Please note: this product requires software development, not directly connected to the power supply can be used, before purchasing, please know, whether it will be software development/operation, this product also requires a downloader/development board, cable, debugging the required burning tools need to be purchased separately products haven't been updated yet Parameter introduction: Module Model: WT32-S3-WROVER-N16R8 Screen size: 4 inch IPS full screen Resolution: 480x480, RGB565 Screen driver IC: GC9503V Touch Driver IC: FT6336U Sensor: Temperature and humidity sensing, SHT20 RS485: using automatic transceiver 485 circuitry Material: plastic+metal colour: Package Contents: 1 x 86 box central control touch panel Only the above package content, other products are not included. Note: Light reflection 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.