16x8 LED Matrix Clock and Thermometer

http://www.waitingforfriday.com/index.php/16x8_LED_Matrix_Display

This project was to build a desktop clock and thermometer for my office. It is based around a PIC18F2550 with a Dallas DS1302 real-time clock. The thermometer is a LM35 chip. The display is driven using an A6276 16-bit LED driver for the rows and a SN74HC164E controlling the columns (via BC337 transistors to allow the display to be bright). The display is made up of 128 high intensity red LEDs.

The display is a lot brighter than it appears in the video; I had to angle the camera to one side to avoid the glare ruining the picture.

Category:

Science & Technology

Tags:

• LED
• Matrix
• PIC18F
• PIC
• Clock
• thermometer

[valdirdf]

Alguem consegue o A6276?

[simoninns]

@oM4rE7 - You can replace the RJ11 with a 6 pin header to make it easier to connect the PicKit2. The display is not connected to a PC other than via the programmer.

[oM4rE7]

@simoninns tnx! Is the ICSP header is also the RJ11? and what is the socket needed to conncet the board to the PC.. tnx for your help.. :)

[simoninns]

@oM4rE7 - Yes, the ICD3 is just a more 'functional' version of the pickit2 and 3, but only for debugging; otherwise they are the same.

[oM4rE7]

@simoninns can we use a pickit2 instead of mplab icd3?

[simoninns]

@oM4rE7 - You are welcome to use the forum on my website for help. Just follow the project link under the video!

[oM4rE7]

@simoninns tnx.. we are looking for that IC and its hard to find.. tnx :).. if we have questions about this project.. I will ask for a help if its fine.. :))

[simoninns]

@oM4rE7 - it's a DS1302, the other is a typo :)

[oM4rE7]

SIr, You said here to use DS1302 IC but in circuits diagram it said to use DS1320.. What sould we use? We are just beginners doing this.. Tnx a lot

[simoninns]

@sanosukke - I use a UV transfer method. The circuit is printed onto transparent plastic sheet and then I use a UV lightbox to get the image onto the PCB.