ESP32 IO development extension module programming for engineering techniciansFunction:1. The expansion board is also equipped with a power switch control switch.2. Developers can connect peripherals according to their needs, which is convenient and fast.3. When using the development board for programming and debugging, the standard headers on both sides can make your operation more concise and convenient.4. Suitable for the working, learning and development of students, engineers, technicians, factory workers, DIY enthusiasts, electronics enthusiasts, etc.5. Made of high-quality PCB material, which makes it durable and has high reliability. Specification: Item Type: Development Board Material: PCB Purpose: Suitable for the working, learning and development of students, engineers, technicians, factories, DIY enthusiasts, electronics enthusiasts, etc. .Microcontroller: ESP-WROOM-32 Module USB Serial Port Chip: CP2102-GM R Supply Voltage: DC7-12 V Working Current: 60mA Maximum Power: 0.3W Operating Temperature: -25-65 WiFi Mode: Station/SoftAP/SoftAP + Station/P2P WiFi Protocol: 802.11 b/g/n/e/i (802.11n, speed up to 150Mbps) WiFi frequency range: 2.4 GHz -2.5 GHz Bluetooth protocol: compliant with Bluetooth v4.2 BR/EDR and BLEL standards Package list: 1 x module