Manualshelf

Specification Sheet

ManualsBrandsyouyeetoo ManualsComputers & AccessoriesFirefly development board with 4GB DDR and 16GB eMMC based on the RK3399 six-core chip platform, dual core Cortex-A72 & quad core Cortex-A53, Support Android 7.1 , Linux and HDMI In
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T-Chip technology
Room 2101, No.1 Hongyu Building, #57 Zhongshan 4RD, East District, Zhongshan, Guangdong. Tel :(+86)186 8811 7175
- 18 -
4.20 UART
NO.
Definition
Attribute
Description
1
GND
GND
GND
2
RXD
Output
RXD signal
3
TXD
Output
TXD signal
4
VCC3V3_UART
Power output
Output 3.3V
4.21 RS485
NO.
Definition
Attribute
Description
1
GND
GND
GND
2
RS485 A
Output
Output RS485 A signal
3
RS485 B
Output
Output RS485 B signal
4
VCC3V3_UART
Power output
Output 3.3V
4.22 UART
NO.
Definition
Attribute
Description
1
GND
GND
GND
2
RX_C
Output
RX_C signal
3
TX_C
Output
TX_C signal
4
VCC3V3_UART
Power output
Output 3.3V
4.23 RS232
NO.
Definition
Attribute
Description
1
GND
GND
GND
2
RS232_RX
Output
RX signal
3
RS232_TX
Output
TX signal
4
VCC3V3_UART
Power output
Output 3.3V