The Nano 5 features include 6 analog inputs, 2 analog outputs, switches, LEDs, PWM outputs, interrupts, real-time clock, GPIO pins, timers, and communication interfaces. It uses an ADuC842 microcontroller with program memory, flash memory, and RAM. Interfaces include connections to a Raspberry Pi via UART, I2C, and power supply, an LCD display via I2C, an IR receiver, and a rotary encoder. The document provides details on the analog and digital pin functions, interfaces for external components like the IR receiver, rotary encoder, LCD, and Raspberry Pi, and examples of basic applications using the features.

1. Nano 5 Features
a.- 6 analog inputs (ADCs, 12 bits, 2.5V)
b.- 2 Analog outputs (DAC, 12 bits, 2.5V)
c.- 1 Switch
d.- 1 Led
e.- 2 PWMs
f.- 2 Interrupts inputs
g.- 1 Real Time Clock (PCF2127T)
h.- 8 GPIO (digital)
i.- 4 GPIO (Open collector, digital)
j.- 2 Relays
k.- 2 Timer Counters
l.- Communication: UART, I2C and SPI
m.- Power: USB/Raspberry Pi
n.- Microconverter model: ADuC842, 16MHz
o.- Memory:
Program: 64K x 8
Flash: 4K x 8
User RAM : 256 x 8
User XRAM: 2K x 8
Nano 5 Interfaces
a.- Raspberry Pi: UART, I2C, Power Supply
b.- LCD: 4 lines, 20 columns (NHD‐0420D3Z‐NSW‐BBW‐V3, I2C Mode)
c.- IR Receiver Module: IRM-3638N3 or compatible
d.- Rotary encoder (24 steps)

2. Communication and GPIO Connector
Description:
[P0+, P0-]: P0 Port, 8 bits, digital, Input-Output
P2- : P2 Port, 4 bits, digital, input-Output, Open Drain
Power: +5V, selected from USB or Raspberry Pi (in picture, USB)
UART Connection: Normally closed (in picture). Open to use UART directly from Microconverter
UART Selection:
USB: For programming and use PC as terminal
Raspberry Pi: UART communication with Raspberry Pi
P2.3 P0.7
P2.2 P0.6
P2.1 P0.5
P2.0 P0.4
P0.3 /SS
P0.2 INT1/MISO
P0.1 SDA/MOSI
P0.0 SCL
+5V GND
TX_UART
RX_UART
UART Selection
USB
Raspberry Pi
Power
USB
Raspberry Pi
UART Connection
I2C, SPI
P0+
P0-
P2-
UART

3. Analog and Digital Functions
Description:
IR Selection: Connected to use IR Remote Controller (INT0 interrupt is used)
+5V GND
ADC1 RESET (HIGH)
ADC2 /RESET (LOW)
ADC3 PWM0 (P2.6)
ADC4 PWM1 (P2.7)
ADC6 T0 (P3.4)
ADC7 T1 (P3.5)
DAC0 INT0
DAC1 INT1/MISO
IR Selection (INT0)
ON, P3.6 = 1 (RESET, LED ON)
Pulse Width Modulation
External Interrupts
Counter Timers / GPIO
6 Analog to Digital
Converters,
12 bits, 2.5V
2 Digital to Analog
Converters,
12 bits, 2.5V
Relay 1 (LS1)
Relay 2 (LS2)
ON, P3.6 = 0
ON, P3.7 = 1 (RESET, LED ON)
ON, P3.7 = 0

4. Interface with IR Remote Controller
Details of IR Receiver Module
Tested with RCA RCRN03BR. Programmed code: 10810 (Sony)
Interface with Rotary Encoder (24 Steps)
Jumper connected to attend IR sensor (INT0)
GND +5VVout
B (P0.1) A (P0.0)
Switch (P0.2)

5. Interface with LCD (I2C)
Assembly Details
+5V GND SDA SCL

6. Interface with Raspberry Pi
Assembly Details
GND
+3.3V
+5V
SDA (+3.3V)SCL (+3.3V)
Tx_UART (+3.3V)
Rx_UART (+3.3V)
Conversion Module (5V <-> 3.3V)

7. Testing the Interface with Raspberry Pi using minicom
Sending Text
Receiving Char

8. Basic Applications
1.- A first program
2.- Led flashing
3.- Switch
4.- UART Communication
5.- Testing ADCs and DACs
6.- Rotary Encoder
7.- Testing PWMs and Buzzer
8.- Transfer using Data Flash
9.- Keypad 4x4
10.- Calibration of ADCs
11.- IR Remote Controller
12.- Power Down Mode
13.- LCD Interface
14.- LCD and ADCs
15.- Internal Temperature Sensor
16.- External temperature Sensor (LM35DT)
17.- LCD Rotary Encoder
18.- LCD IR Remote Controller
19.- Real Time Clock