描述

樹莓派 Raspberry Pi – SPI 23s17 x8 – 128 GPIO Board

Serial Peripheral Interface (SPI)

128 GPIO input / output

一、產品特色 

1. J16 Mini USB 5V input for board  Power source

2.  J3 2P Terminal Block  5V input for board  Power source

3. J4 jumper select Power source from Raspberry Pi P1 or External

4. 1.6A Polyswitch Fuse for 5V V+ protect

5  JP4    U1 Port A       JP3     U1 Port B

6. JP7    U2 Port A        JP8    U2 Port B

7. JP2    U3 Port A       JP1     U3 Port B

8. JP5    U4 Port A        JP6    U4 Port B

9. JP11  U5 Port A       JP12    U5 Port B

10. JP13   U6 Port A       JP14   U6 Port B

11. JP16   U7 Port A       JP15   U7 Port B

12. JP10   U8 Port A       JP9     U8 Port B

13. U1 (000)  23s17 -1  Port A,B    U2 (001)   23s17-2 Port A,B

14. U3 (010)  23s17 -3  Port A,B    U4 (011)   23s17-4 Port A,B

15. U5 (100)  23s17 -1  Port A,B    U6 (101)   23s17-2 Port A,B

16. U7 (110)  23s17 -3  Port A,B    U8 (111)   23s17-4 Port A,B

17. J18 Rs-Pi V2  GPIO output

23s17-8 – 128 GPIO board plug in Raspberry Pi

二、new output test program    23s17-8port-s-v103.py

三、Scratch驅動應用範例  Detail

U1 to U4 spi 23s17 address 40,42,44,46
U5 to U8 spi 23s17 address 48,4a,4c,4e

40 –> 1    42 –> 2    44 –> 3     46 –> 4
48 –> 5    4a –> 6    4c –> 7     4e –> 8

Command “sp”+ “address(1-8)” + “a” +”bit(1 to 8)” for Port A
Command “sp”+ “address(1-8)” + “b” +”bit(1 to 8)” for Port B
Command “bits”+ “address(1-8)” + “a” +”bit(8 to 1)” for Port A
Command “bits”+ “address(1-8)” + “b” +”bit(8 to 1)” for Port B

sp5b7 –> spi address 5 Port B bit 7 ON/OFF
sp7b4 –> spi address 7 Port B bit 4 ON/OFF
bits2b01010101 –> address 2 port B from bit 8 to 11
output –> 01010101
bits8a01010101 –> address 8 port A from bit 8 to 1
output –> 01010101
bits2aoff –> address 2 Port A all OFF/clear

四、範例程式下載

23s17-cs0.py

n23s17-cs0.py  

23s17-8port-s-v103.py

23s17-8port-s-v104.py

五、產品內容

1x Rs-Pi SPI 23s17-8 – 128 GPIO board

1x User Manual