{"product_id":"kincony-b4m-programmable-smart-mosfet-controller","title":"KinCony B4M 4-Channel Programmable Smart MOSFET Controller","description":"\u003cstyle\u003e\n  .size-guide-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-family: Arial, sans-serif;\n    font-size: 14px;\n    text-align: left;\n    background: white;\n  }\n  .size-guide-table th, \n  .size-guide-table td {\n    border: 1px solid #ddd;\n    padding: 10px;\n  }\n  .size-guide-table th {\n    background-color: #f5f5f5;\n    font-weight: bold;\n    text-align: center;\n  }\n  .size-guide-title {\n    font-size: 18px;\n    font-weight: bold;\n    margin-bottom: 10px;\n    text-align: left;\n  }\n\u003c\/style\u003e\n\u003cp\u003eDrive your DC devices with speed and precision using the B4M Controller. This 4-channel controller replaces traditional relays with MOSFET solid-state switches, making it the ideal choice for applications requiring silent operation, high-speed switching, or PWM control (like LED dimming or motor speed regulation). Powered by the ESP32-S3 and packed in the same compact enclosure as the B4, it offers a perfect blend of fast outputs and versatile inputs for modern automation projects.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eWhy You'll Love This Controller\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eMaster High-Speed DC Control\u003c\/strong\u003e\u003cbr\u003eGo beyond simple relays. The B4M’s MOSFET outputs let you dim LEDs, control motor speeds with PWM, and switch DC loads silently and without wear.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eAll-in-One Sensing \u0026amp; Control\u003cbr\u003e\u003c\/strong\u003eGet 4 fast outputs, 4 analog inputs (for sensors like light or current), and 4 digital inputs in one compact DIN-rail device. It's a complete DC automation hub.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eDual-Platform Simplicity\u003cbr\u003e\u003c\/strong\u003eUse the Tuya App for instant smartphone control, while seamlessly integrating with Home Assistant for advanced local automations. Both work perfectly together out-of-the-box.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eBuilt for Real-World Reliability\u003cbr\u003e\u003c\/strong\u003eFeatures robust opto-isolated digital inputs (good for long wire runs), a precise RTC, manual override buttons, and industrial communication options like RS-485.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eYour Project, Your Code\u003cbr\u003e\u003c\/strong\u003eWhether you prefer the easy KCS v3 firmware, ESPHome, Tasmota, or writing your own code in Arduino or ESP-IDF, the B4M gives you complete freedom.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eAmong other outstanding features are the following:\u003cbr\u003e\u003cbr\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Current MOSFETs\u003c\/strong\u003e: Each of the 4 outputs utilizes a 10A driver IC, providing robust control for a wide range of DC devices beyond just signal-level loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Network Connectivity\u003c\/strong\u003e: Equipped with both Wi-Fi and 100Mbps Ethernet for flexible and resilient network integration, ensuring your controller stays connected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Time-Stamping \u0026amp; Logging\u003c\/strong\u003e: Includes a high-precision DS3231 RTC chip (with battery backup) for accurate time-based events and a microSD card slot for logging data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Analog \u0026amp; Digital Inputs\u003c\/strong\u003e: Features a 16-bit ADS1115 ADC for accurate analog readings (0-5V and 4-20mA) alongside 4 opto-isolated digital inputs, all configurable for your specific sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable I\/O\u003c\/strong\u003e: Offers 4x 1-Wire GPIOs (with pull-up resistors) for adding temperature sensors and 3x Free GPIOs (direct to ESP32) for maximum flexibility. An I2C bus extender and RS-485 port are also included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Override Buttons\u003c\/strong\u003e: Includes physical buttons for each MOSFET output, allowing you to turn loads on or off manually even if the software or network is down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications:\u003cbr\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 405.187px;\" class=\"size-guide-table\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003cth style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eCategory\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eSpecification\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eCore Processor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eESP32-S3-WROOM-1U (N16R8 Dual-core 32-bit)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.5px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 40.5px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eDigital Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 40.5px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e4× MOSFET (Max 10A per channel)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.5208px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003ePrecision Analog Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e4 channels via 16-bit ADC (2× 0-5V, 2× 4-20mA)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.5208px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eIsolated Digital Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e4× Dry Contact Inputs (Opto-isolated, Up to 500 meters of cable)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.5208px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eWireless Connectivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e2.4 GHz Wi-Fi, Bluetooth 5.0, Tuya\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.5208px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eWired Connectivity \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e100M Ethernet (RJ45) IPv4\/IPv6, RS485, USB-C, I²C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 40.5208px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eControl \u0026amp; Logic I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 40.5208px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e3× 1-Wire GPIO (Pull-up resistor), 4× free GPIO (No pull-up resistor, directly connected to ESP32 pins)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eRTC\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eDS3231 High-Precision Chip with Battery Socket\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eDisplay\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eSSD1306 I²C OLED Screen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eStorage Interface\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eSD Card Slot with microSD Support\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003ePower Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eDC 12-24V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.2604px;\"\u003e\n\u003ctd style=\"width: 22.9649%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%; height: 20.2604px;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e122 × 83 × 59 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.9649%;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003eMounting\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.4889%;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, San Francisco, Segoe UI, Roboto, Helvetica Neue, sans-serif;\"\u003e35 mm DIN rail (EN 60715)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e","brand":"KinCony","offers":[{"title":"Default Title","offer_id":53898719625588,"sku":"B4M","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0333\/2212\/files\/N1_1dd78778-75e3-4f11-9300-5a4604703276.webp?v=1770725288","url":"https:\/\/www.feedcurrent.com\/products\/kincony-b4m-programmable-smart-mosfet-controller","provider":"FeedCurrent","version":"1.0","type":"link"}