Microcontroller projects involve using programmable devices, like Arduino or ESP32, to control electronic systems and perform automated tasks. These projects range from simple LED blinkers to advanced robotics, integrating sensors, actuators, and wireless communication. They offer a hands-on way to learn coding, electronics, and automation.
AVR High Voltage Programming (Fuses Rescue) While working on a new prototype for my GPS module for Yaesu VX-8DR/DE transceivers, I made some newbie errors burning incorrect fuses into ATmega328P microcontrollers and bricked them. After some research I found MightyOhm’s High Voltage Programmer which could bring them back to life. His programmer was designed as …
Features Frequency measurement Voltage input Power supply Liquid Display Crystal Measurement display area Information displaying area: Auto triggering 10Hz – 7.7 kHz (firmware 2.0 and above) 24V AC / 30V DC 12V DC 128×64 pixels 100×64 pixels 28×64 pixels (Used from firmware 2.0 and above) Auto Introduction A few months ago as …
Sometimes, when developing devices on 8- and 14-pin AVR microcontrollers, it is necessary to use the Reset pin as an input/output line. This can be done by setting the appropriate Fuse-bit configuration. But after these actions, access to the microcontroller for in-circuit programming is lost, because we disable the Reset line. We will consider a …
Restoring the Fuse-bits configuration of ATtiny13, ATtiny25/45/85 (HVSP) Read More »
USB programmer for beginners Now we will assemble a USB programmer for beginners (beginner radio amateurs), most will say this is a complex circuit, let’s start with LPT, but I want to say that the circuit is very simple, and you only need to program it once and don’t worry. Programmer circuit diagram As …
Programmer PIC AVR eeprom I made a programmer for AVR, PIC and EEPROM, I don’t use it now, but nevertheless, the design can be said to be a must have – simple and works from a COM port. The diagram was in the Radio magazine and on Radiokot, slightly modified. I have a few more …
HOW TO PROGRAM MicroCONTROLLER FOR CLONE PI W Many radio amateurs (especially beginners) want to assemble a metal detector. At first, they assemble circuits on logic, but then it is time to master devices on microcontrollers, since they can be relatively simple with good characteristics. Here the PROGRAM MicroCONTROLLER FOR CLONE PI W. One such …
Introduction This project is a metal detector using a frequency counting approach. It can generate an audio output, or connect to a computer using a 5 V TTL serial connection. PIC Based Metal Detector Circuit The circuit for this project consists of an LC oscillator with a frequency of around 4 MHz and a PIC microcontroller which …
Pulse Width Modulation (PWM) is a powerful technique that varies the pulse width by keeping the frequency constant. This technique is currently used in many control systems. The applications of PWM are not limited, it is widely used in motor speed control, measurement, power control, and communication, etc. In PWM technique, analog output signals can …
The working principle of the Hall sensor is based on the Hall effect proposed by Edwin Hall in 1869. The proposed statement says: “The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to the current in the conductor and an applied magnetic field perpendicular to the …
In this tutorial, we will show you a way to make a wireless thermometer using two PIC microcontrollers. One of the microcontrollers (PIC16F688) measures the voltage from the LM34 and converts it into an ADC value which is then sent out. The receiver will receive the data and then display the message on the LCD. …
wireless thermometer using a PIC microcontroller Read More »
