G3128-7S Serial Screen
G3128-7S Serial Screen, adopts Rexchip RK3128 quad-core chip program, supports Google Android 4.4 or higher system. Supports decoding of mainstream audio and video formats and pictures. Directly integrated motherboard + display + TP. with standard serial output, support video playback. For devices that require networking can be used directly! In the medical equipment, beauty treatment products, industrial control equipment, health care equipment can be directly developed applications to use!
Product Features
◆cost-effective. For the need to connect the networking interaction of the device, you can directly through the serial port of and this product is directly connected to improve the efficiency of the development, while reducing the investment.
◆High stability. In the whole hardware design fully considered the complexity of the environment! The power supply, the reliability of the system has been specifically optimized.
◆high integration. G3128-7S serial screen integrates Ethernet (optional), wifi, bluetooth, amplifier, SD card, infrared interface (optional), backlight power supply and so on, which greatly simplifies the design of the whole machine. The ultra-thin motherboard design can make the whole machine design more beautiful.
◆high expandability. Three USB ports, four serial ports, can expand more peripheral devices.
Basic Hardware Specifications
| Product Diagram | |
| CPU | Rexchip RK3128, Quad-Core Cortex-A7 |
| main frequency | 1.5 GHz |
| Memory | DDR3 1G |
| OS | Android 4.4 |
| Built-in storage capacity | eMMC 4GB/8GB (optional) |
| Display | RGB interface 7 inch 1024x600 or 800*480 |
| Touch screen | I2C interface Capacitive screen G+G |
| Network | With RJ45 interface, support Ethernet.(optional) |
| With WIFI module, support Wi-Fi 802.11b/g/n protocol. | |
| interface device | Support infrared interface |
| Support USB camera | |
| 1 USB OTG | |
| 2 USB ports/4 serial ports optional. | |
| 2-in-1 TF card, support up to 32GB | |
| D class oversized built-in speaker, 2W*2 4R | |
| Support microphone | |
| Audio | MP3, WMA, WAV, APE, FLAC, AAC, OGG, M4A, 3GPP format |
| Video | Support H.264, VP8, RV, WMV, AVS, H.263, MPEG4 and other video formats 1080P decoding, YouTube and other online video, up to 1080P, HTML5 video playback, Flash 10.1 playback |
| Picture | Support JPG, BMP, PNG and other image formats and support rotate/slideshow/picture zoom function. |
PCBA Structure
electronic
| power connector (12V IN) | |||
| No. | Definition | Attribute | Description |
| 1 | +12V | Power Positive | 12V Power Input |
| 2 | +12V | Power Positive | 12V Power Input |
| 3 | NC | Not used | Not used |
| 4 | TX_1 | Standard 232 level data line | ±(3~15)V |
| 5 | RX_1 | Standard 232 level data line | ±(3~15)V |
| 6 | RX_1 | Standard 232 level data line | ±(3~15)V |
| 7 | GND | ground | Power supply ground |
| 8 | GND | ground | Power supply ground |
| serial port interface | |||
| No. | Definition | Attribute | Description |
| 1 | RX_4 | Standard TTL Level Data Line | Serial Input 3.3V |
| 2 | TX_4 | Standard TTL Level Data Line | Serial Output 3.3V |
| 3 | RX_3 | Standard TTL Level Data Line | Serial Input 3.3V |
| 4 | TX_3 | Standard TTL Level Data Line | Serial Output 3.3V |
| 5 | UR_VCC | Serial Power Supply | 3.3V |
| 6 | GND | Ground Power Supply Ground | 3.3V |
| 7 | RX_2 | Standard TTL Level Data Line | Serial Input 3.3V |
| 8 | TX_2 | Standard TTL Level Data Line | Serial Output 3.3V |
