10pcs X RXB6 433Mhz Superheterodyne Wireless Receiver Module With antenna Free Shipping
43.19 $
ID: 71307
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38P!!! ESP32 ESP-32 Development Board Wireless WiFi Bluetooth Dual Core CP2104 Filters Power Management Module 2.4GHz Newest
4.2 (5 votes) | 84 orders
Price:
US $
18.14
/ piece
38P!!!
**Reject huge profits, large quantity and excellent price!**
1. The on-board CP2102 stable USB to TTL chip ensures the normal communication of the serial port.
2. Support automatic download, no need to manually switch the download and operation mode.
3. Gold sinking process
4. Support development on Windows system (Cygwin and MSYS32 simulation environment) and Linux system
5. Support ESP32 - Arduino
ESP-Wroom-32 is a versatile Wi-Fi+BT+BLE MCU module that is powerful and versatile for low-power sensor networks and demanding tasks such as speech encoding, audio streaming and MP3 decoding.
The core of this module is the ESP32-D0WDQ6 chip *, which is expandable and adaptive. The two CPU cores can be individually controlled or powered on. The clock frequency is adjusted from 80 MHz to 240 MHz. The user can power off the CPU and use the low-power coprocessor to continuously monitor whether a peripheral state change or some analog quantity exceeds a threshold. The ESP32 also incorporates a rich range of peripherals, including capacitive touch sensors, Hall sensors, low-noise sensor amplifiers, SD card interfaces, Ethernet interfaces, high-speed SDIO/SPI, UART, I2S and I2C, and more.
CPU and memory
The ESP32-D0WDQ6 contains two low-power XTENSA ® 32-bit LX6 MCU. On-chip storage includes:
• 448 KB of ROM for program startup and kernel function calls.
• 520 KB on-chip SRAM for data and instruction storage.
• 8 KB of SRAM in the RTC, or RTC slow memory, can be accessed by the coprocessor in deep-sleep mode.
• 8 KB of SRAM in the RTC, or RTC fast memory, can be used for data storage and accessed by the main CPU when the RTC is started in deep-sleep mode.
• 1 kbit of EFUSE, where 256 bits are system specific (MAC address and chip Settings); The remaining 768 bits are reserved for user applications, including Flash encryption and chip ID.
• ESP-Wroom-32 is integrated with 4MB SPIFlash
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- Compatible Audio & Video Equipment Style: Earphones & Headphones,Speakers,Amplifier,Player,Digital-to-Analog Converter (DAC),Professional Audio Equipment,Stage Equipment,Recording Equipment,Display Equipment
- Type: Bluetooth,WIFI,IR
- Origin: Mainland China
- Certification: NONE
SHIPPING AND DELIVERY
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
How do you ship packages?
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some location we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:
| Location | *Estimated Shipping Time |
|---|---|
| United States | 10-30 Business days |
| Canada, Europe | 10-30 Business days |
| Australia, New Zealand | 10-30 Business days |
| Central & South America | 15-30 Business days |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
REFUNDS & RETURNS POLICY
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.
If you did not receive the product within the guaranteed time(60 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve receive you may request a refund but you must return the item at your expense and the item must be unused.
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of CNTRONIC Consumer Electronics Retailer (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of cntronic.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (60 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
LARGE ORDER DEALS
Thank you for your interest doing business with us!
If you would like to get a discounted price for your large purchase orders, fill in the required blanks along with your email address, the product Item ID # and/or the link of the item that you want to order, item quantity (minimum of 30 pieces), shipping country and payment method is required. We will contact you with a discounted price as soon as we receive your inquiry.
