描述

一、 i2c Bus Detect  Status

 

18 -> DS2482-100    48  -> TMP102       68 -> RTC DS1307        50  -> 24c32

60    ->  MCP4725     49-> ADS1015

二、use eeprog 0.7.6 can read/write  for  24c32 or 24cxx

三、MCP4725 12bit Digital-to-Analog Converter 

1. MCP4725 demo 9 bit sinewave.py at address “60”

2. MCP4725 demo sinewave.py result

四、ADS1015 12bit  Analog-to-Digital Converter

demo 12 bit 4 channel input ads1015-49.py at address “49”

/28.7E1CC8030000    –  Connect   &  Detect  DALLAS 18B20P   TEMP Sensor

cat temperature   —    22.312    &  32.125

五、產品特色

1. U8 RTC DS1307 with CR1220 Battery    Datasheet

2. U7 TMP102 Temperature Sensor      Datasheet

3. U9 24C32  32Kbit  EEPROM    JP10 Disable Jumper     Datasheet

4. U6 MCP4725 12bit Digital-to-Analog Converter ,   Datasheet

JP11 (AOUT, GND)  JP1 Disable Jumper

5. U11 ADS1015 12bit  Analog-to-Digital Converter ,   Datasheet

J7 INPUT (AIN0, AIN1,AIN2,AIN3,GND,3V3)       JP12 Disable Jumper

6, J5 (5V, GND,SCL,SDL)  I2C output

7. U15 DS2482-100  I2C to 1-Wire bridge device

J22 1-wire Port pin 1 – pin4

(5V,GND, OW (1-Wire Data, ESD Protected). RT (1-Wire Return/Ground ,ESC protected)

8. U16 DS9503P 1-Wire ESD protection diode

9.  U2 – USB 7 Ports HUB chipset

J1 (JP3)  USB HUB upper port signal input from Rs-Pi

10. J13  Mini USB 5V input for USB Hub, you don’t need plug 5V , the USB Hub already use 5V  from Raspberry Pi (P1 pin2), if your USB device need more power,  then you can plug-in 5V in this port.

11. J11  for RS-Pi V2 GPIO connector (got 4 more GPIO pin)

12. Adafruit Occidentalis v0.2 image support the TMP102 and RTC DS1307 , ADS1015 , MCP4725

六、範例程式下載

ads1015

七、產品內容

1x Rs-Pi 7 USB  HUB & I2C & 1-Wire board

1x  USB to MINI USB hub input cable

1x CR1220 3V Battery

1x User Manual