PIC Projects | Embedded Lab

Category Archives: PIC Projects

Single digit Nixie clock driven by PIC16F84A

Posted on December 19, 2014 by R-B Leave a comment

This IN-18 Nixie tube clock project utilizes the PIC16F84A microcontroller and displays hours and minutes on a single tube. The circuitry is simple and the author used salvaged parts from a disposable camera to construct the high voltage power supply required for the Nixie tube. The time is displayed in the single digit by periodically flashing the digits from tens of hours to minutes. A tact switch is also implemented to set the time. It has to be pushed when the digit you want to change is being displayed. The current display is increased by one each time the switch is pressed and

TrH Meter kits are back in stock now

Posted on December 13, 2014 by R-B Leave a comment

TrH Meter is a DIY digital room thermometer plus hygrometer that displays temperature and relative humidity on 4 large (1 inch) seven segment LED displays which adjust their brightness level according to the surrounding illumination. It consists of a closed loop system that continuously assesses ambient light condition using an inexpensive light-dependent resistor (LDR) and uses that information to adjust the brightness of the display. An inexpensive DHT11 sensor is used to measure temperature and relative humidity. You can buy a complete TrH Meter kit with a preprogrammed PIC microcontroller from our Tindie store. Note: New kits come with Red

Running LED dice

Posted on November 27, 2014 by R-B 6 comments

Tons of LED dice projects with different output forms have been published online. The most common output configuration in those projects is a 3-1-3 setup (two rows of three LEDs and one LED at in the middle) of seven LEDs, which simulates the actual patterns of dots found on the six faces of a traditional dice. When it is rolled, one or more LEDs are selectively turned on to display a random number between 1 to 6. This project is about a similar LED dice but with a slightly different output form. It uses 6 LEDs which are arranged in

Alphanumeric LED display for web data

Posted on November 8, 2014 by R-B One comment

This 8-character alphanumeric LED display project connects to an USB port of PC and can display any data from your computer or from web such as weather info, RSS feeds from your favorite websites, time, and anything else that you would like to. The display has 8 push button for user interface to quickly navigate through various functionalities. A PC application developed in C# is used to configure the display. The display uses the PIC18F4550 microcontroller and its firmware is developed using MPLAB IDE using C18 compiler. Visit the author’s page for schematics, software, and other details.

Digital blood pressure meter design using PIC microcontroller

Posted on October 20, 2014 by R-B Leave a comment

This Application Note from Microchip provides a reference design for building a non-invasive blood pressure meter using the PIC24FJ128GC010 microcontroller and MCP6N11 instrumentation amplifier. A digital blood pressure meter measures systolic and diastolic pressures by oscillometric detection. Microchip’s digital blood pressure meter demo can measure blood pressure and pulse rate during inflation. The Measurement While Inflating (MWI) principle reduces overall measuring time, which in turn reduces discomfort caused by the pressure in the cuff.

« Older Entries Recent Entries »