{"product_id":"esp32-smart-controller-b2-2ch-relay","title":"ESP32 Smart Controller – B2 (2CH Relay)","description":"\u003cp\u003eKinCony B2 ESP32 smart controller based on ESP32-S3-WROOM-1U (N16R8) wifi chip. Support 2 channel relay output, 4 channel 1-wire GPIOs, 4 channel ADS1115 16bit analog input ports. One SD card using SPI bus. B2 include DS3231 high precision RTC clock chip. LCD display will show wifi and ethernet IP address and Tuya connection state. B2 have I2C bus extender and RS485 port. B2 support use SIM7600E 4G module. You can write any code by Arduino IDE \/ MicroPython \/ ESP-IDF development tool to ESP32 module. We will supply Arduino \/ ESP-IDF demo code for different samples. Everyone can modify and change the code for your own smart home automation system project. it support use by ESPHome for home assistant or tasmota firmware for smart home automation DIY. B2 use KCS v3 firmware, it support home assistant auto discovery function by MQTT, so without write any config code (zero code) for home assistant. KCS v3 support KinCony cloud service (official shop customer free 2 years), remote monitor and control device by webpage in anywhere. KCS v3 support KinCony board integrate to Loxone Miniserver. Support Apple HomeKit for Siri.\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-2.jpg\" alt=\"esp32 relay\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel No. KinCony B2\u003c\/strong\u003e\u003cbr\u003eDescription: KinCony 2 Channel ESP32-S3 Smart Relay Controller – B2\u003cbr\u003ePower supply: 12-24V DC\u003cbr\u003eProcessor: ESP32-S3-WROOM-1U (N16R8)\u003cbr\u003eSize: 124mm*83mm*56mm\u003cbr\u003einterfaces: Ethernet(RJ45)-LAN 100Mbps IPv4\/IPv6,WiFi,RS485,Bluetooth,USB-C,LCD,I2C,Tuya Module, 4G SIM7600\u003cbr\u003eRTC: DS3231 high precision chip (battery socket on PCB)\u003cbr\u003eSD Card: SPI bus\u003cbr\u003eInstallation method: DIN RAIL\u003cbr\u003eLCD: SSD1306 I2C display\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutputs:\u003c\/strong\u003e\u003cbr\u003e2CH relay Outputs, every relay use by MAX AC270V\/10A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInputs:\u003c\/strong\u003e\u003cbr\u003eADS1115 16bit ADC: 2CH analog input DC0-5V (A1,A2) 2CH analog input 4-20mA (A3,A4)\u003cbr\u003e2CH dry contact inputs (optocoupler isolation, long distance circuit for MAX 500 meters cable)\u003cbr\u003e3 buttons: 1:ESP32 Reset 2:ESP32 Download 3:Tuya config\u003cbr\u003e1-Wire GPIO: 4CH (with pull-up resistance on PCB)\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-1.jpg\" alt=\"esp32 relay\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003esoftware solution:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1. download KinCony KCS v3 firmware, so that work with multi protocol: HTTP, MQTT, TCP, RS485 modbus, Tuya app, config OUTPUT for “momentary” and “interlock” group functions. use Tuya mobile phone app directly, support voice control by Alexa and Google home speaker directly. if you want local voice control without internet, you can add KinCony AS voice assistant. “KCS” support IFTTT function work locally without internet. It also support use by KinCony cloud server. KCS v3 support home assistant auto discovery function by MQTT, so without any config file for home assistant.\u003c\/p\u003e\n\u003cp\u003e2. download firmware by ESPHome, integrate to home assistant or use by web service.\u003c\/p\u003e\n\u003cp\u003e3. download tasmota firmware.\u003c\/p\u003e\n\u003cp\u003e4. write your own arudino or ESP-IDF code for your own requirements.\u003c\/p\u003e\n\u003cp\u003e5. It is recommended to use home assistant and Tuya mobile phone app at the same time. So that remote control by internet using Tuya app, local control by LAN using home assistant app.\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/KinCony-B2-smart-controller-diagram.jpg\" alt=\"esp32 block diagram\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder bundles:\u003c\/strong\u003e\u003cbr\u003eBundle A: B2\u003cbr\u003eBundle B: B2 + USB-C cable+ DC12V power supply\u003cbr\u003eBundle C: B2 + USB-C cable+ DC12V power supply + SIM7600E 4G module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelated technical information\u003c\/strong\u003e\u003cbr\u003e———————————\u003cbr\u003eESP32 I\/O pin define: \u003ca href=\"https:\/\/www.kincony.com\/forum\/showthread.php?tid=9683\"\u003ehttps:\/\/www.kincony.com\/forum\/showthread.php?tid=9683\u003c\/a\u003e\u003cbr\u003econfig yaml file for ESPHome: \u003ca href=\"https:\/\/www.kincony.com\/forum\/showthread.php?tid=9684\"\u003ehttps:\/\/www.kincony.com\/forum\/showthread.php?tid=9684\u003c\/a\u003e\u003cbr\u003eESPHome official supportted list:\u003cbr\u003earduino demo source code: \u003ca href=\"https:\/\/www.kincony.com\/forum\/forumdisplay.php?fid=117\"\u003ehttps:\/\/www.kincony.com\/forum\/forumdisplay.php?fid=117\u003c\/a\u003e\u003cbr\u003eKCS v3 firmware online guide: \u003ca href=\"https:\/\/www.kincony.com\/how-to-use-kcsv3-firmware-esp32-board.html\"\u003ehttps:\/\/www.kincony.com\/how-to-use-kcsv3-firmware-esp32-board.html\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003emore details of photo:\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-3.jpg\" alt=\"esphome relay\"\u003e\u003cbr\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-4.jpg\" alt=\"esphome relay board\"\u003e\u003cbr\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-5.jpg\" alt=\"esp32 relay\"\u003e\u003cbr\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-6.jpg\" alt=\"esp32s3 relay\"\u003e\u003cbr\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-7.jpg\" alt=\"esphome switch\"\u003e\u003c\/p\u003e\n\u003cp\u003emanual control buttons work without software, if controller is broken, also can turn on\/off output manually.\u003cbr\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-8.jpg\" alt=\"esphome 2ch relay\"\u003e\u003cbr\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-9.jpg\" alt=\"mqtt relay\"\u003e\u003c\/p\u003e\n\u003cp\u003esupport install KinCony SIM7600 series 4G module.\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/SIM7600\/sim7600-1_pix400.jpg\" alt=\"sim7600e\" width=\"400\" height=\"400\"\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/SIM7600\/SIM7600E-SIM-install-0_pix400.jpg\" alt=\"sim7600e\" width=\"400\" height=\"400\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/SIM7600\/SIM7600E-SIM-install-2_pix400.jpg\" alt=\"sim7600 sim\" width=\"400\" height=\"400\"\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/SIM7600\/SIM7600E-SIM-install-3_pix400.jpg\" alt=\"sim7600 module\" width=\"400\" height=\"400\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-4G-1.jpg\" alt=\"4g relay\"\u003e\u003c\/p\u003e\n\u003cp\u003eSIM card slot.\u003cbr\u003e\u003cimg decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-4G-2.jpg\" alt=\"sim relay\"\u003e\u003c\/p\u003e\n\u003cp\u003einsert mobile phone SIM card. (NANO)\u003cbr\u003e\u003cimg decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-4G-3.jpg\" alt=\"sim card relay\"\u003e\u003cbr\u003e\u003cimg decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-sim7600-1.jpg\" alt=\"sim7600e relay\"\u003e\u003cbr\u003e\u003cimg decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-sim7600-2.jpg\" alt=\"sim7600g relay\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium\" src=\"https:\/\/www.kincony.com\/images\/B2\/B2-10.JPG\" alt=\"home assistant relay\"\u003e\u003c\/p\u003e\n\u003cp\u003erelay load max AC277V 10A\u003c\/p\u003e","brand":"KinCony IoT","offers":[{"title":"Bundle A: B2","offer_id":48158902747301,"sku":null,"price":80.0,"currency_code":"USD","in_stock":true},{"title":"Bundle B: B2 + USB-C cable+ DC12V power supply","offer_id":48158902780069,"sku":null,"price":90.0,"currency_code":"USD","in_stock":true},{"title":"Bundle C: B2 + USB-C cable+ DC12V power supply + SIM7600E 4G module","offer_id":48158902812837,"sku":null,"price":133.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/4859\/6133\/files\/1_390a12fe-8afc-49c0-aeeb-814de41697ba.jpg?v=1786972770","url":"https:\/\/shop.kincony.com\/products\/esp32-smart-controller-b2-2ch-relay","provider":"KinCony IoT","version":"1.0","type":"link"}