Features:

1.Onboard mature and stable ESP32-WROOM-32E module,large capacity 4M Byte Flash
2.The I/O port of the ESP32 module and the UART program download port are all drawn out to facilitate secondary development
3.Onboard AC-DC switching power supply module,power supply mode supports AC 90-250V
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.Onboard 1way 5V relay,output switching signal,suitable for controlling the load within AC 250V/DC 30V
7.Onboard power indicator,1 programmable LED and relay indicator

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.