Power Supply BK7238 On Board WB3S Single Relay Board WIFI+BLE Iot Development /

Description

Product Description AC90-250V/DC7-12V/USB5V Power Supply BK7238 On Board WB3S WIFI Bluetooth Single Relay Board WIFI+BLE Iot Development Relay Board BK7238 single relay development board is equipped with WB3S WiFi Bluetooth module, I/O port is fully led out, support AC90-250V/DC7-12V/USB 5V and other power supply modes. WB3S is a low power embedded Wi-Fi+ Bluetooth LE dual protocol module developed by Doodle Intelligence. It consists of a highly integrated radio frequency chip BK7238 and a small number of peripheral devices, built-in Wi-Fi network protocol stack and rich library functions. BK7238 is a low-power 32-bit MCU, 1T1R WLAN, up to 120MHz main frequency, built-in 256K SRAM, 2Mbyte flash and rich peripheral resources. WB3S is an RTOS platform that integrates all Wi-Fi MAC and TCP/IP libraries. Based on these, users can develop embedded Wi-Fi products that meet their needs. Support AT, SDK, Arduino development. We not only provide the traditional AT firmware, but also provide Arduino code for the board, set up STA+AP mode, as well as Bluetooth distribution network, Bluetooth control relay, LED. It can also connect to the customer MQTT server to achieve remote control, data reporting and other functions. At the same time, the SDK code based on rt-thread is provided to support Airkiss wechat distribution network. Specifications: Built-in low-power 32-bit CPU that can double as an application processor The main frequency is 120MHz Operating voltage: 3.0V-3.6V Peripheral: 19xGPIO, 2xUART, 5xADC, 2XI2C, 1xSPI, 6xPWM Wi-Fi connectivity 802.11b /g/n Channel 1-14@2.4GHz Supports WEP, WPA/WPA2, WPA/WPA2 PSK (AES), and WPA3 security mechanisms Maximum output power of +16dBm in 802.11b mode Support for SmartConfig (including Android and ios devices) Onboard PCB antenna, antenna gain 1.5dBi Operating temperature: -40C to 85°C Bluetooth LE Bluetooth Low Energy (V4.2) Maximum output power +6dBm Onboard PCB antenna, antenna gain 1.5dBi Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow 1mm-1cm differences due to manual measurement. Package includes: 1x Single Relay Board About Us Payment Shipping Terms Contact Us Welcome to our store! We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including video game, health & beauty, phone accessories, computers accessories, camera & camcorder,car accessories, Clothing accessories, games, toys & hobbies, jewelry, antique & craftwork. High product quality,reasonable prices, excellent customer service and a reliable credit standing is our tenet. We accept PayPal only. Payment must be received in 7 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Item will be shipped out within 48 hours upon receipt of your payment. The shipping time details, please read the shipping and delivery together with the price. We ship to your PayPal address. Please make sure your PayPal address is correct before you pay. Considering the cost of business and easy shipping, usually the item is packed in retail packaging. Country Shipping Time Working Days + Saturday + Sunday 5-7 8-15 16-20 21-25 26-30 >31 United States Rate(item arrived) 5.1% 50.1% 29.6% 10.5% 4.7% Refund United Kingdom Rate(item arrived) 9.9% 63.2% 19.1% 3.4% 4.4% Refund Australia Rate(item arrived) 21.4% 50.0% 14.3% 7.2% 7.1% Refund France Rate(item arrived) 10.5% 28.6% 43.8% 10.1% 7.0% Refund Germany Rate(item arrived) 11.1% 22.2% 30.3% 20.9% 15.5% Refund Canada Rate(item arrived) 0.0% 47.1% 31.4% 17.6% 3.9% Refund Spain Rate(item arrived) 3.7% 24.1% 48.2% 13.8% 10.2% Refund If this item is defective upon receipt, customer has up to 14 days from date of receipt for exchange of a new one.But buyers should be pay for the shipping charge for returning. We care about our valued customers, and are always willing to work things out. If you have any problems, please e-mail us immediately. If you have any questions, please feel free to send eBay message to us, our service specialists 24 Hours a Day, 7 Days a Week (maybe there is some delay in weekends). Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem. Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly. About Us Welcome to our store! We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including video game, health & beauty, phone accessories, computers accessories, camera & camcorder,car accessories, Clothing accessories, games, toys & hobbies, jewelry, antique & craftwork. High product quality,reasonable prices, excellent customer service and a reliable credit standing is our tenet. Payment We accept PayPal only. Payment must be received in 7 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Item will be shipped out within 48 hours upon receipt of your payment. The shipping time details, please read the shipping and delivery together with the price. We ship to your PayPal address. Please make sure your PayPal address is correct before you pay. Considering the cost of business and easy shipping, usually the item is packed in retail packaging. Country Shipping Time Working Days + Saturday + Sunday 5-7 8-15 16-20 21-25 26-30 >31 United States Rate(item arrived) 5.1% 50.1% 29.6% 10.5% 4.7% Refund United Kingdom Rate(item arrived) 9.9% 63.2% 19.1% 3.4% 4.4% Refund Australia Rate(item arrived) 21.4% 50.0% 14.3% 7.2% 7.1% Refund France Rate(item arrived) 10.5% 28.6% 43.8% 10.1% 7.0% Refund Germany Rate(item arrived) 11.1% 22.2% 30.3% 20.9% 15.5% Refund Canada Rate(item arrived) 0.0% 47.1% 31.4% 17.6% 3.9% Refund Spain Rate(item arrived) 3.7% 24.1% 48.2% 13.8% 10.2% Refund Terms If this item is defective upon receipt, customer has up to 14 days from date of receipt for exchange of a new one.But buyers should be pay for the shipping charge for returning. We care about our valued customers, and are always willing to work things out. If you have any problems, please e-mail us immediately. Contact Us If you have any questions, please feel free to send eBay message to us, our service specialists 24 Hours a Day, 7 Days a Week (maybe there is some delay in weekends). Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem. Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly. powered by