Ai-Thinker's A9 Development Boards / Development Kits RoHS are designed for industries looking for powerful development solutions for their applications. These boards feature the latest technologies, such as Bluetooth 5.0 and dual-band Wi-Fi (2.4GHz + 5GHz). The board gives developers access to a wide range of features, such as a Wi-Fi module, an Ethernet port, a microSD card slot, an LCD, and several GPIOs. It has an ARM Cortex-M3 processor and runs on the latest version of FreeRTOS. The board also has a 2-layer PCB, supporting up to +20 dBm power for increased range and signal strength. Developers can use the board to program and debug their applications using the accompanying development software, including the GNU C Compiler, Eclipse, Python, and Arduino IDE.