Electronics Parts

1. 16X2 1602 BLUE LCD DISPLAY MODULE (WITH 10K TRIMMER)

1602_lcd_pack_with_resistor_and_10k_trimmer__77042.1508522284.1280.1280.jpg

LCD display module with blue backlight - Arduino Liquid Crystal library-compatible. I got it from OddWires http://www.oddwires.com/16x2-1602-blue-lcd-display-module-with-free-10k-trimmer/ I highly recommend the place, their prices are reasonable and they don't rip you off like some big-name "maker" web sites try to do. Don't be fooled if something there sayf for Arduino you can usually make it work fine on any other system.

Includes 10K trimmer potentiometer for contrast adjustment
Includes 220 ohm resistor for backlight
HD44780 compatible - works with standard Arduino LiquidCrystal library

Specifications

  • Wide viewing angle and high contrast
  • Display: 16 Characters x 2 Lines
  • LCD Type: STN Blue
  • Backlight Type: Blue LED
  • Character Fonts: 5×8 Dots (with cursor)
  • Controller: SMC1602A or Equivalent
  • Power Supply for LCM: DC +5V
  • LED Backlight Input: DC +5V
  • Module Outline Dimension: 80W * 36H * 13.5T mm
  • View Area: 65W * 14H mm
  • Character Size: 4.89W * 2.78H mm
  • Pitch Size: 0.50W * 0.55H mm

Additional References for HD44780-designs
https://www.arduino.cc/en/Tutorial/HelloWorld?from=Tutorial.LiquidCrystal
https://learn.adafruit.com/drive-a-16x2-lcd-directly-with-a-raspberry-pi/wiring

2. Ultrasonic Ranging Module HC - SR04

Ultrasonic_Sensor_HC-SR04.jpg

Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact
measurement function, the ranging accuracy can reach to 3mm. The modules
includes ultrasonic transmitters, receiver and control circuit.

DGCH-RED_datasheet.pdf

Example Arduino Application: http://www.instructables.com/id/Simple-Arduino-and-HC-SR04-Example/?ALLSTEPS

GitHub Repo: (sample Arduino code) https://github.com/sparkfun/HC-SR04_UltrasonicSensor

3. L298N DUAL H BRIDGE DC STEPPER MOTOR CONTROLLER MODULE FOR ARDUINO

L298StepperController__79861.1342485907.1280.1280.jpg

The L298 Stepper Controller makes it easy to drive either two DC motors or a bipolar stepper motor. This is a very high quality board and is very compact for designs where space really matters.

Features :

  • Double H bridge drive
  • Chip L298N (ST NEW)
  • Logical voltage 5V
  • Drive voltage 5V-35V
  • Logic current 0mA-36mA
  • Drive current 2A(MAX single bridge)
  • Storage temperature -20 to +135
  • Max power 25W
  • Weight 30g
  • Small size 43*43*27mm ( approx 1.75" x 1.75" x 1")
  • Compatible with L297/L298 driver

Note
This module has a built-in 5v power supply for external use. Drive voltage is 7v-35v. DO NOT input voltage to +5v supply interface - this is OUTPUT only.

There is a tutorial here.http://www.oddwires.com/stepper-motor-and-l298n-stepper-motor-controller/
Available here: Stepper Library http://arduino.cc/en/Reference/Stepper

l298n-dual-2a-motor-driver-module-tronixlabs-australia-pinout.jpg
  1. DC motor 1 "+" or stepper motor A+
  2. DC motor 1 "-" or stepper motor A-
  3. 12V jumper - remove this if using a supply voltage greater than 12V DC. This enables power to the onboard 5V regulator
  4. Connect your motor supply voltage here, maximum of 35V DC. Remove 12V jumper if >12V DC
  5. GND
  6. 5V output if 12V jumper in place, ideal for powering your Arduino (etc)
  7. DC motor 1 enable jumper. Leave this in place when using a stepper motor. Connect to PWM output for DC motor speed control.
  8. IN1
  9. IN2
  10. IN3
  11. IN4
  12. DC motor 2 enable jumper. Leave this in place when using a stepper motor. Connect to PWM output for DC motor speed control.
  13. DC motor 2 "+" or stepper motor B+
  14. DC motor 2 "-" or stepper motor B-

There is a good tutorial here http://www.oddwires.com/stepper-motor-and-l298n-stepper-motor-controller/

Here is another (pdf)

l298n_dual_motor_controller_module.pdf

4. DS1307 Real Time Clock Module for Arduino with I2C Interface

DS1307 Real Time Clock Module for Arduino with I2C Interface

rtcClock__34294.1342870302.1280.1280.jpg
This is a DS1307 Real Time Clock utilzing I2C and can be used with standard DS1307 library. The included Lithium coin cell battery (CR1225 41mAh) will run the module for a minimum of 9 years (17 years typical) without external 5V power.

Specifications

Two wire I2C interface
Hour : Minutes : Seconds AM/PM
Day Month, Date - Year
Size: 28x25x10mm
Leap year compensation
Accurate calendar up to year 2100
DS1307 based RTC with LIR2032 battery (Battery include)
1Hz output pin
56 Bytes of Non-volatile memory available to user

Connections

SDA to SDA (Data)
SCL to SCL (Clock)
Vcc to +5V
GND to GND

Arduino LIbrary http://code.google.com/p/ds1307new/

Datasheet

DS1307.pdf

A great tutorial

TinyRTC_i2c_module_Techincal_Manual_rev1.pdf

5. HC-05 Bluetooth Transceiver Module RS232/TTL Baseboard, Master / Slave

HC_05__32433.1424220923.1280.1280.jpg

Features:

Bluetooth Serial Transceiver Module with baseboard
Works with any USB Bluetooth adapters
Easy to use and completely encapsulated
This module includes key interface and state interface compared with Smart Bluetooth Module Baseboard
The Bluetooth Module Baseboard can be compatible with master mode, slave mode and both master-slave mode
Works for Bluetooth TTL transceiver module which allows your target device to both send or receive the TTL data
The key interface on the baseboard is the master mode button and can be controlled by high level from external MCU, then this module will search again automatically

More Specs:

Power supply input is 4.5~6V
Module working voltage 3.3 V
Potter default rate of 9600, the user can be set up
The core module size : 28 mm x 15 mm x 2.35 mm
Working current: matching for 30 MA, matching the communication for 8 MA
Dormancy current: no dormancy

Here is the manual for this module.

newBluetooth.pdf

6. LED Matrix 8 x 8 Red Common Cathode

ledMatrix8x8__79593.1369168554.1280.1280.jpg

Versatile LED matrix. Easy to use with MAX7219CNG display driver and Arduino.

Specifications

8 x 8 matrix
Red color
3mm LEDs
Common cathode pins - easy to drive with MAX7219CNG
Face color black
Lens epoxy color white, diffused
Viewed from top, pin 1 is bottom left , pin 16 is top left (see image)

LED8x8_1088AS.pdfSH1088AS_Pinout__85329.1463421586.1280.1280.pdf

Great tutorial http://playground.arduino.cc/Main/LEDMatrix

Arduino Library http://playground.arduino.cc/Main/LedControl

7. IRLB8721PBF POWER N-CHANNEL MOSFET 30V 60 A

irlb8721__79160.1361649575.1280.1280.jpg

Excellent, general purpose power MOSFET. Used in many Arduino switching situations, motor control etc.

Features

Very Low RDS(on) at 4.5V VGS
Ultra-Low Gate Impedance
Fully Characterized Avalanche Voltage and Current
Lead-Free

irlb8721pbf.pdf

8. DHT11 Temperature and Humidity Sensor

DHT11__26715.1343837305.1280.1280.jpg

Specifications

Temperature Sensor IC
Relative humidity Resolution: 16Bit, Repeatability: ±1% RH, Accuracy: At 25°C ±5% RH
Temperature Resolution: 16Bit, Repeatability: ±0.2°C, Range: At 25°C ±2°C Response time: 1 / e (63%) 10S
Electrical Characteristics, Power supply: DC 3.5~5.5V, Current: measurement 0.3mA standby 60µ A
Sampling period: more than 2 seconds

Pin Description
1, VDD power supply 3.5~5.5V DC
2 DATA serial data, a single bus
3, NC, empty pin
4, GND ground, the negative power

dht11-sensor.jpg

Manual

DHT11.pdf

9. 433 MHz Transmitter and Receiver Modules

nrf__66638.1347562824.1280.1280.jpg433MhzTransceiver__65253.1347562835.1280.1280.jpg

This is a very low cost transmitter and receiver pair. Typical transmission distances are up to 100 yards or meters. They are very suitable for remote control (with longer distances than IR and no direct line of sight required), sensor transmission or data logging applications. Use of antennas, particularly on the transmitter will ensure decent transmission/reception distances. A quarter-wave antenna of around 17.5 cm or 8.2 inches is the calculated length. In practice a length of wire around 12 inches has proven better. The transmitter can be driven at varying voltages up to 12V max. At 9V we were able to achieve transmission from any position to any other in a 3,000 square feet house in a third of an acre plot using 12" antennas at 2400 bps. The virtualWire library makes it easy to use the devices with Arduino.See http://www.open.com.au/mikem/arduino/

Specifications (transmitter)

Working voltage: 3V•__12V
Working current: max≤40mA (12V), min≤9mA(3V)
Resonance mode: sound wave resonance (SAW)
Modulation mode: ASK /OOK
Working frequency:433.92MHz
Transmission power: 25mW (315MHz at 12V)
Frequency error: +150kHz (max)
Transmission rate: ≤10Kbps

Specifications (receiver)
Working voltage: 5.0VDC +0.5V
Working current:≤5.5mA (5.0VDC)
Working principle: single chip super-regeneration receiver
Working method: OOK/ASK
Working frequency: 433.92MHz
Sensitivity: excel –100dBm (50Ω)
Transmitting velocity: max 9.6Kbps

433mhz_rf-tx&rx.pdf

Tutorial for Arduino http://electronics-diy.com/arduino-rf-link-using-433mhz-transmitter-receiver-modules.php