Circuits - Electronic Blog for hobbyist

This embedded MP3 module is an universal and compact circuit (37 mm x 27 mm) for playing MP3 audio files. The MP3 module can be used in embedded systems.
The MP3 files (up 65,536) are stored in a micro SDcard.This embedded MP3 module is an universal and compact circuit (37 mm x 27 mm) for playing MP3 audio files. The MP3 module can be used in embedded systems.

The MP3 files (up 65,536) are stored in a micro SDcard. ... Read more »

Category: Audio | Views: 3065

AD9833-based USB Function Generator

One tool that I've been missing at my lab at home is function generator. They tend to be a bit expensive, so I haven't bought one. I thought this might be a good opportunity to try and make one myself. I found a pretty common DDS (direct digital synthesis) chip, called AD9833. Then just strap a USB-enabled AVR micro there and maybe some analog electronics. ... Read more »

Category: Tests and Measurement | Views: 6080

PICLab-40 PIC Microcontroller experiment board

This is a two-in-one PIC programmer and Experiment board for 40 pin PIC Micro devices.It easy to developt your program without insert/remove PIC micro.You just programming your code and then download to this board without any programmer .This board interface with parallel port.This board supports for PIC16F,PIC18F 40 pin devices . ... Read more »

Category: Microcontroller | Views: 5803

3 digits Digital volt meter

This is simple 3-digits digital volt meter. PIC16F676 used to read analog signal(voltage) and display the value on 3-digits 7-segment. You can apply to mesasure DC currant with parallel R-shunt but I'm not descript here. ... Read more »

Category: Tests and Measurement | Views: 7067

Precision +/- 15V regulator for pre-amp or headphone amplifier

This is a precision ±15V regulator on a single side PCB. ... Read more »

Category: Power | Views: 5961

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