Product Features:
1. Mature and stable onboard ESP32-WROOM-32E module with large capacity 4M Byte Flash
2. The I/O ports and UART program download ports of the ESP32 module are all exported, making it convenient for secondary development
3. On board AC-DC switch power supply module, power supply mode supports AC90-250V
4. onboard ESP32 module RST reset button and IO0 programmable button
5. ESP32 supports the use of Arduino IDE development tools and provides reference programs in the Arduino development environment;
6. One 5V relay on board, output switch signal, suitable for controlling loads with working voltage of AC 250V/DC 30V or less
7. On board power indicator light, 1 programmable LED and relay indicator light

Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shipment.

We can accept customized package to meet different requirements:
1.Every item will separately pack into plastic bag,component,module can be packed in anti static bag.
2.Some fragile products such as the display screen can be packed in bubble bag.
3.Some large machines can be packed in wooden cases.
4.We can label JH code or client's code on package so that customers can check easily after receive goods.