An extremely simple and low-cost Sine/Square wave generator, known as the “Custom Function Generator,” is developed based on the Analog Devices AD9835 Direct Digital Synthesis (DDS) Generator chip.. The frequency can be set for any frequency from 1Hz to 10MHz in 1Hz resolution steps! All this with three push buttons and a novel “sliding window” […]
Another DIY function generator using PIC16F628 Read More »
How to interface LED with Microchip’s PIC microcontroller? How to connect LEDs to a PIC microcontroller? LED interfacing is the stepping stone for microcontroller development. This is a simple embedded program for PIC 16F877A to interface LEDs, suitable for beginners who wish to study basics of embedded microcontroller programming. The program is developed through Micro
During the last months, a new WS2812 alternative appeared on the market: The SK6812. I finally managed to get my hands on some of them to take a closer look. In most aspects these devices are basically clones of the WS2812. What is interesting however, is that the manufacturer came up with a couple of
The SK6812 – another intelligent RGB LED Read More »
Microchip has included a new power building block in a microcontroller aimed at LED lighting. Called the PIC16(L)F1769, the family has the first PICs to offer two independent closed-loop channels. The firm has steadily been introducing power control peripheral blocks over the last three years – so-called ‘core independent peripherals (CIPs), including for example its
Microchip aims at LED car lighting Read More »
Usually We need embedded systems inside devices, particularly the so-called intelligent devices, to communicate with a command/control/administrative center. Typical such situations could be a remote security camera that can send you video clips when queried, an embedded system that can send status when checked through a web browser or a vending machine that is capable
How to Implement Embedded Ethernet Read More »
In this article, we will show how to drive a 7 segment LED Display using a PIC16F690 microcontroller. This PIC16F690 microcontroller chip is actually a part of the PIC2 Starter Kit, so we will actually be using this starter kit to drive the LED Display. A 7 Segment LED Display is an electronic device that
PIC16F690 Microcontroller Circuit- How to Drive an LED Display Read More »
This post provides the LED blinking code (compiled in MPLAB + HI-TECH C) for PIC18F452. Complete project code and the proteus simulation can be downloaded from the Downloads section at the bottom of this post. The following diagram shows the required circuit. In this project a crystal of 10MHz is used with PIC18F452. This crystal frequency is fed
PIC18F452 LED Blinking Code and Proteus Simulation Read More »
Couple of weeks ago I purchased from eBay one of these amazingly cheap an useful modules with MAX7219 LED driver and 8 digit LED display. It is ideal for frequency counter project. The problem was the absence of library for PIC microcontrolers. Luckily, I found a great library for Arduino and I reworked it to
100MHz frequency counter with PIC16F628A – LED Display Read More »
Abstract: A circuit and program listing for using the MAX6955 LED display driver with a PIC microcontroller and 14-segment displays. The MAX6955 is an LED display driver with an I2C™-compatible, serial interface capable of supporting Fast Mode speeds up to 400kHz. It is capable of driving sixteen 7-segment, eight 14-segment, eight 16-segment or 128 separate LEDs.
Using the MAX6955 LED Display Driver with a PIC Microcontroller to Scroll Messages Read More »
Introduction I have been using the toner transfer method for about 9 years with great results. Occasionally I would need a board with finer traces and I would use UV method. My exposure setup allowed only a single sided board to be made and it was composed of a 30cm UV tube, some holders, a
LED UV exposure box Read More »
