Raspberry Pi internal 4 Ports USB
Hub & AD/DA &
Multi-function I2C Board
(RTC-DS1307, Temperature Sensor-TMP102, D/A ,A/D ,
EEPROM,
MCP23008, FT232RL, ZT3243)
size small than Raspberry Pi with Multi-Function
Why Raspberry Pi
suggest you need use External USB Hub with power
Adapter?
because they
design use 140mA fuse in each USB port, "140mA",
but USB spec need
500mA for each port,
that's why lots
people have power issue for USB port.
in Rs-pi V2 they
remove the Fuse design, and yo don't have any
protect from Rs-Pi USB port.
What
you can do
?
1. modify
Rs-pi Fuse power circuit.
2. Use
external USB Hub with power adapater
Our RS-Pi
internal USB hub with 1.5A polyswitch fuse and use
USB signal (D+, D-) from
Rs-pi only, not use power
from USB port and use Raspberry
Pi 5V from P1 pin2 , so if you have good quality "more than 1.2A" DC 5V adapter , then you can use
our Rs-Pi USB hub no
problem.
if your device
need more power, we also can provide extra 5V
input(J13 mini USB B).
The Rs-Pi V1
board if you not modify the fuse circuit, you may
need plug in extra Dc 5V from
(J13 mini USB B), for the Rs-Pi V2
no need for this input.
Raspberry Pi internal 4 Ports USB
Hub & AD/DA &
Multi-function I2C Board
(RTC-DS1307, Temperature Sensor-TMP102, D/A ,A/D ,
EEPROM,
MCP23008, FT232RL, ZT3243)
for Rs-Pi V2
i2c in bus 1
" i2cdetect -y 1 " for i2c bus scan
for Rs-Pi V1
i2c in bus 0
" i2cdetect -y 0 " for i2c bus scan
i2c Bus Detect Status
20 -> MCP23008
48 -> TMP102
68 -> RTC DS1307 50
-> 24c32
60
-> MCP4725
49-> ADS1015
use eeprog 0.7.6 can read/write for 24c32
or 24cxx
23008
8 bit GPIO use 23008.py can set
each bit output high or low
MCP4725 12bit Digital-to-Analog Converter
* demo 9 bit
output sinewave.py at address "60"
MCP4725 demo 9 bit sinewave.py at address "60"
mcp4725 demo sinewave.py result
* ADS1015
12bit Analog-to-Digital Converter
demo 12 bit 4 channel input
ads1015-49.py at address "49"
MCP4725
& ADS1015 Demo
ADS1015
use 4
trimpot 10K
OHM for 4 channel Analog input
MCP4725 output
to USB Digital Oscilloscope
Change R28 ,R32
Jumper you can
change USB-TTL
or USB-RS232 function
* USB-TTL console
function, access you Rs-Pi by a normal USB A to USB
Mini B cable
* USB-RS232 make
your PC or Mac or Rs-Pi have full function 9 pin
RS232 Port
Spec Detail
1. U5 MCP23008 J2 (GP0 ~ GP7 ) OUTPUT &
GP0,GP1,GP2,GP3,GP,GP5,GP6,GP7 (8 LED OUTPUT )
R20,R21,R22 (A0,A1,A2) address select
JP12 Disable Jumper
Datasheet
2. U8 RTC DS1307 with CR1220 Battery
Datasheet
3. U7 TMP102 Temperature Sensor
Datasheet
4. U9 24C32 32Kbit EEPROM JP10 Disable Jumper
Datasheet
5. U6 MCP4725 12bit Digital-to-Analog Converter ,
Datasheet
JP11 (AOUT,
GND) JP1 Disable Jumper
6. U11 ADS1015 12bit Analog-to-Digital Converter ,
Datasheet
J7 INPUT (AIN0, AIN1,AIN2,AIN3,GND,3V3) JP12 Disable Jumper
7, J5 (5V, GND,SCL,SDL) J6(3v3,GND,SCL,SDL) I2C output
8. U2 - USB 4 Ports HUB chipset
J1 (JP3) USB HUB upper
port signal input from Rs-Pi
9.
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.
10 .
U10
FT232RL J4 USB input from PC for USB to RS232
console port, just connect
a cable
(5pin mini USB-B
to A USB ) then you have this console function.
FT232RL Datasheet
U12
ZT32433
RS232 Transceiver Driver , You can have DB9
full 9pin RS232
output
from
PC or Mac USB cable input or
from Rs-Pi HUB Port for input
ZT3243 Datasheet
11 . J11 for RS-Pi V2 GPIO connector
(got 4 more GPIO pin)
Adafruit
Occidentalis v0.2
image support the
TMP102 and RTC DS1307 , ADS1015 ,
MCP4725
Download
sample program
mcp23008.py
output higi or low to each bit for MCP23008
in address "20"
23008-20.py
for LED chaser program Rs-Pi V1 board
23008-1-20.py
for LED chaser program Rs-Pi V2 board
ads1015 sample program
Download
User manual
Full 9pin DB9 RS232 com port output with
30cm length cable
Rs-Pi USB
Hub connect 4 USB devices (keyboard, Mouse, 3G
dongle, Wifi Dongle)
doesn't need extra 5V power input, The Rs-Pi
RS232 console cable connect to on board
RS232 port, the USB console port connect to PC
USB port.USB port.
FT232RL driver loaded when System Boot
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package Content
1x Rs-Pi USB HUB & I2C w/ USB
console board
1x
USB to MINI USB hub input cable
1x 2.0mm
pitch 2x5 to DB9 30cm cable
1x CR1220 3V
Battery
1x Manual |
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