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AJMRTC Mini32 ESP32-WROV-ER-B development board is built with ESP32-WROV-ER-B wireless module and onboard PSRAM to handle memory-intensive tasks. It combines WiFi and Bluetooth functions on one single board, supporting IPv4, IPv6, SSL, TCP and UDP network protocols for versatile network programming. The dual-core 32-bit MCU delivers strong computing performance, and exposed GPIO pins allow easy connection with sensors, relays and displays. This mini-sized board is perfect for IoT device development, embedded network testing, wireless data transmission and electronic DIY maker projects.