Waveshare DVK512 Raspberry Pi Expansion Evaluation Board with Various Interfaces Designed for Raspberry A+/B+/2 B/3 B
1.
2.1. Pinheaders for connecting with the RPi
3.2. UART interface: easily connects to UART modules such as RS232, RS485, USB TO UART, etc.
4.3. 8I/Os interface: easily connects to modules controlled by I/Os, such as 8 Push Buttons, Logic Level Converter, Mix Board, etc.
5.4. SPI interface: easily connects to SPI modules such as AT45DBXX Dataflash, L3G4200D Board, etc.
6.5. I2C interface: easily connects to I2C modules such as PCF8574 Expansion Board, PCF8563 RTC Board, LSM303DLHC Board, etc.
7.6. Character LCD interface: for connecting character LCDs like LCD1602
8.7. USB connector: USB TO UART, supported by onboard converter CP2102
9.8. Power indicator
10.9. User LEDs
11.1. User Keys
12.11. Potentiometer: for LCD1602 contrast adjustment
13.12. RTC battery holder
14.13. PCF8563: onboard RTC chip
15.14. 32.768K crystal: RTC crystal
16.15. CP2102: onboard USB TO UART chip, for debugging
17.16. CP2102 jumper
18.17. RTC jumper
19.18. User LEDs jumper
20.19. User Keys jumper
For jumpers above:
short the jumper to connect to I/Os used in example code
open the jumper to connect to other custom pins via jumper wires
123456