Fading LED with PIC microcontroller
This article shows how to create a fading/dimming effect of the LED using PIC micro-controller. For similar design based on Arduino click this link.Controlling LED brightness using PWM is a relatively simple task and can be accomplished by configuring PIC16F877 ...
Fan Speed Monitor
Fan Speed Monitor is another simple design based on PIC16F876A microcontroller. Two similar posts about ways of controlling and monitoring fan speed were recently published. PWM Fan Controller and 2 Channel PC Fan Controller. Current article however implements a different ...
Response Time Meter
If you ever thought how fast you can react to external stimulus here is the circuit that can measure your response time. It measures the time it takes for you to press the push button in response to turning the ...
10Bit 7-Segment Digital Voltmeter 0-24V
This is an upgrade to recently published Simple Digital Voltmeter.Few improvements were done to hardware and software.DVM operating range was slightly increased up to 24 V Max, however the most significant change is that the code now uses full 10 bit of ...
Arduino Ohm Meter
Arduino Ohm Meter is one of the simplest circuits that can be built with minimal number of required components. As can be seen from design schematic a standard 2x16 LCD display and 3 resistors are all you need to complete ...
Arduino 4-Digit 7-Segment LED Voltmeter MAX7219
Here is another version of Arduino based voltmeter. This time it uses 4-digit 7-Segment LED display and MAX7219 Display Driver. For similar design with 2x16 LCD display click this link. Also you can look at PIC16F876 implementation in my previous ...
Blinking LED with PIC16F684
This very simple design shows how to make a blinking LED using PIC16F684 MCU. In my previous post I’ve used PIC16F877/86 however most of basic circuits do not require a lot of I/O pins and PIC16F684 small 14 pin package is more ...
Function Generator
Have you ever wondered how to generate a sine wave using PIC microcontroller. In this post I’ll show you a simple circuit design that can generate arbitrary wave forms including sine by using MCU and PCF8591 D/A converter. For similar design ...
1Hz Clock Generator using PIC16F876
In this article we’ll see how to generate 1 Hz clock with PIC16F876/877 PIC microcontrollers. 3 different approaches will be demonstrated. The most basic solution is to use nested loops to “waste” enough instruction cycle time in order to produce ...
Dual Voltmeter Amperemeter LCD
In this post a simple Digital Dual Voltmeter and Ampere meter design will be shown. It uses PIC16F876A microcontroller and 2x16 LCD display and has 2 input channels for measuring voltage in 0-25v range and current up to 500mA. The ...
