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AVR 1.1V Internal ADC Reference Over-Voltage
When using the internal 1.1V reference for the ADC, if the analog input exceeds 1.1V, such as 2.5V, it will not harm the microcontroller. Instead, the ADC value will clip at 0x3FF. Based on practical experience, it has been observed...
Fireflies based on tiny AVR
When first discovering this article, it was noted that it is a great project utilizing only a few components. Microcontroller projects based on LEDs are of particular interest. This project is very simple and worth trying. It is inspired by...
battery charger based on avr atmega
A battery charger can be understood as a device designed to replenish the charge in a battery. An effective charger circuit should provide the necessary resources for efficient and safe battery charging. The AVR-Based Battery Charger utilizes the ATMega 8535...
Homemade Metal Detector Kit
A simple home project can quickly become problematic if it encounters electric cables, gas, or water pipes, or the central heating system. Using a metal detector allows one to check for metal objects within walls, ceilings, or floors beforehand. An...
Flashflex Microcontroller Control Of Character Lcd Module
The FM497 is an integrated electronic ignition controller designed for breakerless ignition systems that utilize Hall effect sensors. This device operates an external NPN Darlington transistor to manage the coil current, thereby delivering the necessary stored energy while maintaining low...
Industrial Building Automation System (IBAS) - 4
The two optical sensors will provide a count of individuals to the microcontroller, which will relay this value to MCU-II. The microcontroller will detect the entrance of any person through high-to-low pulse transitions on input pins A3 and A4.
The circuit...
8 MHz frequency meter using AVR microcontroller
This project measures the clock pulses supplied to the Timer input of the AVR microcontroller. The Bascom code counts the clock pulses over a duration of 1 second and displays the result.
The circuit for this project primarily consists of an...
Project [E-20] Infrared Data Transmitter
The AVR Basic Infrared Transmitter is a companion project to the Basic Infrared Receiver. This project is termed "basic" because it can be constructed using only 10 discrete components along with a standard AVR microcontroller. Together, these two projects enable...
AVR ISP programmer In-System Programmer
A programmer is available in the "AVR Software and Technical Library - April 2003" CD-ROM and has been published due to its stability and compatibility with AVR Studio 4. It has been tested with the AT90S2313 microcontroller and functioned correctly....