ESP32 WiFi Bluetooth CP2102 Dev Board

This development board hosts the ESP32-WROOM-32 module — a highly integrated SoC combining dual-core 240 MHz processing, 4MB flash, 2.4 GHz WiFi (802.11 b/g/n) and Bluetooth 4.2 (BR/EDR + BLE) — on a black PCB with CP2102 USB-to-serial interface. Its physical footprint is approx. 52.5 × 26.5 mm and weight ~10 g. It requires only a micro-USB cable for power, programming and serial logging. All critical ESP32 peripherals are exposed: 34 GPIOs, 12-bit ADC channels, 8-bit DAC outputs, hardware PWM, multiple UART/I²C/SPI buses, touch sensors and ultra-low-power RTC. The board implements proper power filtering and crystal load matching to ensure stable RF performance and timing accuracy. Designed for real-world IoT development, it handles demanding tasks like TLS-secured MQTT publishing, BLE peripheral advertising with custom services, and concurrent WiFi station + softAP operation — all without external co-processors. Its open-source toolchain support removes vendor lock-in, while its compact size fits inside enclosures intended for consumer smart devices. Practical implementations include DIY smart irrigation controllers, BLE-configurable smart switches, WiFi-connected smoke/CO detectors with local alarm logic, and educational kits demonstrating wireless protocol interaction (e.g., BLE provisioning followed by WiFi data offload).