for more information in the meantime! If you do not receive your order in a couple of days, please contact our support team within 3 days of the last tracking update, with your order number and tracking information.
Q2: What should I do if my order hasn’t been delivered?
Please note that business days do not include weekends or holidays. We recommend reaching out to the shipping carrier for more information on the status of your order. If your order has exceeded typical shipping times, please contact our Customer Support team.
Q3: My order tracking hasn't been updated for many days?
We're so sorry for the delay with your package! Although tracking does not indicate this, we can assure you that your package is still in transit to you. If the tracking wasn't updated for more than 3 days, please contact our Support team or shipping carrier directly for further help.
Q4: Will my package be charged delivery/customs fees?
All international orders are subject to customs and duty fees as defined by the country of import. Duties will be determined by the country of import of your order based off product value.
Stay Tuned:
Get product updates, tutorials, robotics news, and exclusive offers delivered to your inbox.
Tutorials:
Serial communication module
Yahboom USB Multi-functional Serial Port Module is a powerful and high-performance serial communication tool designed to simplify and accelerate embedded development and industrial debugging. It integrates three essential conversion modes into one compact board: USB to TTL, USB to RS485 and TTL to RS485, eliminating the need for multiple adapters. With support for 1.8V/3.3V/5V TTL level switching, RS485 hardware automatic direction switching circuit and high-speed operation up to 6Mbps (TTL) and 12Mbps (RS485), it ensures broad compatibility, reliable data transmission and a streamlined workflow for STM32, ESP32, Raspberry Pi, Jetson, RDK, and industrial PLC applications.
-
Three-in-One Multi-Functional for Multiple Communication Needs
A single module replaces three separate adapters by supporting USB to TTL (for programming and debugging), USB to RS485 (for PC-to-industrial device communication), and TTL to RS485 (for microcontroller-to-industrial network connection). An onboard DIP switch allows quick and tool-free mode selection, saving time and reducing hardware clutter. -
Wide Voltage Compatibility & Automatic RS485 Switching
Features a selectable TTL voltage switch (1.8V/3.3V/5V) to safely interface with low-power chips, common MCUs, and SBCs like Raspberry Pi and Jetson. Its built-in hardware circuit automatically handles RS485 transmit/receive direction switching, eliminating complex software timing control and preventing data loss in industrial sensor, PLC, or robotic chassis communication. -
High-Speed & Reliable Data Transmission
Delivers stable performance with TTL baud rates up to 6Mbps and RS485 rates up to 12Mbps. Includes professional TTL hardware flow control (RTS/CTS) to prevent buffer overflow during high-speed data exchange. Onboard TVS and ESD protection, along with clear TX/RX/Power LEDs, ensures robust operation in electrically noisy environments. -
User-Friendly & Ready to Use
Designed for convenience with a reversible USB Type-C connector, an external 5V output (up to 300mA) to power connected devices, and included DuPont wires for immediate connection. Comprehensive tutorials and documentation are provided to help users get started quickly with various microcontrollers and industrial equipment.
1. Free Shipping Policy
Two shipping methods:
Yahboom offers free shipping on orders over $499 (before tax and duties), delivered by reliable carriers such as DHL, UPS, or FedEx.
Yahboom offers free standard shipping on orders(Small Items) over $50+, delivered by reliable carriers such as YunExpress.
Most orders arrive within 6 working days after dispatch.
2. Customs & Import Fees
All international shipments are subject to local customs regulations. Import duties, taxes, or other fees are charged by your country’s customs authority upon arrival.
Our shipping term is FOB Shenzhen, which means these fees, if any, are the customer’s responsibility. The shipping carriers will assist with the customs clearance process to ensure smooth delivery.
If a package is returned due to unpaid customs duties, any related return or reshipping fees will be deducted from your refund.
3. Order Processing Time
Orders are typically processed within 24 hours after placement and shipped the next business day.
Orders placed on weekends or public holidays will be shipped on the next working day.
Once shipped, you will receive a confirmation email with tracking information.
4. Shipment Carriers
Our current primary shipping carriers mainly are FedEx, UPS, DHL and YunExpress.
5. Shipping Restrictions
We are unable to ship to P.O. Boxes and APO/FPO at this time.
6. Refused Shipments
If you refuse the package to have your order returned to us, you will be responsible for the cost of the return shipping.
7. Delivery and Inspection
As our robots and development board kit are high-value items, please monitor the delivery schedule. In case you are not at home during the delivery window, we recommend contacting the courier in advance to arrange a suitable delivery time to ensure you are available to receive the package successfully.
Once you (or someone else on your behalf) collect the item, Yahboom will consider this your acceptance of the package, quantity, and product. To protect your rights, you are highly recommended to shoot a complete unboxing video. If you notice any damage to the packaging, items are missing or damaged, please contact Yahboom Support within 24 hours after you receive the package so that we can resolve the problem immediately.
8. FAQ
Q1: My package says delivered, but I didn’t receive it.
Sometimes tracking information can be incorrect, and packages are marked as delivered before they actually arrive. Your package will most likely be delivered within a few days, but it’s great to check with your shipping carrier for more information in the meantime! If you do not receive your order in a couple of days, please contact our support team within 3 days of the last tracking update, with your order number and tracking information.
Q2: What should I do if my order hasn’t been delivered?
Please note that business days do not include weekends or holidays. We recommend reaching out to the shipping carrier for more information on the status of your order. If your order has exceeded typical shipping times, please contact our Customer Support team.
Q3: My order tracking hasn't been updated for many days?
We're so sorry for the delay with your package! Although tracking does not indicate this, we can assure you that your package is still in transit to you. If the tracking wasn't updated for more than 3 days, please contact our Support team or shipping carrier directly for further help.
Q4: Will my package be charged delivery/customs fees?
All international orders are subject to customs and duty fees as defined by the country of import. Duties will be determined by the country of import of your order based off product value.
Stay Tuned:
Get product updates, tutorials, robotics news, and exclusive offers delivered to your inbox.
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