Misc-Projects

10X 3W LED Board For Large Bar-Graph Meter/Light Effects

The 10X3W White LED board has been designed to create large size bar-graph meter and light effects generator.  The board contains 3W LEDs, D-Pk MJD44H11 transistor as driver and current limiting resistor across each LED. Circuit works with 5V, each LED take approx. 300mA-400mA current, each LED can be controlled individually by applying TTL voltage, header connector provided to interface micro-controller, Ardunio, Raspberry Pi etc.  . LED dimmer possible by applying PWM signal to each LED, Easy interface with Arduino.


DC Solid State Relay Using MOSFET & Optically Isolated Gate Driver With Current Feedback & Fault Output


Type K Thermocouple Sensor Amplifiers with Cold Junction Compensation Using AD595-AD594


Optical Reflective Line Sensor for Robotics and No Contact Surface Sensing QRE1113

The sensor circuit helps to sensing the line for robotics application and  no contact surface sensing. The mini line sensor provides analog voltage output and can work with 3.3V and 5V DC. Analog output voltage is proportional to IR reflected to the senor. Resistor R1 controls the current  to IR LED, R2 provided as pull up resistor. Sensor contains Infra-Red led and photo transistor detector.


INVERTING AMPLIFIER SCHEMATIC PCB TLV170

This design inverts the input signal, Vi, and applies a signal gain of –2V/V. The input signal typically comes from a low-impedance source because the input impedance of this circuit is determined by the input resistor, R3. The common-mode voltage of an inverting amplifier is equal to the voltage connected to the non-inverting node, which is ground in this design. D1 indicates the power, all connection can be done using CN1 header connector, Capacitors, Resistors, LEDs are SMD components size 0805. Op-Amp TLV170 from Texas Instruments.


Window Comparator/Voltage Sensitive Switch TLV1701

This circuit utilizes two comparators in parallel to determine if a signal is between two reference voltages. If the signal is within the window, the output is high. If the signal level is outside of the window, the output is low. For this design, the reference voltages are generated from a single supply with voltage dividers.

This 5V single-supply window comparator utilizes a dual open-collector comparator and two trimmer potentiometer to set the  window voltage. 2X TLV1701 was used in this design due to its low power consumption and open collector output, which allows the output to be pulled up as high as 36 V.


Quadrature Encoder to Clock and Direction Signal Converter Using LS7084


Constant Current Laser Diode Driver Using OPA2350 OP-AMP


4 Channels Optically Isolated I/O Board Using 6N137 Optocoupler


40Pin/28Pin dS PIC Development/Evaluation Board

The ds PIC Development Board is a development and evaluation tool that helps create embedded applications using dsPIC30F Digital Signal Controllers for motor control family. Sockets are provided for 28 and 40-pin devices in the motor control family.


Strobe provides regular flashes of light. Usually Strobes are designed using Xenon Tubes, Here is LED based simple solution can be used as strobe for entertainment and events and also as warning signals, Project is based on PIC16F1825 micro-controller with two digit frequency display.CAT4016 IC provided to drive 2 display.

Project provides TTL output signal, frequency 1Hz-25Hz, Tact switches provided to set the frequency.  Use solid state relay , BJT transistor or Mosfet at output to drive LED, choose right load driver as per LED required current.


Magnetic field sensor project using AD22151 IC from Analog Devices, The AD22151 is linear magnetic field transducer. The sensor output is a voltage proportional to a magnetic field applied perpendicularly to the package top surface. The sensor combines integrated bulk Hall cell technology and instrument technology to minimize temperature related drifts associated with silicon Hall cell characteristics.


The project has been developed to charge the SLA (Lead Acid Battery) . The project helps to charge 12V Lead acid battery up to 12Ah, specific current output possible altering the current sense Resistor. The bq24450 contains all the necessary circuitry to optimally control the charging of valve-regulated lead-acid batteries. The IC controls the charging current as well as the charging voltage to safely and efficiently charge the battery, maximizing battery capacity and life.


Metal Detector Circuit & PCB Using TDA0161


4 Channel Compact Relay Board Using SMD Components ULN2003


2 Channel SMD Components Based Relay Board Schematic, PCB Layout


ACS714-30A Current Sensor Module Schematic

30A Current Sensor using ACS714-30A

The Allegro ACS714-30A Current Sensor  provides economical and precise solutions for AC or DC current sensing in automotive systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and over current fault protection.


IslBGTact Switch PCB Board for Dual , Quad & 8 Tact Switch for Various Application


C059 - Multi interface IO board

10 Pin Box Header Connector to single line header connector module PCB Layout


SERIAL ATMEL PROGRAMMER CIRCUITSerial Atmel Programmer Circuit


PIC18F DEVELOPMENT BOARD USING PIC 18F4550 18F2550 (1)

PIC18F USB PIC Development Board

PIC18F USB Development Board will help you with your prototyping requirement with any 28/40-pin Microchip supporting USB interface micro-controllers.


6 DIGIT 7 SEGMENT DISPLAY MODULE SCHEMATIC (2)

6 DIGIT 7 SEGMENT 0.5INCH DISPLAY BOARD SCHEMATIC


4 DIGIT SPI DISPLAY USING 74HC595 SHIFT REGISTER (1)

4 Digit 7 Segment Display Using 74HC595Shift Register SPI

4 Digit 7-Segment Display using 74HC595 project drives four 7-Segment common cathode display using Serial Shift Register IC.


PIC 16F 18PIN PIC DEVELOPMENT BOARD (1)A

PIC16F 18 Pin PIC Development Board Using PIC16F628A Micro-Controller

PIC16F 18-pin Development Board will help you with your prototyping requirement with any of Microchip’s 18 pin of 16F PIC micro-controllers.


PIC 16F 28-40 PIN DEVELOPMENT BOARD (2)

PIC16F 28 & 40 PIN PIC Micro-Controller Development Board

PIC16F 28/40-pin Development Board will help you with your prototyping requirement with any of Microchip’s 28/40-pin of 16F PIC Micro-Controllers.


8 Channel Opto-Isolated Board (2)

8 Channel Optically Isolated Board 4 Channel Inputs & 4 Channel Outputs for I/O Using PC817


4X4 MATRIX KEYBOARD USING BIG TACT SWITCH (1)4 X 4 Matrix Keyboard project will add keyboard support to your project.


8 LED OUTPUT DISPLAY MODULE FOR MICRO-CONTROLLER DEVELOPMENT BOARD (3) 8 LED OUTPUT DISPLAY MODULE FOR MICRO-CONTROLLER DEVELOPMENT BOARD (1)8 LED Sink & Source Board For Micro-Controller Development Board Interface


8 TACTTILE SWITCH WITH HIGH OR LOW OUTPUT JUMPER (2)8 TACTILE SWITCH BOARD


PIC16F 28 PIN PIC DEVELOPMENT BOARD WITH LCD (1)

PIC16F 28 PIN PIC MICRO-CONTROLLER DEVELOPMENT BOARD WITH VARIOUS IMPORTANT ADD-ONS


PIC18F 28PIN PIC DEVELOPMENT BOARD WITH ZIP SOCKET (2)

PIC18F 28 PIN PIC DEVELOPMENT BOARD WITH ZIP SOCKET


8 CHANNEL RELAY BOARD WITH ON BOARD 5V REGULATOR FOR MICRO-CONTROLLER INTERAFCE (2)

8 CHANNEL RELAY BOARD WITH 5 V REGULATOR FOR EASY ARDUINO & PIC MICRO-CONTROLLER INTERFACE


8 TACT AND DIP SWITCH FOR MICRO-CONTROLLER DEVELOPMENT BOARD (1)8 TACT AND DIP SWITCH BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD


16X2 LCD MODULE WITH HEADER CONNECTOR (1)

16X2 LCD MODULE SCHEMATIC & PCB LAYOUT


8 CHANNEL RS485 DRIVEN RELAY BOARD (1)

RS485 8 CHANNEL RELAY BOARD


IMG_1226SERIAL PIC MICRO-CONTROLLER PROGRAMMER


SINGAL DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 (3)

SINGLE DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 SCHEMATIC


TEMPERATURE READER USING LM35 SENSOR AND PIC16F676 (1)

TEMPERATURE READER USING LM35 SENSOR & PIC16F676 SCHEMATIC


4 DIGIT 7 SEGMENT MULTIPLEXED DISPLAY (2)

4 DIGIT 7 SEGMENT 0.5INCH MULTIPLEX DISPLAY


AT89Sxx DEVELOPMENT BOARD PROVIDES (1)

AT89Sxx DEVELOPMENT BOARD WITH ZIP SOCKET & RS232 PORT


4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (2)

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT


PROTOTYPE BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (2)

Proto Board for Micro-Controller Development


J003

WARNING ULTRA BRIGHT LED BASED FLASHER USING 555 TIMER


8 LED FLASHER USING BC547 TRANSISTOR

8 LEDs flasher project simply flashes a set of 8 LED’s to give you that reason to attract attention, Project work well with PP3 9V batteries.


 AA-AAA BATTERY VOLATGE MONITOR (1)

AAA & AA Battery Voltage Monitor/Voltage Tester Using LM3914 Bar-Graph IC


0-10V_Monitor_PIC

Bar Graph Voltmeter 0 To 10V Using LM3914


Variable_Range_LED_Voltmeter_project_PicVariable Range Voltmeter Using LM3914


D005-500x500-500x500

Bar-Graph Lead Acid Battery Voltage Monitor Using LM3914


photo
0 To 20V Bar-Graph Voltage Monitor Using LM3914


Current_Sense_Switch_IMG_4786-e1460369295778

Current Sense Switch Using Op-Amp & Shunt Resistor Relay Output Range 1A to 3A


 SINE-WAVE GENERATOR USING XR2206 (1)

Sine Wave Generator Using XR2206 IC


 D009

Simple Function Generator/Pulse Generator Using 555 Timer


 Digital_Panel_Meter_Photo

Digital panel Meter ( DPM ) Using ICL7107 IC


 LUX_METER_PIC

LUX Meter ( Light Meter ) Using OP-Amp and Photo Diode


Traic Based Lamp Dimmer (2)Lamp Dimmer Using Traic


 XENON TUBE BASED STROBE

Strobe With Adjustable Frequency Using U Xenon Tube


4 LEDs Flasher

4 LED Flasher Based on 2 Green 2 Red & BC547 Transistor


LASER DIODE DRIVER (2)

Laser Diode Driver Using Transistors


18 LED Based Multiplex Chasser (1)

18 LED Chaser Multiplex Using CD4017


10 LED Chaser Using 555 and 4017 (1)

10 LED Chaser Using 555 Timer & CD4017


Automatic Dark Sensitive Lamp On-OFF switch (1)

Automatic Street Lamp On/OFF Switch Using Traic and LDR


30 LED Chaser (1)

30 LED Chaser Using 555 Timer & CD4017


Solid State AC Relay Descreet Circuit Using Traic (1)

AC Solid State Relay Traic & Opto-Coupler Based


Large Size Sound Sensitive Audio VU Meter Using High Power Halogen Lamps (1)

Jumbo Size Halogen Lamp Based Sound To Light VU Meter for Party


RGB LED BASED LIGHT EFFECTS USING MICRO_CONTROLLER (2)

RGB LED & Micro-Controller Based LED Light Effects


6 RGB LED PCB (1)

6 X 3 RGB LED Board


 PWM High Current Halogen Lamp Dimmer (1)

High Current PWM Halogen Lamp Dimmer


Sound to Light Effects Using OP-Amp LED and Microphone (1)

Sound To Light Effects Using LM358 Op-Amp LEDs & Microphone


photo5

200W Lamp Flasher Using 555 Timer With Frequency and Duty Cycle Adjust


4 Channel Relay Board Suger Cube (1)

4 Channel Relay Board Using Sugar Cube Relay 12V & BC547 Driver Transistor


8 Channel Relay Board Using Sugar Cube Relay and BC547 Driver Transistors (1)

8 Channel Relay Board is a simple and convenient way to interface 8 relays for switching application in your project.


8 channel optically isolated traic board (2)

Opto-isolated 8-Channel Triac Board is used for fast switching applications.  Ideal for switching mains circuits, lights, appliances and small load.


4 channel optically isolated traic board (4)

4 Channels Solid State Relay, 4 Channel Traic Board Optically Isolated for Inductive and Resisitve Loads


8 CHANNEL RELAY BOARD USING ULN2803 (1)

8 Channel Relay Driver Using ULN2803 & Sugar Cube Relay


ONE CHANNEL SUGAR CUBE SMD RELAY BOARD (1)

Single Channel Relay Board is a simple and convenient way to interface a relay for switching application in your project. SMD Components, On Board LM78M05 5V Regulator


ONE CHANNEL HIGH CURRENT RELAY BOARD WITH ONBOARD 7805 REGULATOR OPTICALLY ISOLATED INPUT (1)

One Channel High Current Large Size Relay Board Optically Isolated Input With On Board 5V Regulator


AC SOLID STATE RELAY A (2)

AC Solid State Relay


DC SOLID STATE RELAY USING OPTO-COUPLER GATE DRIVER AND MOSFET-A (2)

DC Solid State Relay Using MOSFET & Optically Isolated Gate Driver


4 Channen Relay Board Jumbo Relay

4 Channel Large Size High Current Relay Board Using ULN2003


4 CHANNEL RELAY BOARD USING ULN2003 AND BOX HEADER FOR MICRO-CONTROLLER DEVELOPMENT BOARDS (2)

4-Channel Relay Board-2 is a simple and convenient way to interface 4 relays for switching application in your project.


One Channel Relay Board Using BC547 (3)

One Channel Relay Board Using BC547


 2 CHANNEL RELAY BOARD USING BC547 (1)

Two Channel Relay Board Using BC547

2 channel Relay driver project can be controlled by feeding 2-12V trigger voltage, Very useful project for application like Micro-Controller based projects, Remote controller, Lamp on Off, and any circuits which required isolated high current and high voltage switching by applying any TTL or CMOS level voltage. Two LED works as operation indicator while in , 3 pins screw terminals to connect load and provides  both normally open and normally closed switching.


 4 Digit 7 Segment Display using 74HC595 PIC

7 Segment 4 Digit SPI Display Using 74HC595


4X4 Matrix Key Board (1)

4X4 Matrix Keyboard For Micro-Controller Development Boards


6 DIGIT 7 SEGMENT MULTIPLEX DSIPLAY MODULE SCHEMATIC HEADER INPUT (1)

6 Digit 7-Segment Multiplexed Display Module


AT89C2051 DEV STICK DOC (1)

89C2051 Development Stick


Multipurpose 18 PIN (16F628A) Micro-controller development board from Microchip (1)

Multipurpose 18 PIN (16F628A) Micro-controller development board from Microchip


RS 232 MODULE USING MAX232 (3)

RS232 Module Using MAX232


RS232 to RS485 Module USING mAX 485 & MAX232 (1)

RS232 to RS 485 Module Schematic Using MAX232 & MAX485


ANALOG TO DIGITAL CONVERTER (2)

Analog To Digital Converter Using ADC0808


ATMEGA 8L DEVELOPMENT BOARD (1)

Atmega 8 Development Board


ATMEGA 16 & 32 BOARD (2)

ATmega16/32 Development Board


C035_1

8 Channel DIP Slide Switch for Micro-Controller Development Boards with Pull UP Or Down Jumper and 10X Box Header


IN OUT BREAK-OUT BOARD 10XBOX TO SCREW TERMINALS

8 Channel Input/Output Board for Micro-Controller Development Boards Box Header to Screw Terminal Board


RS232 TO RS485 CONVERTER CIRCUIT USING MAX232 & MAX485 (2)

RS232 to RS485 Converter Board using MAX232 & MAX485


DTMF DEVELOPMENT BOARD FOR MICRO-CONTROLLER INTERFACE (2)

DTMF To Micro-Controller Development Board


EEPROM BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (1)

EEPROM Module Using 24CC Type I2C EEPROM for Micro-Controller Development Boards


GLCD ADPTER BOARD (1)

GLCD Adapter Board


I & O EXPANDER BOARD FOR MICRO-CONTROLLER DEVELOPMENT (1)

I/O Expander Board Using MCP23S17


LCD ADTPTER BOARD 16X2 (1)

16X2 LCD Adapter Board


RS232 OR RS485 DUAL PROTOCOL BOARD (1)

Dual Protocol RS232 OR RS485 Board Using MAX232 Or MAX485


RTC MODULE SCHEMATIC USING DS1307 (1)

Real Time Clock RTC Module Using DS1703


4 CHANNEL HIGH CURRENT DRIVER TRANSITOR BOARD FOR UNIPOLAR MOTOR (2)

4 Channel Transistor Based Output Driver For Unipolar Stepper Motor Driver and Relay , Solenoid Driver


40 & 28 PIN Development Boards on Board 3V3 5V Switching converters (5)

40 Pin & 28 Pin PIC Micro-Controller Development Board With On Board 3.3V & 5V Switching Regulator


 18PIN PIC Development Board PIC

18 Pin PIC Micro-Controller Development Board


USB TO UART USING MCP2200 (1)

USB To UART Converter Using MCP2200


RTC Module Using SMD Components DS1307 (2)

RTC Module Using DS1307 & SMD Components


6 digit spi display using 1 inch 7 segment display and CAT4016 ic (2)

6 Digit 7 Segment 1Inch SPI (Serial) Display Using Cat4016 IC with Current Control


 0 TO 5V Bar Graph Voltmeter (1)

0 To 5V Bar-Graph Voltage Monitor Using 20 LED & PIC16F886 SMD Board


 0 To 1Amp Bar-Graph Current Monitor Using 20 LEDs & PIC16F886 Micro-controller (2)

0 To 1Amp Bar-Graph Current Monitor Using PIC16F886 and 20 SMD LEDs


DIGITAL THERMOMETER (1)

Digital 2 Digit 7 Segment Thermo-Meter Using PIC1825, CAT4016, DS1820


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