The KinCony B24 is a versatile smart controller designed for complex automation tasks, powered by the ESP32-S3-WROOM-1U processor. It features 24 relay outputs capable of handling up to 250V AC and 7A each, alongside 24 optocoupler-isolated dry contact inputs that can support cable lengths up to 500 meters. For precise monitoring, it includes a 16-bit ADC providing four analog input channels, supporting both 0-5V DC and 4-20mA signals, as well as seven 1-Wire GPIO channels with integrated pull-up resistors. Connectivity is comprehensive, offering Ethernet, WiFi, Bluetooth, RS485, and USB-C, ensuring it fits into almost any network environment. An onboard OLED display provides immediate feedback on IP addresses and connection status, while a DS3231 high-precision RTC and an SPI-based SD card slot allow for reliable timekeeping and data logging. The device is housed in a compact enclosure measuring 239mm by 83mm by 59mm, designed for secure installation on a DIN rail and powered by a 12V DC supply. This controller is built for users who need deep integration with ecosystems like Home Assistant, Tuya, Alexa, Google Home, or Apple HomeKit. It supports a wide range of firmware including KCS v3, ESPHome, Tasmota, and Arduino IDE, making it a flexible choice for developers and hobbyists creating professional-grade smart home or industrial control systems.