DRSAT ESP-WROOM-32 ESSP132 ESSP1D Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Audio IDE ESP-32 Development Board (CH9102 driver chip)2.4GHz Dual Mode WiFi + Bluetooth Development BoardUltra-Low power Support LWIP protocol, Free to airSupportThree Modes: AP, STA, and AP+STAESP32 is a safe, The ESP32 integrated with Antenna switches, RF Balun, power amplifiers, low-noise amplifiers, filters, and management modules, and the entire solution occupies the least area of PCB. 2.4 GHz Wi-Fi plus Bluetooth dual-mode chip, with TSMC Ultra-low power consumption 40nm technology, power dissipation performance and RF performance is the best, safe and reliable, easy to extend to a variety of applications.Package Included:1 * HiLetgo ESP-WROOM-32D Development BoardIf it cann't get bluetooth working. Using Node32 as the Board selection. To reference GPIO pins in code use just the number, for example "digitalWrite(13, HIGH)" sets GPIO13 high. The built-in LED to GPIO2.