Arduino “Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.” - www.arduino.cc Learning / coding : www.arduino.cc -> “Learning” and “Reference” categories Raspberry Pi The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard. It is a capable little computer which can be used in electronics projects, and for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video. We want to see it being used by kids all over the world to learn how computers work, how to manipulate the electronic world around them, and how to program Learning / coding : http://www.raspberrypi.org/resources/learn/ http://www.raspberrypi.org/resources/make/

1. RDL UNO-PI
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RDL UNO-PI

2. RDL UNO-PI
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Contents
Arduino ........................................................................................................................................... 3
Raspberry Pi.................................................................................................................................... 3
RDL UNO-PI.................................................................................................................................. 4
Overview......................................................................................................................................... 4
Features of RDL UNO-PI............................................................................................................... 5
Features of RDL-UNO ATMega328 Development Board............................................................. 5
RDL UNO-PI.................................................................................................................................. 6
BLOCK DIAGRAM....................................................................................................................... 7
RDL UNO-PI PINS ........................................................................................................................ 8
FRONT HEADERS (RDL-UNO ATMega328)AND PINS....................................................... 8
BACK HEADER(RASPBERRY PI B/B+.)............................................................................... 9
PORT SELECTION...................................................................................................................... 10
Raspberry Pi and RDL-UNO ATMega328............................................................................... 10
Raspberry PI B/B+ to External data line.................................................................................. 11
RDL-UNO ATMega328 to External data line.......................................................................... 12
Serial communication port selection(RX and TX) ....................................................................... 13
Raspberry Pi to RDL-UNO ATMega328 ................................................................................. 13
Raspberry PI B/B+ to External data line.................................................................................. 14
RDL-UNO ATMega328 to External data line.......................................................................... 15
Example for external data bus interface between raspberry pi and atmega 328........................... 16
STACK ON SHIELD ................................................................................................................... 17
RDL PI BREADBOARD ......................................................................................................... 17
RDL PI L298 MOTOR DRIVER ............................................................................................. 17
RDL PI XBEE........................................................................................................................... 18
RDL UNO GSM ....................................................................................................................... 18
RDL LCD UNO PI ................................................................................................................... 19
RDL GSM LCD UNO PI.......................................................................................................... 19
RPI RELAY SHIELD............................................................................................................... 20

3. RDL UNO-PI
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Arduino
“Arduino is an open-source electronics prototyping platform based on flexible, easy-to-
use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in
creating interactive objects or environments.” - www.arduino.cc
Learning / coding :
www.arduino.cc -> “Learning” and “Reference” categories
Raspberry Pi
The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard.
It is a capable little computer which can be used in electronics projects, and for many of the
things that your desktop PC does, like spreadsheets, word-processing and games. It also plays
high-definition video. We want to see it being used by kids all over the world to learn how
computers work, how to manipulate the electronic world around them, and how to program
Learning / coding :
http://www.raspberrypi.org/resources/learn/
http://www.raspberrypi.org/resources/make/

4. RDL UNO-PI
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RDL UNO-PI
It's quite common practice for an hobbyist/Electronic enthusiasts building an application on
Raspberry Pi and Arduino stacked together. RDL UNO PI which reduces the circuit complexity
between Raspberry and Arduino , RPI and Arduino shields can be stacked easily onto UNO-PI
headers.
One can easily handle PWM and Analog inputs by stack on RDL ATmega328 board
programmed with Arduino IDE. Connectivity made easier by selectable jumper settings, enables
the connection switching between RPI(GPIO pins),UNO(D0-D7) and External data(IO0-IO7)
with Bi-Directional voltage level converter(3.3v-5v).On board DC-DC option provides stable
current up to 2.5A and 3.3v-5v for the required circuit.
Overview
This guide contains all information related to the Uno-Pi board.
The Uno-Pi PCB incorporates a standard Arduino (RDL-UNO ATMega328 standard header) and
standard Raspberry Pi B/B+ headers.
The PCB provides a three jumper settings (for boards port selection )
 Raspberry Pi B/B+ to RDL-UNO ATMega328 and vice versa
 Raspberry PI B/B+ to external data line
 RDL-UNO ATMega328 to external data line
The PCB provides three jumper settings for serial communication
 Raspberry Pi B/B+ to RDL-UNO ATMega328 and vice versa
 Raspberry PI B/B+ to external data line
 RDL-UNO ATMega328 to external data line
The PCB Front design contains RDL-UNO ATMega328 Development Board headers(pins) and
back design contains Raspberry Pi B/B+ header so that Rasp fusion board will connected
between RDL-UNO ATMega328 Development Board and Raspberry Pi B/B+.

5. RDL UNO-PI
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Features of RDL UNO-PI
 Stackable UNO header for UNO Shields.
 8 bit Bidirectional Voltage Converter
 8 bit port selection
 8 Onboard Led's.
 DC-DC Power supply 2.5A
 supports for Raspberry PI B/B+
Features of RDL-UNO ATMega328 Development Board
 Atmega 328P- Controller
 Standard I/O interface for UNO shield
 Xbee foot print for RF/WIFI communication
 Inbuilt Micro SD memory card slot for data logging Application
 Programmable with Arduino Open Source
 Stackable UNO header.

6. RDL UNO-PI
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RDL UNO-PI
1. External Analog pins(ADC).*
2. DC input 12v.
3. Power supply DC 12v.
4. DC-DC 12v-5v 2.5A.
5. UNO Header.
6. Serial communication port selection(jumper setting) .
7. External I2C.
8. 8 bit Port selection (Raspberry Pi /Arduino/External data bus).
9. UNO Headers.
10. 8bit Status LEDS.
11. 8bit External I/O’s.
12. External SPI.
13. External Serial RX ,TX,GND.
* Works only with RDL UNO ATMEGA328 Stack on shields.

7. RDL UNO-PI
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BLOCK DIAGRAM

8. RDL UNO-PI
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RDL UNO-PI PINS
FRONT HEADERS (RDL-UNO ATMega328)AND PINS
FRONT HEADERS (RDL-UNO ATMega328)AND PINS

9. RDL UNO-PI
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BACK HEADER(RASPBERRY PI B/B+.)
BACK HEADER(RASPBERRY PI B/B+.)
DATA PINS UNO PI CONFIGERATION
Raspberry PI b/b+ Arduino UNO External I/0's
GPIO 17 D2 IO0
GPIO 18 D3 IO1
GPIO 27 D4 IO2
GPIO 22 D5 IO3
GPIO 23 D6 IO4
GPIO 24 D7 IO5
GPIO 25 D8 IO6
GPIO 4 D9 IO7

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PORT SELECTION
Raspberry Pi and RDL-UNO ATMega328
To connect Raspberry Pi to RDL-UNO ATMega328 and vice versa jumper settings for 8bit port
selection .jumpers must be connected to JP1 and JP2

11. RDL UNO-PI
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Raspberry PI B/B+ to External data line
To connect Raspberry PI B/B+ to External data line jumper settings for 8bit port selection
jumpers must be connected to JP2 and JP3

12. RDL UNO-PI
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RDL-UNO ATMega328 to External data line
To connect RDL-UNO ATMega328 to External data line jumper settings for 8bit port selection
jumpers must be connected to JP3 and JP4

13. RDL UNO-PI
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Serial communication port selection(RX and TX)
Raspberry Pi to RDL-UNO ATMega328
For serial communcation between Raspberry Pi to RDL-UNO ATMega328 jumpers must be
connected between A and R

14. RDL UNO-PI
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Raspberry PI B/B+ to External data line
For serial communcation between Raspberry PI B/B+ to External data line
jumpers must be connected between R and D

15. RDL UNO-PI
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RDL-UNO ATMega328 to External data line
For serial communcation between RDL-UNO ATMega328 to External data line
jumpers must be connected between R and D

16. RDL UNO-PI
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Example for external data bus interface between raspberry pi and
atmega 328
With reference to above diagram
 GPIO17 and GPIO18 pins(Raspberry Pi) is connected to digital data pins D2 and D3
(UNO Header) by setting two jumpers at JP1 and JP2
 GPIO27 and GPIO22 pins (Raspberry Pi) is connected to External data pins IO2 and IO3
by setting two jumpers at JP2 and JP3
 D4 and D5 pins (UNO Header) is connected to External data pins IO4 and IO5) by
setting two jumpers at JP3 and JP4

17. RDL UNO-PI
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STACK ON SHIELD
RDL PI BREADBOARD
RDL PI L298 MOTOR DRIVER

18. RDL UNO-PI
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RDL PI XBEE
RDL UNO GSM

19. RDL UNO-PI
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RDL LCD UNO PI
RDL GSM LCD UNO PI

20. RDL UNO-PI
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RPI RELAY SHIELD