Arduino Nano-Based Portable GSM-GPS Navigator with Compass and Stepper Motor Control
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Circuit Documentation
Summary
This document provides a detailed overview of a circuit that includes an Arduino Nano as the central microcontroller, interfaced with various sensors, modules, and a stepper motor. The circuit is designed to perform multiple functions, which may include sensing, positioning, and wireless communication, as indicated by the presence of a compass module, GPS module, stepper motor, and a SIM module.
Component List
Arduino Nano
- Microcontroller board based on the ATmega328P
- Pins: D1/TX, D0/RX, RESET, GND, D2-D13, VIN, 5V, A0-A7, AREF, 3V3
- Purpose: Acts as the central processing unit of the circuit, controlling the sensors, modules, and motor.
HMC5883L Compass
- 3-axis digital compass
- Pins: DRDY, SDA, SCL, GND, VCC
Adafruit Gear-Reduced Stepper Motor (Small)
- Stepper motor for precise motion control
- Pins: RED, ORANGE, YELLOW, PINK, BLUE
EE-SY310 Reflective Opto Sensor
- Optical sensor for detecting the presence of objects
- Pins: VCC, OUT, GND
3.7v LiPo Battery
- Lithium Polymer battery for power supply
- Pins: +Ve, GND
Step Up Boost 3v-5v
- Voltage step-up converter
- Pins: Vi, GND, Vo
SIM800L Module
- GSM/GPRS module for cellular communication
- Pins: NFT, RING, VCC, DTR, RST, MIC+, RXD, MIC-, TXD, SPK+, GND, SPK-
Resistor (10k Ohms)
- Passive component used to limit current or divide voltages
- Pins: pin1, pin2
- Resistance: 10,000 Ohms
Resistor (20k Ohms)
- Passive component used to limit current or divide voltages
- Pins: pin1, pin2
- Resistance: 20,000 Ohms
Neo 6M GPS Module
- GPS receiver module for location tracking
- Pins: GND, TX, RX, VCC
ULN2003A Breakout Board
- Darlington transistor array for driving stepper motors
- Pins: In 1-7, 0V, +5V, ON/OFF jumper switch, BLUE wire, PINK wire, YELLOW wire, ORANGE wire, RED wire
Resistor (190 Ohms)
- Passive component used to limit current or divide voltages
- Pins: pin1, pin2
- Resistance: 190 Ohms
AMS1117 Voltage Regulator
- Low dropout voltage regulator
- Pins: Volt Out, GND, Volt In
Wiring Details
Arduino Nano
- D2 connected to SIM800L RING
- D4-D7 connected to ULN2003A In 4-1 respectively
- D8 connected to EE-SY310 OUT
- D9 connected to SIM800L RST
- D10 connected to 10k Ohm Resistor pin1
- D11/MOSI connected to SIM800L TXD
- VIN connected to Step Up Boost Vo
- GND connected to common ground net
- 5V connected to common +5V net
- A3 connected to Neo 6M GPS TX
- A2 connected to Neo 6M GPS RX
- A1 connected to HMC5883L SDA
- A0 connected to HMC5883L SCL
HMC5883L Compass
- SDA connected to Arduino Nano A1
- SCL connected to Arduino Nano A0
- GND connected to common ground net
- VCC connected to common +5V net
Adafruit Gear-Reduced Stepper Motor (Small)
- RED wire connected to ULN2003A RED wire
- ORANGE wire connected to ULN2003A ORANGE wire
- YELLOW wire connected to ULN2003A YELLOW wire
- PINK wire connected to ULN2003A PINK wire
- BLUE wire connected to ULN2003A BLUE wire
EE-SY310 Reflective Opto Sensor
- VCC connected to 190 Ohm Resistor pin1
- OUT connected to Arduino Nano D8
- GND connected to common ground net
3.7v LiPo Battery
- +Ve connected to Step Up Boost Vi
- GND connected to common ground net
Step Up Boost 3v-5v
- Vi connected to 3.7v LiPo +Ve
- GND connected to common ground net
- Vo connected to Arduino Nano VIN
SIM800L Module
- RING connected to Arduino Nano D2
- RST connected to Arduino Nano D9
- TXD connected to Arduino Nano D11/MOSI
- RXD connected to 20k Ohm Resistor pin2 (connected to 10k Ohm Resistor pin2)
- VCC connected to AMS1117 Volt Out
- GND connected to common ground net
Resistor (10k Ohms)
- pin1 connected to Arduino Nano D10
- pin2 connected to common ground net
Resistor (20k Ohms)
- pin1 connected to SIM800L RXD
- pin2 connected to common ground net
Neo 6M GPS Module
- TX connected to Arduino Nano A3
- RX connected to Arduino Nano A2
- GND connected to common ground net
- VCC connected to common +5V net
ULN2003A Breakout Board
- In 1-4 connected to Arduino Nano D7-D4 respectively
- 0V connected to common ground net
- +5V connected to common +5V net
- RED wire to Stepper Motor RED
- ORANGE wire to Stepper Motor ORANGE
- YELLOW wire to Stepper Motor YELLOW
- PINK wire to Stepper Motor PINK
- BLUE wire to Stepper Motor BLUE
Resistor (190 Ohms)
- pin1 connected to EE-SY310 VCC
- pin2 connected to common +5V net
AMS1117 Voltage Regulator
- Volt Out connected to SIM800L VCC
- GND connected to common ground net
- Volt In connected to common +5V net
Documented Code
Arduino Nano Code (sketch.ino)
void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}
Note: The provided code for the Arduino Nano is a template with empty setup and loop functions. The actual functionality needs to be implemented based on the specific requirements of the circuit.