Hemal Electronics

The Arduino Dueis a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. It is the first Arduino board based on a 32-bit ARM core microcontroller. It has 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UARTs (hardware serial ports), a clock, an USB OTG capable connection, 2 DAC (digital to analog), 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button. Warning Unlike most Arduino boards, the Arduino Due board runs, The maximum voltage that the I/O pins can tolerate is Applying voltages higher than 3.3V to any I/O pin could damage the board.

The board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it with a AC-to-DC adapter or battery to get started. The Due is compatible with all Arduino shields that work are compliant with the 1.0 Arduino pinout.

Additional Information:

• Pay Mode Terms: T/T (Bank Transfer)

This Arduino compatible motor Driver shield is a full-featured product that it can be used to drive 4 DC motor or two 4-wire steppers and two 5v servos. It drives the DC motor and stepper with the L293D, and it drives the servo with Arduino pin9 and pin10.

L293D is a monolithic integrated, high voltage, high current, 4-channel driver. Basically, this means using this chip you can use DC motors and power supplies of up to 36 Volts, that some pretty big motors and the chip can supply a maximum current of 600mA per channel, the L293D chip is also what’s known as a type of H-Bridge. The H-Bridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e.g. a motor.

The shield contains two L293D motor drivers and one 74HC595 shift register. The shift register expands 3 pins of the Arduino to 8 pins to control the direction of the motor drivers. The output enables the L293D is directly connected to PWM outputs of the Arduino.

• Arduino Stepper/Servo software library with microstepping support.

• To install, click on Download in the top right corner, select zip and uncompress the folder.
• Rename the folder to AF-motor (check that the renamed folder contains the .cpp and .h files) and install into the Arduino sketches/libraries folder. For information how to use and install libraries, see our tutorial! This version now works with the Mega. Public domain!
• AccelStepper library with AFMotor support. This library allows for advanced stepper control including acceleration and deceleration, and concurrent stepper control!
• To install, click on Download in the top right corner, select zip and uncompress the folder.
• Rename the folder to AF-motor (check that the renamed folder contains the .cpp and .h files) and install into the Arduino sketches/libraries folder.

1. Microcontroller CH340
2. Operating Voltage 5V
3. Input Voltage (recommended) 7-12V
4. Input Voltage (limits) 6-20V
5. Digital I/O Pins 54 (of which 15 provide PWM output)
6. Analog Input Pins 16
7. DC Current per I/O Pin 40 mA
8. Dimensions : 111 x 54 x 12 (LxWxH) mm.

The ATmel MCU ATMEGA16U2 MEGA 2560 R3 Improved Version CH340G Board is a micro-controller board base on the ATmega2560. It has a USB host interface to connect with Android based phones, base on the MAX3421e IC.

It has 54 digital input/output pins (of which 15 can be used as PWM outputs); 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator; a USB connection, a power jack, an ICSP header, and a reset button. The MEGA ADK is base on the Mega 2560. Similar to the Mega 2560 and Uno, it features an ATmega8U2 program as a USB-to-serial converter. Revision 3 of the Mega ADK board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU(Device Firmware Upgrade) mode.

The board has the following new features:

• 1.0 pin-out: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In the future, shields will be compatible both with the board that uses the AVR, which operate with 5V and with the Arduino Due that operates with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
• Stronger RESET circuit.

The Mega Arduino R3 Android Accessory Development Kit (ADK) can be power via the USB connection or with an external power supply. The power source is select automatically. External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board’s power jack.

Leads from a battery can be inserted in the GND and Vin pin headers of the POWER connector. Because the Mega R3 Android Accessory Development Kit (ADK) is a USB Host, the phone will attempt to draw power from it when it needs to charge. When the ADK is power over USB, 500mA total is available for the phone and board.

NANO Version 3 is the open source smallest Embedded Development board based on Atmega328 SMD Package Microcontroller. It is a Surface mount Breadboard Friendly board integrated with Mini USB Port. DC Power Jack is not available on this Board, so power can be given through Mini USB Cable. It automatically sense and switch to the higher potential source of power, there is no need for the power select jumper.

Specifications:-

• Microcontroller                        Atmel ATmega328 SMD Package
  
• Operating Voltage (logic level)  5 V
  
• Input Voltage (recommended)  7-12 V
  
• Input Voltage (limits)               6-20 V
  
• Digital I/O Pins                        14 (of which 6 provide PWM output)
  
• Analog Input Pins                    8
  
• DC Current per I/O Pin            40 mA
  
• Flash Memory                         32 KB (of which 2KB used by bootloader)
  
• SRAM                                     2 KB
  
• EEPROM                                 1 KB
  
• Clock Speed                           16 MHz
  
• Dimensions                            0.70” x 1.70”

Transparent Acrylic Case Enclosure Glossy Box For Mega 2560 R3 is made by high grade acrylic, which provides excellent protection. This is unique design provides easy connection to other components. The dimension of enclosure box is the same as original MEGA2560 R3.

Note : This product only includes the case, there is no Mega2560 R3 board inside of the package

Specifications:-

• Protective case of Mega 2560.
• Color: Transparent.
• Fastened by eight screws.
• Made by high grade acrylic.
• Provides excellent protection, with fashion appearance.
• Unique design for Mega 2560 with pin leakage, which provides easy connection to other components.

Package Includes:-

1 x Acrylic Shell Case Box for MEGA2560 R3

Arduino UNO Prototype Shield is used in the cases where you want to build more applications without using any external Breadboard.The Prototyping Shield is designed to facilitate easy prototyping with an Arduino or an Arduino compatible board. It provides prototyping board space to build custom circuits and is great to build custom projects with the Arduino. All IO pins of the Arduino can be tapped into through header pins and empty solder pads for easy expansion.

It works with UNO, Mega, Leonardo, NG, Diecimila, Duemilanove, and compatible Arduinos. Yun's and Arduino Ethernets have a chunky Ethernet jack that gets in the way of stacking, you can use the stacking headers included and it will work, just doesn't sit nice and flat.

Features:-

• It has a nice standard 0.1"x0.1" prototying grid with big pads
  
• Comes with Stacking headers and plain header, choose whichever you want when soldering together
  
• A IC pattern for adding DIP ICs up to 20 pins
  
• Power rails down the middle and sides
  
• A reset button and an extra general use button
  
• 2 3mm general use LEDs, red and green, as well as 2 matching resistors
  
• A pass-thru ICSP stacking header so you can stack any kind of shield on top, and/or use an AVR programmer
  
• A surface-mount chip area for up to 14 SOIC size parts
  
• Compatible with tiny breadboards
  
• Every pin is brought out!
  
• Gold plated pads
  
• 2 x 0.1uF capacitors on either side for extra power stability

Arduino Data Logger Shield has been designed to save data to files in a FAT16- or FAT32-formatted SD card in  a very easy way that can be read later by most plotting, spreadsheet, or analysis programs. This shield also has onboard Real Time Clock (RTC) so you can save all data with current time.

Features of Arduino Data Logger Shield:-

• SD card interface works with FAT16 or FAT32 formatted cards. 3.3v level shifter circuitry prevents possible damage to your SD card.
  
• Real time clock (RTC) keeps the time going even when the Arduino is unplugged. The battery backup lasts for 2 years.
  
• Included libraries and example code for both SD and RTC mean you can get going quickly.
  
• Prototyping area for soldering connectors, circuitry or sensors.
  
• Onboard 3.3v regulator is both a reliable reference voltage and also reliably runs SD cards that require a lot of power to run.
  
• Works with Arduino UNO, Duemilanove, Diecimila, Leonardo or ADK/Mega R3 or higher. ADK/Mega R2 or lower are not supported.
  

This data logger shield provides an Arduino Uno, Leonardo, or Mega with the ability to log sensor data to an SD card with the minimum of set-up. The shield provides several useful features:

Real Time Clock Module

The shield includes the very popular DS1307 battery backed real time clock (RTC). This RTC will keep an accurate track of the data and time for up to several years, even when then shield isn't being powered.

SD Card Reader

A standard SD card reader is provided to allow FAT16 or FAT32 formatted SD cards up to 32GB in size to be read or written to and is compatible with the standard SD card library. The shield also contains appropriate level shifting circuitry to protect the 3.3V interface of your SD card.

Prototyping area

A very useful protoyping area consisting of a grid of pads on a standard 0.1" pitch provide an area to add your own components such as sensors to interface to your Arduino board.

the board is controlled by the ESP8266 chip (a 32-Bit processor) and has a larger flash memory compared to an Arduino Uno. It consists of 11 digital I/O pins and 1 analog (input) pin. the board can be connected using a Micro-B type USB cable.

The D1 R2 is a WiFi capable ESP8266EX based development board in the form of the Arduino UNO board format.This board is compatible with theArduino IDEand withNodeMCU.

The D1 R2 also features an onboard switching power supply which allows you to power the board from a power supply up to 12V.

• Based on the ESP-8266EX.
• Arduino Compatible, you can use it on Arduino IDE.
• NodeMcu Compatible

MAX7219 4-in-1 Display Dot Matrix Module is an integrated serial input/output common-cathode display driver, it connects the microprocessor 7-segment digital LED display with 8 digits, you can also connect a bar graph display or 64 independent LED. Thereon including a B-type BCD encoder chip, multi-channel scanning loop segment word driver, but also a static RAM 8 x 8 for storing each data. Only one external register is used to set the segment current of each LED.

Specifications and Features:-

• Dimensions: 128 x 32  x 1.5mm(LxWxH)(All 4 in 1)
  
• Dimension 32 x 32 x 1.5 mm (LxWxH) (Single Module)
  
• A single module can drive an 8×8 dot matrix common cathode
  
• Operating voltage: 5V
  
• Weight: 55 gm
  
• Fixing screws with 64 holes with a diameter 3mm
  
• Module with input and output interfaces
  
• Support for cascading multiple modules
  

Wiring Instructions:-

The left side of the module to the input port, the right to an output port.

When the control of a single module, simply input port connected to CPU

When a plurality of cascaded modules, input and output termination CPU, an input terminal of the second output end of the first module a module, the first two modules of the input terminal of the three termination modules, and so on..

Pin Description:-

• VCC 5V
  
• GND GND
  
• DIN P2.2
  
• CS P2.1
  
• CLK P2.0

This is a basic 16 character by 2 line Alphanumeric display. Black text on Green background. Utilizes the extremely common HD44780 parallel interface chipset . Interface code is freely available. You will need Minimum 6 general I/O pins to interface to this LCD screen. Includes LED backlight. Works in 4bit and 8 bit Mode.

Features:

• 16 Characters x 2 Lines
  
• Green Backlight
  
• 5x7 Dot Matrix Character + Cursor
  
• HD44780 Equivalent LCD Controller/driver Built-In
  
• 4-bit or 8-bit MPU Interface
  
• Standard Type
  
• Works with almost any Microcontroller

16x2 Keypad LCD Shield is a solution for Arduino lovers those who want to work with LCD and arduino without using external switches. It includes a 2x16 LCD display and 6 momentary push buttons. Pins 4, 5, 6, 7, 8, 9 and 10 are used to interface with the LCD. Just one Analog Pin 0 is used to read the five pushbuttons. The LCD shield supports contrast adjustment and back-lit on/off functions. It also exposes five analog pins for easy analog sensor plugging and display. An on board power LED is also provided.

This design is great since easily lets you keep connecting sensors to the rest of the pins, and use it for monitoring or menu selection with the push buttons even for gaming. Often project applications require testing or debugging. Displaying information right away help on most occasions when a computer is not at reach. If you are planning to build something not attached to a computer and you need to check what is going on when you place it on position, this addition will prove very valuable to make sure the program is running well.

The used LCD pins are not exposed on top side of the board leaving only the unused ones. This way, conflict with LCD pins on top of the board will not happen anymore. 

Specifications:-

• Blue Backlight with white words
• uses 4 Bit Arduino LCD Library
• Left, Right, Up, Down and Select buttons
• Screen contrast adjustment
• Arduino Reset button
• Operating Voltage is 5V

Pin Connections:-

Pin             Function

Analog 0     Buttons (select, up, right, down and left)

Digital 4     DB4

Digital 5     DB5

Digital 6     DB6

Digital 7     DB7

Digital 8     RS (Data or Signal Display Selection)

Digital 9     Enable

The Due is an open source precise microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. It is the newcomer and 1st board based on a 32-bit ARM core microcontroller. It adds new features and improve all the standard functionalities.

It offer 54 digital input/output pins (of which 12 can be used as PWM outputs, with selectable resolution), 12 analog inputs with 12 bit of resolution, 4 UARTs (hardware serial ports), and two DAC outputs (digital to analog converter), 84 MHz crystal oscillator, two USB connections, a power jack, an ICSP header, a JTAG header, and a reset button. The maximum voltage that the I/O pins can provide or tolerate is 3.3V. Providing higher voltages, like 5V to an input pin could damage the board.

The Due has two usb connectors, the one with the micro-usb AB connector is the native one capable to act as an USB host, that means you can connect compatible external usb peripherals to the board, such as mouse, keyboards, smartphones. While the other USB port with the type B connector is intended for debugging purposes.

The Due is compatible with all shields that work at 3.3V and are compliant with the pinout.

The SAM3X has 512KB (2 blocks of 256KB) of flash memory for storing code. The bootloader is preburned in factory from Atmel and is stored in a dedicated ROM memory. The available SRAM is 96KB in two contiguous bank of 64KB and 32KB. All the available memory (Flash, RAM and ROM) can be accessed directly as a flat addressing space.

It is possible to erase the Flash memory of the SAM3X with the onboard erase button. This will remove the currently loaded sketch from the MCU. To erase, press and hold the Erase button for a few seconds while the board is powered. 

Specifications:-

• Microcontroller: AT91SAM3X8E
• Operating Voltage: 3.3V
• Input Voltage (recommended): 7-12V
• Input Voltage (limits): 6-16V
• Digital I/O Pins: 54 (of which 12 provide PWM output)
• Analog Input Pins: 12
• Analog Outputs Pins: 2 (DAC)
• Total DC Output Current on all I/O lines: 130 mA
• DC Current for 3.3V Pin: 800 mA
• DC Current for 5V Pin: 800 mA
• Flash Memory: 512 KB all available for the user applications
• SRAM: 96 KB (two banks: 64KB and 32KB)
• Clock Speed: 84 MHz
• Dimensions: 104 x 53 x 15mm
• Weight: 35g

This is LCD 1602 Parallel LCD Display that provides a simple and cost-effective solution for adding a 16×2 White on Liquid Crystal Display into your project. The display is 16 character by 2 line display has a very clear and high contrast white text upon a blue background/backlight.

This is great blue backlight LCD display. It is fantastic for Arduino based project. This LCD1602 LCD Display is very easy to interface with Arduino or Other Microcontrollers.

This display overcomes the drawback of LCD 1602 Parallel LCD Display in which you’ll waste about 8 Pins on your Arduino for the display to get working. Luckily in this product, an I2C adapter is directly soldered right onto the pins of the display. So all you need to connect are the I2C pins, which shows a good library and little of coding.

The I2C is a type of serial bus developed by Philips, which uses two bidirectional lines, called SDA (Serial Data Line) and SCL (Serial Clock Line). Both must be connected via pulled-up resistors. The usage voltages are standard as 5V and 3.3V.

If you already have the I2C adapter soldered onto the board like in this product, the wiring is quite easy. You should usually have only four pins to hook up. VCC and GND of course. The LCD display works with 5 Volts. So we go for the 5V Pin.

The values shown on the display can be either a simple text or numerical values read by the sensors, such as temperature or pressure, or even the number of cycles that the Arduino is performing.

Specifications & Features :-

• Arduino IIC/I2C interface was developed to reduce the IO port usage on Arduino board
  
• I2C adapter allows flexibility in connections
  
• I2C Reduces the overall wirings.
  
• 16 characters wide, 2 rows
  
• White text on the Blue background
  
• Single LED backlight included can be dimmed easily with a resistor or PWM.
  
• Interface: I2C
  
• Interface Address: 0x27
  
• Character Color: White
  
• Backlight: Blue
  
• Supply voltage: 5V

The MAX7219 is an integrated serial input / output common-cathode display driver, it is connected to a microprocessor with 8-digit 7-segment digital LED display can also be connected to the bar graph display or 64 separate LED. On B BCD encoder including an on-chip, multi-channel scanning loop word drive, but also an 8 x 8 static RAM is used to store each data. Only one external register is used to set the current of each LED segment.

A convenient four-wire serial interface can connect all general-purpose microprocessor. Each data can be addressed in the update does not need to rewrite all the display. MAX7219 also allows the user to select on each data coding or non-coding.

The entire device contains a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display the 1-8 bits of data, as well as a let all LED light detection mode.

Only need three IO ports can drive a dot-matrix! Dot-matrix display, flicker-free! Supports cascading!

Features:-

A single module can drive an 8 * 8 common cathode lattice

Module operating voltage: 5V

Module size: 5 cm in length X width 3.2 cm x 1.5 cm

Including four screws hole, aperture 3mm

Module with input and output interface, supports multiple modules cascade

This L298 Based Motor Driver Module is a high power motor driver perfect for driving DC Motors and Stepper Motors. It uses the popular L298 motor driver IC and has the onboard 5V regulator which it can supply to an external circuit. It can control up to 4 DC motors, or 2 DC motors with directional and speed control

This motor driver is perfect for robotics and mechatronics projects and perfect for controlling motors from microcontrollers, switches, relays, etc. Perfect for driving DC and Stepper motors for micro mouse, line following robots, robot arms, etc.

An H-Bridge is a circuit that can drive a current in either polarity and be controlled by Pulse Width Modulation (PWM).

Pulse Width Modulation is a means of controlling the duration of an electronic pulse. In motors try to imagine the brush as a water wheel and electrons as the flowing droplets of water. The voltage would be the water flowing over the wheel at a constant rate, the more water flowing the higher the voltage. Motors are rated at certain voltages and can be damaged if the voltage is applied to heavily or if it is dropped quickly to slow the motor down. Thus PWM. Take the water wheel analogy and think of the water hitting it in pulses but at a constant flow. The longer the pulses the faster the wheel will turn, the shorter the pulses, the slower the water wheel will turn. Motors will last much longer and be more reliable if controlled through PWM.

Features:-

• Driver chip: L298 dual H-bridge driver chip.
  
• Operates up to 35V DC
  
• Drive part of the peak current Io: 2A / Bridge
  
• Logical part of the terminal power supply range Vss :4.5V-5.5V
  
• Logical part of the operating current range: 0 ~ 36mA
  
• Maximum power consumption: 20W
  

Pins:-

• Out 1: Motor A lead out
  
• Out 2: Motor A lead out
  
• Out 3: Motor B lead out
  
• Out 4: Mo (Can actually be from 5v-35v, just marked as 12v)
  
• GND: Ground
  
• 5v: 5v input (unnecessary if your power source is 7v-35v, if the power source is 7v-35v then it can act as a 5v out)
  
• EnA: Enables PWM signal for Motor A (Please see the “Arduino Sketch Considerations” section)
  
• In1: Enable Motor A
  
• In2: Enable Motor A
  
• In3: Enable Motor B
  
• In4: Enable Motor B
  
• EnB: Enables PWM signal for Motor B 
  

NodeMCU is a IoT Module based on ESP8266 wifi Module. NodeMCU uses Lua Scripting language and is an open source Internet of Things (IoT) platform. This modules has CH340g USB to TTL IC.

Specification of Node-MCU IoT Module :-

It is based on ESP8266, integates GPIO, PWM, IIC, 1-Wire and ADC all in one board.

Power your developement in the fastest way combinating with NodeMCU Firmware!

USB-TTL included, plug&play

10 GPIO, every GPIO can be PWM, I2C, 1-wire

Features of Node-MCU IoT Module:-

Open source IoT Platform

Easily Programmable

Low cost & Simple to Implement

WI-FI enabled

This is a multicolor graphic IPS LCD display, 2.8inch diagonal, 320x240 pixels, with a resistive touch screen. This TFT display is big (2.8 diagonal) bright and colorful! 240x320 pixels with individual RGB pixel control, this has way more resolution than a black and white 12864 display. It has an onboard touch controller for a smoother touch experience.

1. Onboard touch controller, smoother touch experience than solutions that directly use AD pins for touching.
2. SPI interface requires a few pins.
3. Programmable backlight control, power saving.
4. Comes with development resources and a manual (examples for STM32/AVR/PIC).

1 x Waveshare 2.8 Inch Resistive Touch LCD Display

But instead of sniffing the blackbody radiation from a moving person, this sensor uses a microwave Doppler radar technique to detect moving objects. It has a sensitivity range of ~7 meters. When triggered, its TTL-level output (OUT) pin will switch from LOW (0 V) to HIGH (3.3 V) for a finite time (2 to 3 s) before returning to its idle (LOW) state.

This flexible sensor module can easily be used in conjunction with many microcontrollers and even without a microcontroller at all. It can handle power supply inputs anywhere from 4 to 28 V.

The output pin can be utilized for a multitude of tasks, such as for driving an aural/visual indicator or even linking with the I/O of any 3-V microcontroller for further processing. During construction, avoid any metal part in front of the sensor module. Similarly, always keep a minimum of 1-cm clear space on the front and rear side of the module.

Pinouts of RCWL-0516 Microwave Radar Sensor:-

CDS Sensor disable input (low = disable)
VIN 4- to 28-V DC supply input
OUT HIGH (3.3 V) motion detected/LOW (0 V) idle
GND Ground/0 V
3V3 Regulated DC output (100 mA max)

• Transmission signal processing control chip RCWL-9196
• Wide operating voltage range 4.0V to 28.0V
• Penetrating detection capability, compared with the traditional infrared feeling PIR
• Adjustable Block time and distance
• 3.3V output power supply

1. 2.4 diagonal Touch LCD TFT display
2. 240320 resolution, 18-bit (262,000) color
3. 8-bit digital interface, plus 4 control lines
4. 5V compatible! Use with 3.3V or 5V logic
5. Onboard 3.3V 300mA LDO regulator
6. Uses digital pins 5-13 and analog 0-3. That means you can use digital pins 2, 3, and analog 4 and 5. Pin 12 is available if not using the microSD
7. Works with any Arduino Uno and mega compatible boards

1 x 2.4 Inch Touch Screen TFT Display Shield for Arduino UNO Mega

1 x Stylus Pen

Use this power regulation module to provide 5V and 3V3 power supply to your breadboard based project.This power supply board is designed to plug into a Breadboard panel with 2 power Distribution strips. The module can be powered by a USB port or an external power supply 7-12V. The module has two independent power lines, which can be set to output voltage of 5V or 3.3V, or completely remove power from the line. The module has ON / OFF switch to turn on and off module. It comes with reverse polarity and short circuit protections, which greatly helps during building and testing circuits on the breadboard.

Features:-

• Designed to fit the standard MB102 bread board
  
• Power Supply comes with On/Off Switch
  
• Green LED power indication
  
• Built-in protection against short-circuit through power limiting circuitry
  
• compatible with 5V, 3.3V
  
• Input Voltage :6.5-12V (DC) or USB power
  
• Output voltage: 3.3V, 5V switchable
  
• Maximum Output Current: <700ma
  
• Two way independent control
  
• Output VoltageCan be switched to 0V, 3.3V, 5V
  
• On-board Two sets of 3.3V, 5V DC output pins, lets you connect directly to external circuits and to multiple breadboards.
  
• Dimension: 53 * 32 * 23 mm

Additional Information:

• Delivery Time: EX STOCK
• Packaging Details: 100PC BAG

You can control 16 free-running PWM outputs with 16-Channel 12-Bit PWM/Servo Driver using only 2 pins. You can even chain up 62 breakouts to control up to 992 PWM outputs.

It’s an I2C-controlled PWM driver with a built-in clock. That means you do not need to continuously send it to signal to tie up your microcontroller, it is completely free running!

It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs. This is good when you want to control white or blue LEDs with 3.4+ forward voltages. 6 address select pins so you can wire up to 62 of these on a single I2C bus, a total of 992 outputs.

• Adjustable frequency PWM up to about 1.6 KHz
• 12-bit resolution for each output – for servos, that means about 4us resolution at a 60Hz update rate
• Configurable push-pull or an open-drain output
• The output enable pin to quickly disable all the outputs
• Terminal block for power input
• Reverse polarity protection on the terminal block input
• Green power-good LED
• 3 pin connectors in groups of 4 so you can plug in 16 servos at once
• Chainable design
• A spot to place a big capacitor on the V+ line
• 220-ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial.
• This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers.

• 1 x 16-Channel 12-bit PWM/Servo Driver

A 360 Degree Rotary Encoder is a Bread Board Friendly extremely precise module that provides an indication of how much the knob has been rotated AND what direction it is rotating in. It is an incremental electro-mechanical device that converts the angular position or motion of a shaft or axle to digital code. The output of incremental encoders provides information about the motion of the shaft, which is typically further processed in processor / controllers into information such as speed, distance, and position. 

It’s a great device for stepper and servo motor control.  You could also use it to control devices like digital potentiometers.

Features:-

• Incremental Encoder
• Supply Voltage: 3-5V
• Left/Right rotary output pulse, each circle with 20 pulse
• Built in 10k resistor
• Cycles per revolution (CPR): 20