KT6368A Dual-Mode Pure Data Chip Support Bluetooth 5.1 BLE / 2.1 SPP Function Transparent Transmission AT Controller for Arduino

$14.99
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    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

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    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
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    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

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    Airmail and Airmail Registered Area Estimated Delivery Time
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    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022

    Returns

    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388
    Israel

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

    Refunds

    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

    Exceptions

    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

    Questions

    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888
    sales@alexnld.com

     


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Product introduction:

KT6368A is a dual-mode pure data chip that supports BLE of Bluetooth 5.1 and SPP of Bluetooth 2.1 .The highlight of the chip is the ultra-small size, and simple pass-through and serial AT control functions. lt greatly reduces the development difficulty and cost of embedded Bluetooth in other products.
KT6368A supports the connection of mobile phones for two-way data interaction, commonly known as ‘Bluetooth through transmission’. Through the UART interface, support common AT instructions, such as: set name, set address, set baud rate, and so on.

Product parameters:

Recommended voltage of 3.3V (2.2V~3.4V)
Instant starting current is 26mA. Stabilize for about a second, then drop to ab out 4mA.
The chip gives the UART a cache of 1 K bytes, and the default baud rate is 115200.
For BLE speed, we haven’t done a complete test. If you need high speed trans mission, please test by yourself.
The transmission of SPP is recommended to be limited to a single time of no more than 512 bytes in a packet of data, and the transmission rate is recommended to be measured by yourself.
BLE transmission rates vary from phone to phone version. So the rate can not be unified description, the user’s own measurement.

Package included:

1 x KT6368A dual-mode pure data chip

Q&A

Question 1:
What is KT6368A? What function does it have? What are the features? What seen ario does it apply to?
Answer:
1. KT6368A chip belongs to Bluetooth chip and supports BLE of Bluetooth 5.1 version. The 2.1 version of SPP is also supported.
2. KT6368A chip supports the connection to mobile phone for two-way data int eraction, commonly known as ‘Bluetooth through transmission’. UART interface = =supports common AT instructions, such as: set name, set address, set baud rate, and so on. 
3. KT6368A chip is characterized by low cost and simple use.
4. KT6368A chip, suitable for pure data communication occasions, such as: cast omers develop their own APP, WeChat small program and so on.
5. At present, the program of KT6368A is only made from the slave version, which can only be connected to the mobile phone.

Question 2:
What is the supply voltage of KT6368A? What’s the current? What’s the rate of pass-through BLE and SPP?
Answer:
1. Recommended voltage of 3.3V [2.2V–3.4V].
2. The current at the start moment is 26mA.Stabilize for about a second, then dr op to about 4mA.
3. The UART cache given by the chip is 1K bytes, and the default baud rate is 115200.
4. For BLE speed, we haven’t done a complete test. If you need high-speed trans mission, please test by yourself.
5. SPP transmission, it is recommended that a single time is not more than 512 bytes of a package of data, the transmission rate is recommended to measure the ir own.
6. BLE transmission rate, due to different mobile versions, will be different. So t he rate can not be unified description, the user’s own measurement.

Question 3:
How to distinguish between AT instruction and serial pass-through data? How d o I know if Bluetooth is connected?
Answer:
1. AT command is only valid when Bluetooth is not connected.
2. As long as the Bluetooth connection is successful, it will enter through trans mission, and the AT command is invalid.
3. This depends on the STA of the module. Unconnected output low level. Connec t successfully and output high level.

Question 4:
How do you know if the chip is working properly? And the serial connection is normal?
Answer:
1. At the moment when the chip is powered on, pin 2 will output a high level for 1 second, and then immediately pull it down. So after 1 indicator light to see t he status.
2. The serial port on the chip is bound to return information. Note is certain, if not received, indicating that the serial port has a problem.

Question 5:
Does it support changing UUID, Bluetooth name and Bluetooth MACaddress?
Answer:
1. Support to modify Bluetooth name, and Bluetooth MACaddress.
2. Of course, it also supports AT instruction reading. The UUID does not support customers to modify it by themselves for the time being, and it will be added la ter.

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