Arduino

Arduino Compatible 4 Digit 7 Segment Display Counter (0000-9999)

4 Digit Arduino based counter is simple project using 4-digit 7 segment common cathode display, Atmega328 chip on board and 2 tactile switches. Projects works with 5V DC. Onboard connector helps to program the Arduino code and boot-loader


Arduino stair led light using 10 ledS 2 tactile switches

I have tested simple concept stair LED light. project contains, Arduino Nano, 10X1W LEDs, 2 Tactile switches.  Arduino code can be downloaded using link, its modified code  from original code.  I have tested this project  with 10 LEDs, number of LEDs can be increase as per requirment and available pins on arduino, Arduino Mega provides liberty to use many pins or using 74HC595 serial to parrelel converter can help to use tons of LEDs.


Brushed DC Motor Controller

Brushed DC Motor controller using Arduino UNO, Project controls the speed of motor using potentiometer and Direction using push switch, project built using Arduino UNO and LMD18201 IC, PWM duty cycle span 0 to 100%, frequency 900Hz. Supply up to 50V DC and Maximum load up to 3Amps with large size heating and fan on heatsing on motor driver IC.


Arduino battery level monitor using 15 leds (1.5V or 1.2v battery)

I am here with new project call battery level monitor, Project is Arduino compatible and display battery level using 15 LED’s bars, Arduino code is return to test the 1.5V battery however 1.2V alkaline battery also can be check. The circuit provides 0.1V resolution , means each LED’s display 0.1V. Project required 5V supply. Note : This Arduino compatible project


Arduino PID Brushed DC Servo Motor Position Control Using Joystick

Thanks raydike for the code, Motor has 1000 Lines Encoder motor moves half rotation following joystick, its takes approx 900mA current with 12V DC input. Features Supply 12V-24V DC L298 For Motor Arduino UNO Motor Movement Half Rotation Encoder 1000 Lines Encoder with Incremental A and B Channel DC Motor 24V DC Brushed type Gear Harmonic Drive 50:1


Arduino Compatible 15 Bar-Segments Voltmeter ( Range 0-5V)

I am here with New Project>>> 15 Segments Voltmeter, this project is Arduino compatible, The project reads 0-5V DC on analog input  A1 of Arduino and drives 15 segments of 5MM LED’s mounted linearly , measuring range of the circuit is 0-5V DC, I have used potentiometer as 0-5V power source for testing purpose, remove potentiometer and apply 0-5V dc on analog pin A1 of Arduino and see the magic. Operating voltage 5V DC. Each LED indicates 0.34V. Gerber file is available on request. A LED bar graph can be defined as a visual representation of information received on analog input of Arduino.


15 LED’s Bar-Graph Control with Joystick and Arduino

Joystick analog value print on 15 LED’s Bar-Graph,first you read the analog input. You map the input value to the output range. when move the joystick led will follow left and right direction, in center only one LED on.


ADXL203 Accelerometer Display on 15 LED’s Bargraph

The Circuit senses analog voltage from ADXL203 Tilt/Accelerometer sensor and drives 15 LEDs. providing a linear analog display. This ADXL203 Accelerometer project shows, how to read an analog input on analog pin A1, and print it out to 15 Bar-Graph LED’s. The board is Arduino compatible and hold ATmega328 chip , 15 LED’s with 330 Ohms resistors. Supply 5V DC.


Experiment with 15 LED’s Arduino Board + DRV5053 Hall Effect Sensor

My experiment with DRV5053 linear hall effect sensor + 15LED’s Bar-graph + Arduino, the project shows how to read an analog input on analog pin A1, and print it out to 15 Bar-Graph LED’s. Bar-Graph board is Arduino compatible and hold ATmega328 chip on board, 15 LED’s with 330 Ohms series resistors. Supply 5V DC.


Arduino Prints AD22151 analog information to serial monitor


15 LED’s Arduino Bar-graph Display and AD22151 Magnetic Field Sensor

My experiment with AD22151 Magnetic field sensor and 15LED’s Arduino Bar-graph display, the project shows how to read an analog input on analog pin A1, and print it out to 15 Bar-Graph LED’s. Bar-Graph board is Arduino compatible and hold ATmega328 chip on board, 15 LED’s with 330 Ohms series resistors. Supply 5V DC.  


Water Level Monitor Using pressure sensor & 15led’s Arduino bar-graph display

Project name “Water level monitor using pressure sensor” I have tested this project with Arduino 15 LED’s Bar-Graph monitor and MPXV5010DP sensor, sensor included inbuilt signal conditioning circuit, output is sufficient to drive the ADC of Arduino, I have used A1 analog pin as input. Water level is around 9 Inch. Operating voltage of this circuit 5V DC.


Arduino PWM Generator with duty cycle display

I wanted a PWM signal output from Arduino with PWM duty cycle display………. so here is my project, which generate PWM signal with display, PWM adjustable duty cycle 0-100% and frequency 970Hz output on D5 pin of Arduino. I have tested this project on OLEDuino board. This tiny board has ATmega328 chip and connector for Arduino programming and boot-loader burning


LED Dimmer With PWM Display

LED Dimmer with PWM display, this project has been design to use for TV promo shooting purpose, where lights required to set the intensity with display


4 Digit 7 Segment Multiplexed Arduino Compatible Display Board

Tiny 4 Digit 7 Segment Arduino compatible module to developed to create few display related projects like, counter, timer, thermometer, games, volt meter, on board connector provided to program the Arduino boot-loader and Arduino code using Arduino IDE.


Arduino 4 channel on-off (toggle) switch

Arduino based 4 channel toggle switch using 4 relays, 4 tactile switches, an Arduino Nano, the circuit required 12V DC, the relay can handle load up to 7Amps 230V DC or 7Amps/30V DC.


Arduino Nano 4 Channel Relay Shield

The Relay Shield is a module with 4 mechanical relays that provides you an easy way to control high voltage using Arduino Nano. 4 Channel Relay Arduino Nano shield contains onboard 4 relays, TSOP1838 Infra-Red Sensor, NRF24L01 RF transceiver module, 4tactile switches.  The circuit described here can be used for many applications like the infra-red remote controller, RF remote controller, 4 channel toggle switch.


20 LED Knight Rider-2 Using Arduino Mega and 20 LED Board


Arduino 20 LED Knight Rider Using 20 LED Board and Arduino Mega


Digital Voltmeter Using Arduino Nano, 16X2 LCD and Multi-Project LCD Shield


Knight Rider LED Effects using Arduino and 10X3W White LEDs


Arduino Based DC Motor Speed Controller with 16X2 LCD

The DC motor controller has been designed using multi LCD Arduino Nano shield, circuit, PCB layout  and Arduino code available at our website www.twovolt.com , it can control DC motor 7-12V DC , current load up to 5amps. Speed of motor can be set using trimmer potentiometer, and LCD display shows the Bar-Graph of speed. Potentiometer is connected to Analog Pin A0 and Digital pin 9 is PWM out goes to gate of Mosfet. 


Multipurpose Compact 16X2 LCD Shield For Arduino Nano

Compact multipurpose Arduino Nano 16X2 LCD shield can be used to develop various projects, shield provided with various things, LM 35 Temperature sensor, 3X Tactile Switch, Vertical Trimmer Potentiometer, 12V Relay with NO/NC output, power MOSFET, AC714 current sensor and 16X2 LCD.


LED SEQUENCER USING 11 LED WITH BUZZER SOUND USING ARDUINO NANO

Light Effects and Sound Effects Arduino Nano shield, shield contains 11 LEDs ,one buzzer and INA198 current measurement , shield can be used to develop various projects like LED Bar-graph Volt Meter, Bar-Graph Current Meter, LED light effects, Warning light and sound.


Temperature Meter using LM35 Analog Sensor and Arduino Nano LCD Shield

Another project which display the ambient temperature on 16X2 LCD, Project is based on compact multipurpose Arduino Nano LCD shield and LM35 analog temperature sensor, shield also provided with 3 Tactile Switches, Relay, Power MOSFET, Trimmer Potentio-meter to create multi projects. Circuit works with 5V DC, can be power up from USB or separate header connector.  


10 LED Bar-Graph Display- 10 Segment Bar-Graph Voltmeter Arduino Nano

Turns on a series of 10 Segments of LEDs based on the value of an analog sensor. This is a simple way to make a bar graph display. This method can be used to control any series of digital outputs that depends on an analog input. Trimmer Potentiometer and Analog joystick used to test the code.


Light Effects and Sound Effects Arduino Nano

Light Effects and Sound Effects Arduino Nano shield, shield contains 11 LEDs ,one buzzer and INA198 current measurement , shield can be used to develop various projects like LED Bar-graph Volt Meter, Bar-Graph Current Meter, LED light effects, Warning light and sound.


L298 Dual/Single DC Motor Driver Shield Arduino Nano

Dual Motor L298 H-Bridge Control project can control two DC motors OR single motor with 2X current. The circuit is designed around popular dual H-Bridge L298 from ST. This board can be configured to drive a single motor with high current rating also. This can be achieved with the help of jumpers on the board. An onboard 5V regulator can take a maximum of 18V of DC input. Should you wish to drive this board with higher voltage then 18V, you will need to connect a external 5V regulated source to the logic circuit. For this you will need to remove J-5V. This board can fit in any small toy or robot due to small size and very low profile. L298 IC is mounted under the PCB in horizontal position to make board small and low profile to fit any small robot. On board 5V regulator can be used to power up external Micro-Controller board as well as internal logic supply.


4 Channel Relay Driver Shield For Arduino Nano

Quad Channel Relay Board Arduino Nano Shield is a simple and convenient way to interface 4 relays for switching application in your project.


LED Sequencer Using 10 White LEDs of Each 3W and Arduino

The 10 LED sequencer circuit published here is based on Arduino Uno and 10 White LED board. The project contains 10 LEDs of each 3W, provides high intensity, can be used in various applications. The board can be connected to Arduino Uno, Arduino Mega, Arduino Nano or Raspberry Pai , each LED can be controlled individually, I have connected LEDs to pin D2-D11 of Arduino. LED board required supply 5V DC, it can work with higher  supply by changing current resistor across LEDs, Large size Bar-graph monitor, led sequencer, strobe, LED light effects are possible applications with this board.


ARDUINO NANO LED WARNING LIGHT WITH BUZZER 11 LED SEQUENCER

Project published here is simple 11 LED and Buzzer shield for Arduino Nano, shield can be used as bar-graph monitor, buzzer sound effects, the simple example code used to show warning LED including buzzer sound. Circuit works with 5V DC. Shield also provided current sensor circuit which is no use in this project can be abandon. All LEDs 1206 SMD, All resistor are 0805 SMD.

Light Effects and Sound Effects Arduino Nano shield, shield contains 11 LEDs ,one buzzer and INA198 current measurement , shield can be used to develop various projects like LED Bar-graph Volt Meter, Bar-Graph Current Meter, LED light effects, Warning light and sound.


Temperature Controlled Fan ON-OFF Switch Using Arduino Nano 16X2 LCD and LM35 Sensor

Compact Temperature controlled fan on/off switch is based on Arduino Nano multipurpose TWOVOLT shield, the circuit consist LM35 temperature sensor, 16X2 LCD, 12V relay including driver transistor, the circuit works with 12V supply and can control any fan from 12V to 230V AC, for testing purpose I have connected 12V DC fan. At the normally open switch of relay. The shield has many other parts can be omitted if not required, refer circuit diagram for more info. A relay can switch load up to 7amps supply 5V to 230V AC.


Arduino Based Stop Watch includes 16X2 LCD, Switch

Simple 16X2 LCD based stop watch, the project tested on multi LCD shield, the project has 3 switches, start, stop and reset, project works with 7-12V Dc supply or USB power input, code is written for Arduino Nano. Schematic, PCB layout and code is available at our website, its open source project.


LED Dimmer Using Arduino 16X2 LCD and Potentiometer


RS485 Arduino Shield , PCB Layout and Schematic


2 Channel Relay Shield for Arduino UNO Circuit and PCB layout

2 Channel Relay shield for Arduino UNO can be used in several applications like remote control, on/off AC or Dc load and any circuits which required isolated high current and high voltage. Relay 1 connected to Digital pin D2 and Relay 2 can be controlled through D12 of Arduino PIN. Both relay has optocoupler in input for isolation which protect Arduino from any EMI noise and complete isolation between high volt/current at relay outputs. Relay shield required separate 12V DC. Two LED indicate the Relay operations. J1,J2 provided In case single supply for relay and Arduino required.


17 Channel Optically Isolated I/O Shield for Arduino Uno Using LOC111, PC817,6N137 Opto-couplers


 


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