Category Archive: Electronics Projects

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8051 Sample Application and 8051 Development Board

| 2008/08/28

The 8051 development board provides an easy-to-use and low-cost way to develop your 8051 based microcontroller projects, without purchasing any other special equipment, such as IC programmers or emulators. All required software is available as a free download, including a C compiler Features Standard 87C52 CPU clocked at 22.1184 MHz 50 I/O lines!! All I/O…

30W Class AB Mosfet Amplifier Circuit

| 2008/08/27

A volume setting passive integrated possible by the high output level of modern sources, and a structure of the amplifier gain sufficient floors limited to essential guarantee the transparency of the system. Yield loudspeakers and damping for ‘pregnant will be the selection criteria. A Release to push-pull “common drain”: his first schemes have 20dB of…

3A 5V Switching Regulator

| 2008/08/26

The regulator circuit with mosfet has a simple structure and can provide 5v 3 amps at the output with 24v input voltage. The author warned that the input voltage should not be below 11v. Switching regulator with 5V 3A mosfet Super simple regulator works very well but is it possible to improve it? Maybe with…

Walking Led Light 555

| 2008/08/26

Our circuit was considered little different from the usual circuit. Different from the usual operation of the CD4017 circuit. Hopefully of interest to you. They remain in one direction lights are burning and burn progressing. Lighting sequence starts from LD1. Ie, starting from the beginning after burning LD16 LD1 goes out. P1 potentiometer to set…

555 Stepper Motor Driver Circuit

| 2008/08/25

Circuit made ​​a long time ago and has been tested. There were a problem in the operation and construction. We must do BDX53 your engine is larger output transistors. 5 and 6 pin motors can be run with the circuit. Four-ended output transistor to run the engine to be increased. So four BC327 should be…

Remote Controlled Toy Car Project PIC16F877 PIC16F628

| 2008/08/24

software CCS used N channel FETs with a 60 amp motor drive circuit and used for different applications control circuit PIC16F877 24c08 eeprom and ICL7660 used CCS EEPROM communication with examples of how you can also control circuit MC33063AP made ​​with dcdc converter circuit and 5 .12 v input 12 … 19v output 12 ……

8051 PS2 Keyboard with LCD Writing Text

| 2008/08/23

An application that performs text printing to the LCD via a microcontroller from a keyboard using the PS/2 protocol. The purpose here is to print text from the keyboard to the Text LCD via the microcontroller. Thanks to the microcontroller inside the keyboard, a code is generated for each key pressed. This code, which is…

Analog to Digital Output Audio Sensor LM386 LM393

| 2008/08/23

You can set the outputs as analog or digital with JP1. There is a schematic prepared with splan and a pcb file prepared with sprint layout. An experimental binary sound sensor module based on an LM386 audio amplifier and an LM393 binary comparator. The sound sensor circuit is quite simple and the elements are included…

USB UART Circuit FT232RL PCB

| 2008/08/23

There is a pcb file prepared with the schema sprint layout prepared with Splan. You can download the driver file for your operating system from the ftdichip site. USB to UART converter module FT232RL Due to the fact that many modern computers do not have a COM port output (almost all modern laptops), the problem…

Stick Mixer Circuit

| 2008/08/22

This device is a mixer that converts the stereo output of the Chapman Stick to mono. The bar has one stereo output, so you must use a dual-input amplifier or use two amplifiers. A two-input amplifier is expensive, and having two amplifiers is a hurdle. Using this device, you can use most commercially available mono-only…