Installing programs on Atmel AVR microcontrollers is officially cruel 🙂 fuse settings are a separate issue, especially when wrong fuse settings lock the processor is a bad situation. There is Atmel AVR Fuse Bit Repair circuit, but we are already unfamiliar with AVR, this job is even worse, if more processors accumulate in the future,…
In Vu meter circuits, the LEDs give light according to the level of the sound signal. In this circuit, the LEDs give light according to certain frequencies (various calculations and PWM control). Led colorful music circuit, dance lights or disco lights project made with ATtiny13 microcontroller. It allows the LEDs to light up according to…
Galvanic isolation for a logic analyzer with 8 channels. Galvanic isolation for Logic Analyzer with 8 channels. Suitable for use up to 2MBit with 2V level and a little faster at higher levels. As always, everything is freely available, including a circuit diagram, board, etching mask and even a Reichelt shopping basket. I have purchased…
I’ve been thinking about making a complete Arcade machine for years. I previously renewed my handmade arcade joystick and Arcade joystick table for the Emulator. I shared the joystick systems I made for the mame emulator in their articles. They worked very well, but they didn’t taste like the original machine, although it is important…
Matlab models of DC DC converters A study on standard DC DC converters with transformers, their applications and simulation results in Matlab Simulink software environment using Simscape library. A large part of the work is devoted to the theory and design of the transformer model, which is an important part of the transformer DC DC…
This study deals with the problems, structures, controls of industrial robotic arms and their role in Industry 4.0. The study describes the development and realization process of an industrial robotic arm model with 3D printing. Besides building the model, the job deals with firmware, software and inversion kinematics which are crucial for control. Detailed and…
The purpose of the Motor Driver Test card is to check any of the motor drivers used especially in CNC machines. The tester is connected directly to the motor driver board instead of the interface. The tester has 4 switches that determine the state of Direction Signals (change direction of rotation), Enable (drive enable), Step…
A simple 0-30V 0-3A regulated power supply circuit based on the NE5532 opamp IC that you can use in your electronics workshop. Basic parameters of the power supply: Input voltage 24 – 26 V AC, DC output voltage 0 to 30V, Output current 10mA – 3A. It’s an open circuit. The current limiting resistor is…
Simple 555 circuit. The water tank filling circuit is based on the NE555 timer IC. By measuring the water level in the tank, it automatically starts the water pump motor at low water level and stops the water motor when the water in the tank reaches the specified level. The circuit can be used for…
100W Amplifier circuit provides high power with less material. Output transistors 2 2SC5200 NPN transistors. PNP transistor is not used for output in this amp design. The operating voltage of the 100W Amplifier circuit is 2X46V DC. If you want to operate at higher voltage (max. 2X56V DC), you should use 2SC3858 or similar power…