MiniDuino Version X1

• MiniDuino X2 page

The MiniDuino is an Arduino(TM) variant targeted at a very specific application - an Embedded GPS controller. The functionality of the MiniDuino allows it to be used in many applications. MiniDuino is very small - 2.0" x 1.35" and has large 4-40 mounting holes on each of the four corners for easy installation into an enclosure.

Here's a library for the MiniDuino.

An application-oriented Arduino variant

The MiniDuino is targetted at supporting some leading hardware choices. The following have connections directly on the MiniDuino:

• Adafruit Ultimate GPS Breakout 8-pin connector
• Chinese 1.8" TFT LCD with MicroSD Card (10 pin variant with wiring to support 8 pin wiring version) (Adafruit version).
• FTDI-USB-TTL 6-pin connector
• 5-Way Switch interface (GVS)
  
• 5 Analog connections with AREF
• V2 - A4, A5 split onto I2C connector
  
• 3 Digital connections with Power/Ground

An Embedded Design Arduino

The result is the a great basis for most embedded designs. Any design which requires menu navigation and LCD displays along with a few I/O pins is a great fit. More I/O pins can be accommodated via an I2C interface and either the 8-bit I2C parallel port card or 16-bit I2C parallel port card.

Connectors/Pinouts

Pin 1s are the square pins.

TB1 - 5mm Terminal block

1. 1 - VIN (7-12V)
2. 2 - GND

J1 - TFT LCD

1. VCC
2. BKLT (WIRED TO GROUND)
3. RESET
4. D/C-RES
5. MISO
6. MOSI
7. SCL
8. LCDCS
9. SDCS
10. GND

J2 - 5-Way Switch Menu

1. Ground
2. VCC
3. Switch Input

J3 - GPS Connector

1. VCC
2. GND
3. GPSRX
4. GPSTX
5. GPSFIX (N/C)
6. VBAT (N/C)
   
7. GPSEN (N/C)
8. 3.3V OUT
   

J4 - FTDI

1. GND
2. GND
3. VCC
4. D0
5. D1
6. RESET

J5 - Analog Spares

1. AREF
2. GND
3. GND
4. AD1
5. AD2
6. AD3
7. AD4 (V1 design)
   
8. AD5 (V1 design)

J6 - Digital Spares

1. VCC
2. D4
3. D5
4. D6
5. GND
6. GND

J7 - I2C Interface (V2 design)

1. GND
2. VCC
3. SDA
4. SCL

// Pin assignments as referenced to the Zachary ProtoShield
// Arduino Port  Connector  Function
// D0            J4-4       FTDI Transmit/Arduino Receive
// D1            J4-5       FTDI Receive/Arduino Transmit
// D2            J3-3       GPSRx
// D3            J3-4       GPSTx
// D4            J6-2       Digital Input
// D5            J6-3       Digital Input
// D6            J6-4       Digital Input
// D7            J1-9       SD Card Chip Select
// D8            J1-3       LCD Reset
// D9            J1-4       LCD Register Select (DC or RS)
// D10           J1-8       LCD Chip Select
// D11           J1-6       LCD MOSI 
// D12           J1-5       LCD MISO
// D13           J1-7       LCD SCK
// A0            J2-3       Keypad
// A1            J5-4       Values (such as temperature) set potentiometer wiper
// A2            J5-5       Analog Input
// A3            J5-6       Analog Input
// A4 (SDA)      J7-3       I2C SDA LCD
// A5 (SCK)      J7-4       I2C SCK LCD