* Estimated delivery times start from the date of shipment, excluding processing time.
* Actual delivery times may vary due to holidays, weather conditions, or customs delays.
Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.
Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.
Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.
1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment.Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471
Introduction:This main control board LUNO BLE4.0 uses LGT8F328P as the core main control and carries a wireless serial communication low-power 4.2 Bluetooth function IC. It is compatible with ArduinoUNO and is compatible with BLEUNO and is used in the ArduinoIDE compilation environment.Supports DIY mode and provides a wonderful experience when using it.The maximum main frequency of the internal crystal oscillator is 32M.LGT8F328P is compatible with the AVR instruction set and has better performance than ATMEGA328P.Add USB fuse to protect computer port from damage.Provide a professional technical team and complete website information to serve you at any time.What is LGT8F328P?LGT8F328P is a chip compatible with AVR and Atmega328P instruction sets. After loading the Arduinosoftware support package, you can use the ArduinoIDE for programming. Usage methods and 99.9% application scenarios can replace the Atmega328P chip.LGT8F328P parameters:1. LGT8F328P enhances the 8-bit RISC core and supports 16-bit digital operation expansion. In the 1.8 V-5.5 V operating range, the center frequency can reach 32MHz;2. Internal LGT8F328P 32K bytes of FLASH program memory, 2K bytes of data SRAM, integrated control logicsimulates FLASH as EEPROM. Part of the program FLASH can be divided into data FLASH space according to application needs, and access to similar EEPROM interfaces is achieved through the EEPROM controller;3. LGT8F328P integrates a large number of analog peripherals, including 12-bit ADC, programmable gain differential amplifier, and high-precision internal reference voltage 1.024/2.048/4.096V. 8-bit DAC and high-speed analog comparator; at the same time, LGT8F328P also integrates a commonly used digital interface controller, supporting multi-channel complementary PWM output and dead zone control;4. The architectural design of LGT8F328P is relatively new, and its peripheral functions are much stronger than Atmega328P. In particular, the encryption capabilities of this program far exceed those of the Atmega328P.5. Portable line serial communication low-power 4.2 Bluetooth IC; communication interface adopts UART serial port, receiving sensitivity -96dBM, communication distance up to about 45m, transmitting power -20dBM-4dBM, baud rate 9600~115200. The serial port transparent transmission rate reaches The overall working performance of 4KB/S far exceeds that of CC254
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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