The DRV101 is a low-side power switch employing a pulse-width modulated (PWM) output. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, actuators, and positioners. The DRV101 module is also ideal for driving thermal devices such as heaters and lamps. PWM operation conserves power and reduces heat rise, resulting in…
This project is a microphone pre-amplifier based on LM358. DESCRIPTION This is easy to construct microphone pre-amplifier project using compact electret condenser microphone. The pre-amplifier is important building block of many audio communication systems. Circuit has been built around Op-Amp LM358. Power supply : 5 to 12 VDC @ 10 mA Output: Gain Approx. 100 On-Board…
This project is a 14W Stereo Audio Amplifier based on LM4730 IC. DESCRIPTION 14W Stereo audio power amplifier build around LM4730 IC. The LM4730 is stereo audio amplifier capable of delivering typical 14W per channel of continues average output power a 4 Ohms or 8 Ohms load with less than 10% THD+N from 20Hz to 20Khz frequency. Each amplifier…
This project is a 5.5W – 2 Channel Audio Amplifier based on LA4445 IC. DESCRIPTION The small 2 Channel amplifier constructed around SanyoÂ’s LA4445 IC delivers 5.5Watts +5.5 Watts at 4 ohm load, supply in 12V DC 2Amp, Input impedance 30K. SPECIFICATIONS Dual Channels output : 5.5W Minimum External Parts Very small pop noise at the time…
This project is a Mini Stereo Audio Amplifier based on TDA2822 IC. DESCRIPTION The dual low power amplifier built around TDA2822 8pin DIP. IC, it is mainly designed to use in portable players, radios and other building block project. A 3V supply can be used to drive headphones providing 20mW in 32 Ohms per channel, and a…
This project is a 6.5W Stereo Audio Amplifier based on TDA2004 IC. DESCRIPTION The 6.5W Stereo Audio Amplifier project built around TDA2004 IC. The TDA2004 is a class B dual audio power amplifier, specifically designed for car radio applications etc. SPECIFICATIONS Power supply input 15 VDC Output power: 2 X 6.5 W, 4 Ohm / 2 X…
This project is a 10W Stereo Audio Amplifier based on TDA1521 IC. DESCRIPTION The project built around Philips TDA1521 IC, The project provides high quality audio 2X10W Audio output. The device is specially designed for mains fed applications, (e.g. Stereo TV Sound and Stereo Radio). The circuit designed for asymmetrical power supply systems. SPECIFICATIONS It has few external components…
1.6W Mono Audio Amplifier Project is based on TDA7231, which is class AB power amplifier with a wide range of supply. FEATURES Power supply: 5 To 12 VDC Output: 1.6 W, 4 Ω / 1 W, 8 Ω Low crossover distortion, soft clipping PR1 Preset for Volume Adjust Terminal pins for connecting power supply, input…
The Tiny Mic Preamplifier based is based on a single transistor amplifier design. It amplifies the output of the electret condenser microphone. Good choice for Karaoke. SPECIFICATIONS Power supply: 5 ~ 9 VDC @ 2 mA Provides standard audio signal PCB dimensions 26 mm x 56 mm SCHEMATIC PARTS LIST PCB DOWNLOADS mic_preamplifier.pdf
2 Channel Mini easy to use Relay shield for Arduino Nano consists of ULN2003 IC and 2 Mini 12V Relays with NO/NC contacts of 2A-24V Load Capacity. ULN2003 used as Relay coil driver. Relay can be controlled from D3 and D4 of Arduino Nano. Three-pin Header Connector CN1 and CN2 provided to connect the Load. Relay has normally open…
4 Digit Multiplexed display shield for Arduino Nano with onboard 2 tactile switches and LM35 temperature sensor. This shield helps you to develop many projects that require 4 digit display. For example, a thermometer can be made using on board LM35 sensor. 7 Seven segment multiplexed display is a tiny board and has been designed…
Arduino Nano Bar-Graph display with universal op-amp shield consists of 10 LEDs and single low voltage general purpose LMV321 op amp including few capacitors and resistors connected to op-amp pins. The op-amp proto area can be configured without any modifications to the board and all that is necessary is to select the correct resistors and…
8 Digit serial numerical display shield for Arduino has been designed for various applications like digital clock, stop watch, score display, temperature meter, frequency counter, digital meters etc. The circuit uses popular MAX7219 IC and two common cathode 0.5inch red seven segment displays. The MAX7219 is a compact, serial input/output common-cathode display drivers that interface…
4 Channel Relay Shield for Arduino UNO is a simple and convenient way to interface 4 relays for switching applications in your project. Very compact design that can fit on top of Arduino UNO. Project requires 12V DC supply, all 4 trigger inputs require TTL signal, Relay-1 to Relay-4 inputs connected to D8 To D11…
2 Channel Relay Shield for Arduino UNO is a simple and convenient way to interface 2 relays for switching applications in your project. The board has been designed using large current relay that can handle a load up to 30Amps. Relay circuit is optically isolated to prevent any kind of EMI noise. The board directly…
This is another Arduino Nano shield which can drive a Brushed DC Motor in both directions with PWM signal for speed control and it also includes current trip feature. Project is based on DRV8870 IC which can handle current up to 3.6Amps, The shield also includes an IR sensor and trimmer potentiometer. Trimmer Pot helps to develop speed motor control application,…
This shield enables you to interface many different devices to Arduino Nano using optically isolated inputs/outputs. The circuit consists of 4 Input channels and 4 Output channels and all 8 I/O lines are optically isolated. This project can help in various industrial applications where EMI noise and high voltage lines can damage the Arduino Nano or other circuits connected…
The board consists of 8 x RGB LEDs 1W, BJT transistors on each LED, series resistor across the LED for current limiting, a hole to mount 18mm optical sensor which may be a defuse sensor for object detection with Arduino nano. The board can be programed to create multiple RGB LED related applications, like interactive…
This project includes 10 LEDs of 1W each, and provides high intensity lighting that can be used in various applications. The board is made in Arduino shield form and can be used with Arduino Uno or Mega. Each LED can be controlled individually connected to digital pins D2-D11 of Arduino. Circuit requires 9-12V supply, it…
