描述
49. 樹莓派 Raspberry Pi SPI AD/DA & I2C 1-Wire 擴充板 (V2-P5 )(10bit A/D, 8-12bit D/A)
一、產品特色
1. Support Raspberry Pi-V2 P5 , got extra 4 GPIO 28,29,30,31
The 1-Wire port is based around a DS2482-100 I2C to 1-Wire bridge device. The DS2482-100 provides bi-directional protocol conversion between the I2C port on the Raspberry Pi and any attached 1-Wire® slave devices. An ESD Protection Diode is used to protect the Board and Raspberry Pi from electrostatic spikes on the 1-Wire port. Connections to the 1-Wire port can be made through pin on the PCB.
2. J2 J3 Step motor connector J2 (5V,D0,D1,D2,D3) J3(5V,D4,D5,D6,D7)
can use Step motor (28BYJ-48 5VDC)48 5VDC)48 5VDC)48 5VDC)8 5VDC)
3. J20 5V,GND, D0, D1,D2,D3,D4,D5,D6,D7 OUTPUT
4. U5 ULN2803 8 darlington transistor array
5. J17 RS-Pi-V2 GPIO output
6. J19 i2c output (GND,5V,SDA,SCL)
7. JP4 choose 5V input from Mini USB Port J7 or RS-Pi 5V
8. J7 Mini USB 5V input
9. U6 MCP3002 SPI Interface 10 bit Analog-to-Digital Converter
output J11 (Vcc, AD0, GND, AD1) Datasheet
10. U11 MCP4802 SPI Interface 8 bit Digital-to-Analog Converter
or U11 MCP4802 SPI Interface 10 bit Digital-to-Analog Converter
or U11 MCP4802 SPI Interface 12 bit Digital-to-Analog Converter
output JP1 (DA0,GND,DA1,GND) Datasheet
You can choose 8 bit , 10bit or 12 bit DAC ,
11. U15 DS2482-100 I2C to 1-Wire bridge device Datasheet
J22 1-wire Port pin 1 – pin4
(5V, GND, OW (1-Wire Data, ESD Protected). RT (1-Wire Return/Ground ,ESC protected)
12. U16 DS9503P ESD protection diode
13. D8,D9, D10, D11 GPIO 28,29,30.31 output LED
14. U5 uln2803 use RS-Pi pin 11,12,13,15,16,18,22,7 as GPIO 0 to GPIO7
15. MCP3002 use 10k ohm Trimpot for INPUT DEMO
16. MCP4802 OUTPUT DEMO
17. You also can use gertboard program atod & dtoa in this board
18. 18 -> DS2482-100 I2C 1-Wire bridge chip
/28.7E1CC8030000 – Connect & Detect DALLAS 18B20P TEMP Sensor
cat temperature — 22.312 & 32.125
二、範例程式下載
1step.py for 1 Step Motor on J2
2step.py for 2 Step Motor on J2 J3
2step-v2.py for Rs-Pi V2 2 Step Motor on J2 J3
三、產品內容
1x Rs-Pi 2803-AD-DA – i2c-1-Wire board
1x 2×4 (8P)2.54mm pitch header for Raspberry Pi P5 connector
1x manual
商品評價
目前沒有評價。