ESP32 Module

ESP32 Module

Our series of ESP32 multifunction expansion boards are high-performance, Arduino-compatible IoT control modules built based on the mature NodeMCU ESP-32S core, equipped with onboard ESP-WROOM-32E and WROVE-E chips. Integrating WiFi and Bluetooth dual wireless communication, these modules support Ethernet network transmission, RS485 Modbus protocol, WEB local control, MQTT remote communication and HTTP signal transmission, covering mainstream IoT communication methods for diverse industrial and civilian application demands. We provide multiple cus tomized hardware specifications to suit different application scenarios, including DC12V and DC24V power supply versions with complete digital and analog IO configurations. The product lineup covers 2AO+2AI+4DI+4DO and 2AO+8AI+8DI+8DO models, supporting standard 4-20mA current signals and 0-10V voltage signals, which can realize accurate analog signal acquisition and output, as well as stable digital signal switching control. Equipped with high-stability relay output functions, the modules support intelligent switch control and simple PLC operation. In addition, our product range includes professional DIN rail-mounted expansion boards and 3.3V to 5V bidirectional level converter modules, featuring automatic LvTTL and TTL IO signal switching to solve signal matching problems in different circuit systems. With standardized mounting design, rich extended interfaces and stable operational performance, these ESP32 expansion boards are widely applicable to smart home systems, building automation, agricultural greenhouse monitoring, industrial remote IO control, DIY maker projects and teaching experimental prototyping. Cus tom OEM and ODM services are available to meet cus tomers’ personalized project and bulk procurement requirements. For more details, please contact us through email: sales@hyhc.com.cn