led Archives - Page 34 of 59 - Projects Tutorials Code Library for Atmels Atmega32 AVR

ATMEL AVR ATMega 8535/16/32 and ATMEL AT89S5x Family Learning Kit

Both Mainboard Features Pin compatible for 40-pin AVR and AT89S5x family Microcontrollers Single sided PCB, header for 4 I/O ports, ISP port and RS-232 port Built in +5V voltage regulator LM7805 with heatsink Built in +5V and +12V (depend on input voltage) with terminal screw connector for further expansion Onboard In System Programmer header Schematic […]

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AVR Programmer using ATTINY2313 microcontroller

AVR ATmega Projects, Microcontroller Programmer Projects / Ibrar Ayyub

INTRODUCTION AVR910 is a very useful programmer. It can program almost complete range of AVR chips. The original version made by Klaus is here, http://www.mikrocontroller-projekte.de/Mikrocontroller/AVR-Prog/AVR-Programmer.html. The programmer uses ISP capability of AVR chips. AVR910 first appeared in AVR910 application note by ATMEL. It is one of the fastest programmers for AVR. We can use AVR

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MBI5030 – 16ch LED constant current LED driver starter board

Electronics News Updates / Ibrar Ayyub

Macroblock MBI5030, 16-ch constant current LED driver with PWM, SPI-like interface, requires external grayscale clock. Known-good source: Kingelectronics, latest datasheets. The problem: you need the chip to figure out if your code actually works. And you also need the LEDs to see what’s going on – if at all. You could use a logic analyzer,

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Output number when button is pressed using Atmega16 microcontroller

AVR ATmega Projects, Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

This is simple demo program of reading button state, lighting LEDs, sending information via USART. 8 buttons are connected to Atmega16 port A, 8 LEDs to port B via current limiting resistors. While none of buttons arent pressed there is running light on LEDs performed, but when any of buttons is pressed then LEDs display

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Netduino and MAX721 interfacing for driving seven segment LED displays

Electronics News Updates / Ibrar Ayyub

In Day 3 tutorial, we learnt basics of seven segment LED displays and discussed about a time-division multiplexing technique that reduces the number of required microcontroller I/O pins to drive multiple seven segment LED displays. Today we will move a step further and discuss about a serial interface (SPI) for driving 8 seven segment LED displays. The technique

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Running TX433 and RX433 RF modules with AVR microcontrollers using Atmega8

AVR ATmega Projects, Interfacing(USB - RS232 - I2c -ISP) Projects, Radio Projects / Ibrar Ayyub

Sometimes in embedded design you may want to go wireless. Might be you will want to log various readings of remotely placed sensors, or simply build a remote control for robot or car alarm system. Radio communications between two AVR microcontrollers can be easy when specialized modules are used. Lets try to run very well

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LED-flashlight circuit works at voltages as low as 0.5V

Electronics News Updates / Ibrar Ayyub

View as PDF Most commercial LED flashlights use three AAA or AA batteries in series that produce 4.5V. The batteries then drive four white LEDs that connect in parallel. These LEDs can work at voltages as low as 2.7V and, in some cases, 2.4V. At those voltages, the LEDs become dim, and you must frequently

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IR Proximity Motor Control

News / Ibrar Ayyub

Here’s a Motor Control via Proximity Sensing. In this article, we go step-by-step through the process of understanding, designing and building a system that uses an infrared proximity sensor for input, correlates that input to how far away an object is from the sensor and then drives a motor and some LEDs at distinct speeds depending upon the proximity of the object.

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Door Chime Privacy Sentry using Attiny12

Home Automation Projects, Security - Safety Projects / Ibrar Ayyub

An ATtiny12 controller as a timer and some switching circuitry turns the doorbell off for 10 hours at the same time each day. The string of resistors across the top of the board are series connected to make a 728 Ohm 2 watt resistor. The slide switch is used to switch the circuit between the

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Nikon Camera Remote Control using ATtiny13 Microcontroller

Video - Camera - Imaging Projects / Ibrar Ayyub

This is an IR remote control for Nikon cameras. It is compatible with the Nikon ML-L3 remote control. Supported cameras include: D40, D40X, D50, D60, D70, D70s, D80, Coolpix 8400 8800. This design is based on an idea from http://www.bigmike.it/ircontrol/. The circuit is extremely simple: an ATtiny13V, button, transistor, resistor, IR diode and 3V battery.

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