Wide range of applicationsSmall sizeSimple to useSupport DC5-60V power supplyIt is suitable for ESP32 secondary development and learning, smart home wireless control and other occasions.Onboard mature and stable ESP32-WROOM-32E module, large-capacity 4M Byte Flash;The I/O port and UART program download port of ESP32 module are all led out, which is convenient for secondary development;Power supply voltage DC7-60V;Onboard ESP32 module IO0 programmable button and reset button;ESP32 supports the use of for IDE development tools, providing reference programs in the for development environment;On-board 2-way 5V relay, output switch signal, suitable for controlling the load whose working voltage is within AC250V/DC30V;1 programmable LED and relay indicator onboard.Colour: as shownMaterial: PC+metalPackage Contents:1 * Development board2 * Double row needles1 * Single row needle1 * Single line capOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.