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PCBA Design:
WST12 ,Android smart pcba mainly supports multiple size and resolutions screens.It is suitable for smart display terminal,video terminal, industial automatic terminal,such as ultra-thin advertising machine,smart self-service terminal,intelligent retail terminal, etc.
2. PCBA Overview
WST12 uses Amlogic T972 chipset, CPU Quad-core Cortex-A55, with frequency up to 1.9 GHz;GPU Mali-G31.It supports 4k,H.265 hard decoding,android 9.0 OS. It supports multi-video output and input with Rich peripheral interfaces, and supports multiple peripheral extensions with ultra-low power consumption and high performance.It is the best choice for business display and new commercial advertising.

3. PCBA Features
on board HDMI in / v-by-one / LVDS and other input and output interfaces.
it supports ethernet, WiFi and 4G access, and supports mini PCI-E 3g/4g modules
IOT network card or ordinary data card.
rich expansion interfaces. 5 USB interfaces (3 pins, 2 standard USB 2.0), 4 removable
extended serial port (1 RS232 serial port, 1 3.3V TTL serial port, 1 485 serial port,
1 1.8V or 3.3V or 5V optional level 4-wire TTL serial port), multi-channel GPIO
And ADC interface, which can meet the access requirements of various peripherals in the market.
high definition: up to 8K* 4K@24fps Decoding and various LVDS / v-by-one,
LCD display screen and cutting screen of the interface etc.
Android system,system call interface API reference code, perfect support customer upper application app development.
perfect support IR, optical, capacitance, resistance, touch screen and other touch screens.
easy operation, simple and convenient operation and maintenance.
4. Appearance and Interface Diagram

Hardware | |
WST12 | |
pcba size | 165x95mm |
CPU/GPU/O.S | Amlogic T972 chipset, CPU Quad-core Cortex-A55, with frequency up to 1.9 GHz/GPU Mali-G31/Android 9.0 |
memory | Standard 2G(1G/4G optional) |
flash | Standard 8G(8G/32G/64G/128Goptional) |
ROM | 2KB EEPROM |
LVDS ouput | 1 single/dual channel, drive 50/60Hz LCD screen |
V-By-One ouput | Support 4kx2k@60Hz |
Backlight interface |
12V,Enable,PWM dimmer; |
Area Backlight | SPI control |
HDMI input | HDMI 2.1 4k*2k@60Hz input |
Audio and video output | supports left and right channel output, with built-in dual 4 Ω /15w |
Headset | support |
MIC Input |
one channel MIC input and reserved 4 digital MIC inputs for PDM array |
USB2.0 | 1*USB OTG A,1*USB2.0 A,3 HURB->USB |
Serial port |
4 serial ports ( 1* 232,1*TTL,1 485,1 UART) |
Other expansion interfaces |
Multi-channel IO port, ADC and button interface |
WIFI,BT | WIFI2.4G(2.4G/5G dualband optional) bt4.2 |
Ethernet | 1*10M/100M |
RTC |
Timer switch |
OS upgrade | support TF,USB and OTA |
KEY&IR | need the relative function boards |
TP/touch screen ports | 1 channel I²C |












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