Interfacing Keypad Dimmer

Product Details:

Specifications:

• 4x4 matrix keypad
• Rebound time 1 (ms)
• Life of 100 million (times)
• The electronic characteristics Circuit Rating: 35V (DC), 100mA, 1W Contact resistance

Product Details:

"The USB to RS485 Converter Adapter module help WIN7 XP Vista Linux Mac OS  presents an clean to apply RS485 interface by using a Virtual Com Port at the consumer’s system.

 

There aren''t any command systems, anything is despatched to the Virtual Comm Port is routinely converted to RS485 and vice versa. The module is completely self-powered from the USB bus.

 

Controlling / Communicating with RS-485 devices from your PC has by no means been less difficult! This device is plug-and-play. It suggests up as a serial/com port and is available from packages or hyper-terminal.

 

Applications :

All kinds with RS485 port device parameter settings, data communication

LED display of communication data

Machine PLC data reading and writing

Monitoring data read and write, and PTZ control

Centralized control of household electrical appliances

Access Control System card

 

Features :

Fully compliant USB 2.0 standard, backward compatible with USB1.1

Support System: Windows XP, Vista, Windows 7, Linux, MacOS, and WinCE5.0 drive

Supports Plug, Play and hot-swap ( USB side) ;

Better than using CH341D chip or similar chip to support the laptop USB port.

Communication distance up to 1.2KM, with the anti-jamming performance of the industrial site

No need external power, powered by USB port

 

Package Includes :

1 x USB to RS485 Converter Adapter"

Product Details:

"This is PL2303 PL2303HX USB To TTL(Serial) Converter Module – 5 Pin. Adopt imported controller RS232 TTL, that can stabilize the flash with high-velocity 500mA self-recuperation fuse for safety.
Two facts transmission indicator can monitor records transfer repute in actual-time. Reserve 3.3V and 5V pin interface, clean for DDWRT of various voltage gadget that wishes strength. The entire board is lined by using a excessive satisfactory transparent heat-shrinkable sleeve, making the PCB in insulation state from outdoor, so that the board won’t be burnt down with the aid of a cloth shortcut.
For issues related to Prolific USB Windows 8.1 and Windows 10 motive force, see the VIDEOS phase.
Applications :
All kinds of satellite set-top box upgrade.Router, HDD, ADSL, broadband modem firmware upgrade or cracked upgrade.cellphone, XBOX360, GPS serial communication, vehicle inspection and test, DVD flash and so on.Burn writes STC MCU, NXP MCU, Renesas MCU, NEC MCU and so on.Simple UART communication commonly used UART debugging tools in the supper terminal.USB signal transferred to the TTL signal may be used by electronic enthusiasts.
Features : Adopt imported controller PL2303HX, which can stabilize the flash with high speed500mA self-recovery fuse for protection.Two data transmission indicator can monitor data transfer status in real time.Reserve 3.3V and 5V pin interface, easy for the DDWRT of different voltage system that needs power.The entire board is coated by the high quality transparent heat-shrinkable sleeve, making the PCB in insulation state from outside.so that the board won’t be burnt down by material shortcut.The electrostatic package ensures the board will not be damaged before use.Support WIN7 system.
Package Includes :1 x PL2303 PL2303HX USB To TTL Module
Specifications:Input Supply voltage (V) 3.3 ~ 5
Model PL2303HX
Support Windows 98 to Windows 7 (32 bit and 64 bit)Mac OS 8 to OS X (32 bit and 64 bit)Linux
Length (mm) 52
Width (mm) 15.5
Height (mm) 6.5
Weight (gm) 5
Shipment Dimensions 6 × 3 × 2 cm"

Product Details:

The PCA9532 is a 16-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.The PCA9532 contains an internal oscillator with two user programmable blink rates andduty cycles coupled to the output PWM. The LED brightness is controlled by setting the blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the dutycycle to vary the amount of time the LED is on and thus the average current through the LED.

Features:

• 256 brightness steps
• Input/outputs not used as LED drivers can be used as regular GPIOs
• Internal oscillator requires no external components
• I2C-bus interface logic compatible with SMBus
• Internal power-on reset 16 LED drivers (on, off, flashing at a programmable rate)
• Two selectable, fully programmable blink rates (frequency and duty cycle) between 0.591 Hz and 152 Hz (1.69 second and 6.58 milliseconds)

Applications:

• Backlighting
• RGB Color Mixing
• Sensors Control
• Power Switches
• Push−buttons
• Alarm Systems

Output power:

• 10A-120watts per channel @12V
• 10A-240watts per channel @24V

Product Details:

DTMF is a Dual Tone Multiple Frequency decoder module which has a MT8870 DTMF decoder IC which decodes DTMF tone signal to digital signal that are acceptable for arduino digitally. Here an aux wire is needed for connecting DTMF module to phone.

Required Components:

• Arduino UNO
• DC Motor
• Mobile Phone
• DTMF decoder Module
• Motor Driver L293D
• Battery Connector
• Aux wire
• Robot Chasis with wheel
• Connecting wires

Features:

• Remote section: This section’s main component is DTMF
• Here we get a tone from our cellphone by using aux wire to DTMF Decoder IC namely MT8870 which decodes the tone into digital signal of 4bit
• Control Section: Arduino UNO is used for controlling whole the process of robot
• Arduino reads commands sent by DTMF Decoder and compare with define code or pattern
• If commands are match arduino sends respective command to driver section
• Driver section: driver section consists motor driver and two DC motors
• Motor driver is used for driving motors because arduino does not supply enough voltage and current to motor
• So we add a motor driver circuit to get enough voltage and current for motor
• By collecting commands from arduino motor driver drive motor according to commands.

Product Details:

A 4x4 matrix keypad requiring eight Input/Output ports for interfacing issued as an example. Rows are connected to Peripheral Input/Output (PIO) pins configured as output. Columns are connected to PIO pins configured as input. In this configuration, pull-up resistors are added in order to apply a high level on the corresponding pins.

Features:

• Contact debouncing
• Easy to interface
• Interfaces to any microcontroller or microprocessor

Applications:

• Vending machines
• Public phones
• Ticketing

Pin detail:

• Pin Name Details
• 1-4 R0-R3 rows
• 5-8 C0-C3 columns
• 9 pull-up 10K pull-up