MCU Circuits
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How to handle digital input/output(I/O) in Avr Microcontroller? Explained using basic programs and circuit to glow an LED,generate stepper motor sequence,read push button switch and key debouncing.... -
Heart rate monitor using 8051 microcontroller. Measures the heart rate from the finger tip using IR diode photo transistor pair (Photoplethysmography). AT89S51 is the microcontroller used here.... -
This article explains how to add 32K external crystal/clock source to Atmel AVR micro controller Atmega8 with circuit diagram & C program.... -
Interfacing ADC to 8051 microcontroller. ADC0804 is interfaced to microcontroller AT89S51. Complete circuit, theory and program in assembly language.... -
This is a simple type remote control by using RF communication without microcontroller. In this project a remote has been designed for various home appliances like television, fan, lights, etc. It gives lot of comfort to the user since we can operate it by.... -
Simple 0-5 digital voltmeter using 8051 (AT89S51 microcontroller) with circuit diagram and assembly language ASM code. Simple digital voltmeter.... -
Analphanumeric low cost LCD Display is very essential for may small and big projects to Displayvarious type of information. Hitachi HD44780 Chipset based 16x2 char LCD is Really very cheap andeasily available in the local market. In this project we are going.... -
Can work in all 2323 chips but better is AT90LS2323 with working voltage 2.7 6 volts. The micro controller that I use is AT90S2323 with working .... -
Do you know our 8051 microcontroller can play music tones, here s an sample. The circuit & code given here will play the music for “wishes you to be .... -
Cymbet Corporation offers rechargeable solid state batteries for advanced microcontroller power backup. We are a leader in thin film energy storage.... -
The ADUC814 MicroConverter is a fully integrated 12-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. .. -
The ADUC816 is a complete smart transducer front-end, inte- grating two high-resolution sigma-delta ADCs an 8-bit MCU, and program/data Flash EE Memory on a single chip. This low power device accepts low-level signals directly from a transducer. The two.... -
The ADUC831 MicroConverter is a fully integrated 12-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. For detailed documentation on the.... -
The ADUC832 MicroConverter is a fully integrated 12-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. The ADUC832 is 100% hardware.... -
The ADUC836 MicroConverter is a fully integrated 16-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. The ADUC836 is 100% backward.... -
The ADUC841 ADUC842 ADUC843 are complete smart transducer front ends, that integrates a high performance self- calibrating multichannel ADC a dual DAC and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible) on a single chip. The.... -
The ADUC845 MicroConverter is a fully integrated Dual 24-bit, Multi-Channel Sigma Delta ADC and Flash Microcontroller on a single chip. This device is a multi-channel extension of ADIs popular ADuC844 and ADuC846 MicroConverter family and is optimized for.... -
AH1751 is a single-digital-output Hall-effect Sensor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an Amplifier to amplify Hall voltage, and a Comparator to provide switching hysteresis for noise.... -
The ATA5423 ATA5425 ATA5428 ATA5429 is a highly integrated UHF ASK/FSK multi-channel half-duplex trans- ceiver with low power consumption supplied in a small 7 x 7 mm QFN48 package. The receive part is built as a fully integrated low-IF receiver, whereas.... -
The ATR0981 is a monolithic IC manufactured using Atmels advanced SiGe technol ogy. The IC performs a transmit and receive front-end function, dedicated for a frequency range of 300 MHz to 500 MHz. It consists of a Low-Noise Amplifier (LNA) and a Power.... -
Introduction The ignition Timing lights in common use range from simple neon to complex units. Neon Timing lights have a drawback that due to their low light output, the user is forced to operate them in subdued lighting. This becomes a safety hazard as one.... -
This circuit also prevents the shutdown circuit of the IR2161 from operating in the normal way and therefore the external SCR based protection circuit also needs to be added. .. -
The FM497 is an integrated electronic ignition controller for breakerless ignition systems using Hall effect Sensors The device drives an NPN external darlington to control the coil current providing the required stored energy with low dissipation. This.... -
The FX919A is a CMOS integrated circuit that contains all of the baseband signal processing and Medium Access Control (MAC) protocol functions required for a high performance 4-level FSK Wireless Packet Data Modem. It Interfaces with the modem host processor.... -
The MIC2199 is a synchronous buck switching Regulator controller. An all N-Channel synchronous architecture and powerful output drivers allow up to a 20A output current ca- pability. The MIC2199 operates from a 4. 5V to a 32V input and CAN be programmed for.... -
The LinkSwitch-LP family is designed to replace inefcient line frequency linear transformer based power supplies with output powers < 2. 5 W in applications such as cell/cordless phones, PDAs, digital cameras, and portable Audio players. LinkSwitch-LP may.... -
Introduction The MIC2290 is an internally compensated standard step- up Switching Regulator with an integrated power Switch and Schottky Diode The attribute of an internal power Switch and Schottky Diode makes the MIC2290 the most optimized solution for 48V.... -
Introduction The design of off-line constant voltage, constant current (CVCC) power supplies NCP1014 for cell phone, hand tool, and similar Battery Chargers CAN present several challenges if low cost and circuit simplicity are necessary, yet good performance....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
An Inverter is a device that converts 12 volts d.c to 120 volts a.c. , which is what we use in...
1 kHz is a commonly used test frequency, and I resolved to see if I could make an inductance...
This is an IR remote control for Nikon cameras. It is compatible with the Nikon ML-L3 remote...
A lot of FM transmitter circuits have been already published here. This just another one, a...
Every innovations starts from a simple day to day life problem like you watching IPL in TV and...
4013 pairs of D-type flip-flop in the astable multivibrator is used as a binary divider output,...