Circuit Lake

Electronic Project and Circuit Collection

PIC Related Resources

Home Phone Caller Filter and Blocker

July 16, 2012 By: admin Category: Interfacing, Miscellaneous, PIC No Comments →

BALSAMO is dsPIC-based incoming calls filter for your line phone. It can be used to ‘block’ a hidden or blacklisted number. Doragasu, project designer, implemented Caller ID protocol in the firmware due to lack of Caller ID decoder IC.

TinyProjector, Small Portable Character Projector

July 01, 2012 By: admin Category: Display, Miscellaneous, PIC No Comments →

TinyProjector is a very small portable character projector based on inexpensive laser diodes. It projects a single line of text onto nearby walls and tables from portable and wearable devices like cellphone and PocketPCs that will be connected via wireless serial connection. The current prototype uses PIC microcontroller,┬áPIC16F877, and is capable of displaying 8 characters, […]

Firmware USB for PIC16F628, 16FUSB

May 11, 2012 By: admin Category: Interfacing, Miscellaneous, PIC, Project No Comments →

The 16FUSB is a software implementation of the USB low-speed for PIC16F628/628A microcontroller. All communication stuff is done by the firmware written in ASM, completely discarding the need to use an additional chip. From the 16FUSB core is possible to add implementations of other protocols such as, for example, I2C, SPI or simple write data […]

1 GHz Frequency Counter

May 01, 2012 By: admin Category: Digital, Measurement, PIC, Project No Comments →

This simple counter is built based on PIC16F84A and SAB6456 IC. The SAB6456 is a prescaler for UHF/VHF tuners. It can be switched to divide-by-64 or divide-by-256 by the mode-control (MC) pin. The circuit has an input frequency range of 70 MHz to 1 GHz, has high input sensitivity and good harmonic suppression. This project […]