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Description
BDD RT38B01 UHF DTU TRANSCEIVERThe RT38B01 is a UHF DTU (Data Terminal Unit) RS485 BUS RF Serial Port UART Transceiver Module, Operating in the 433 458MHz Frequency Range. RS485 BUS RF Serial Port UART Transceiver Module Overview Module features Long distance wireless transmission (up to 500 meters in open area , 10kbps baud rate in the air ) Operating frequency range ( 433 458. 5MHz , up to 255 communication channels) Maximum 100mW ( 20dBm ) transmit power ( 10 levels of power can
The RT38B01 is a UHF DTU (Data Terminal Unit) RS485 BUS RF Serial Port UART Transceiver Module, Operating in the 433-458MHz Frequency Range.
RS485 BUS RF Serial Port UART Transceiver Module
Overview
Module features
Long-distance wireless transmission (up to 500 meters in open area , 10kbps baud rate in the air )
Operating frequency range ( 433 - 458.5MHz , up to 255 communication channels)
Maximum 100mW ( 20dBm ) transmit power ( 10 levels of power can be set )
Built-in MCU, use serial port to communicate with external devices
Send 31 bytes at a time
The module can support one-to-one, one-to-many transparent transmission communication through ID setting Changing the baud rate of a different serial port will synchronously change the rate at which data is sent over the air. ( 10kbps-100kbps)
Set the ''critical three minutes''. The module can send and receive data normally within three minutes of power-on. You can send the AT command '' AT+ENABLE=1 '' to make the module enter the AT command state for parameter setting. There is only this reserved word in these three minutes. After more than three minutes, you will not be able to enter the AT command mode, you can only send and receive data, '' AT+ENABLE=1'' will also be sent out as data, there are no reserved words at this time.
Long-distance wireless transmission (up to 500 meters in open area , 10kbps baud rate in the air )
Operating frequency range ( 433 - 458.5MHz , up to 255 communication channels)
Maximum 100mW ( 20dBm ) transmit power ( 10 levels of power can be set )
Built-in MCU, use serial port to communicate with external devices
Send 31 bytes at a time
The module can support one-to-one, one-to-many transparent transmission communication through ID setting Changing the baud rate of a different serial port will synchronously change the rate at which data is sent over the air. ( 10kbps-100kbps)
Set the ''critical three minutes''. The module can send and receive data normally within three minutes of power-on. You can send the AT command '' AT+ENABLE=1 '' to make the module enter the AT command state for parameter setting. There is only this reserved word in these three minutes. After more than three minutes, you will not be able to enter the AT command mode, you can only send and receive data, '' AT+ENABLE=1'' will also be sent out as data, there are no reserved words at this time.
How to use (>=2pcs):
- 1 2PCS,Module 1 and Module 2 send data to each other.
- 2 >=3PCS,One as master device, the other as will be as slave device.
the way they work as well as wired RS485 bus. Master device transmit data, Slave devices all receive data.Any slave device transmit data, master device and the other slave devices can receive .When ever only allowed one device (master or slave) to transmit data.
Features
Application
- IP PTZ Camera
- Modbus modbus temperature sensor
- LED Controller
- R4D3C32 N4D8B08 N4D8C12 RS485 Relay
- Remote control, remote measurement system;
- Wireless meter ;
- Smart Home,Home Automation ,Wiser Home;
- Access control ;
- Smart meter
- Identification system ;
- Data collection;
- IT household appliance ;
- Intelligence household appliance;
- Baby monitoring system;
- Thermometer
Specifications
- Working voltage : 4.5V-5.5V;
- Interface : RS485(5V GND A+ B-)
- Frequency : 433MHz
- Transmit power : -40~+20dBm;
- Receiver sensitivity : -114dBm;
- Operating temperature : -25℃~+75℃;
- Transparent transmission mode baud rate : 1200 2400,4800,9600(Default),19200;
- Open ground Transmission distance : 500M
- Size(without antenna) : 74x24x16mm
- Weight(without antenna): 18g
Additional Information
| Device | Transceiver Module |
| Type | RS485 | BUS | RF Serial Port | UART |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Bag is gorgeous! Rich shades of color!
Color: 1-shell Plus Brown, Color: 1-shell Plus Brown
I was expecting to return because of some of the feedback. Some said it is cheaply made, no lining, small, stiff. It is larger than I expected which is perfect for me and not that stiff, more sturdy and durable is what I call it. The shading on this one is like a mauve on the outside and towards the middle is brown and in the very middle, a dark olive green. The lining is really nice espresso brown with 2 smaller pockets, one large middle zipper and one zip pocket on rear wall. I haven't removed the plastic off the handles yet and off the hanging gold circle. Comes with the long strap for crossbody so exceeded every expectation for me. I feel that once it is filled and breaks in a little, it will look richer and richer. This was worth every penny for me and probably going to be my favorite every day bag!
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Reviewed in the United States on January 15, 2025
★★★★★ 5
The combination of colors
Color: 1-color Blue Blue
Cute, well made and attractive
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Reviewed in the United States on May 12, 2026
★★★★★ 5
super deal !!
Color: 1-colorful Blue
i got this purse on a special deal pricing for 19.99 & wow what a steal...........its a well made purse........vibrant color....its more a matte finish instead of shiny.........and if ur familiar with brahman this would be the small duxbury style...........im so glad it was the smaller one because the large duxbury is just awkwardly too big for petite gals like me lol.............very happy with my purchase & so glad i found this company............im an avid brahman fan as well & when i saw styles that brahman discontinued & now this company has them i was very happy :) these are excellent dupes but keep in mind they are dupes & price range is super so lining may be a bit thinner but not a deal breaker for me - lining was fine enough to hold up & instead of leather they use vegan leather - but dont be scared lol the vegan leather they use is very heavy duty & will hold up............im not a fan of vegan leather but i made an exception for this company............please keep making this style as well as the other styles u have - im a super fan !!! (ps- the small duxbury is still in use by brahman - its not discontinued - others styles on this companies websites are discontinued by brahman - so if u dont want to pay over 200.00 then this is an excellent option )
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Reviewed in the United States on December 11, 2024
★★★★★ 4
Well made, stylish handbag and a eye-catching color
Color: 1-bright Orange
I am very happy with the look and quality of this handbag; the fabric inside, and especially the deep, rich orange color I ordered - it does not appear to be available right now. I am glad to have chosen a solid color over some of the varied tones that appear harsh and cheap. I have not used the shoulder strap yet; the handles are comfortable to carry on the arm. I generally buy leather purses only so it is a pleasant surprise to be enjoying this vegan material, which looks more expensive than the price I paid.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
beautiful bag
Color: 1-colorful Blue
marc jacobs doesnt make bags like this anymore but this bag is still so cute i was happy to get this satchel and i love the tote bag if yall wanna bag just get this one its so cute i could fit a tablet i pad in there its so roomy i put everything in the bag and its stylish it looks darker in person but thats ok girl
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Reviewed in the United States on January 22, 2026