Breadboard header for ATTiny 25/45/85
https://www.electronics-lab.com/project/breadboard-header-for-attiny-254585/
This handy breadboard header for ATTiny 25/45/85 microcontroller is a new design based on the original idea from Tinkerlog. Maybe the most useful feature is that it can provide power to the vertical breadboard strips while connecting all six port pins to the horizontal strips. Other features are : 6-pin ISP connector (works […]
89Sxx Development Board
https://www.electronics-lab.com/project/89sxx-development-board/
Single side development board with In System Programmable Flash based microcontroller, 89Sxx series. Introduction There are some 89Sxx development board, here is another one. I have designed this single side development board to be used as a tool for learning MCS-51 Microcontrollers, and for easy microcontroller project development. The 89Sxx development board features : 89Sxx […]
MCU controlled Bluetooth automation with infrared sensor
https://www.electronics-lab.com/project/mcu-controlled-bluetooth-automation-with-infrared-sensor/
The microcontroller used is 0822 zilog encore! 8k series (soic,28pin) as shown on the figure. Is a programmable microcontroller, the functions used are the GPIO and the UART of the chip. GPIO is used on led indicators, and the UART is used for giving and reading AT COMMANDS to control the Bluetooth device. The whole […]
Digital Volt and Amp Meter with Temperature Control
https://www.electronics-lab.com/project/digital-volt-and-amp-meter-with-temperature-control/
Introduction This project was designed and constructed as enhancement to the 0-30V Stabilized Power Supply Project with the DIY electronics hobbyist in mind. The circuit uses a single PIC Microchip to perform the Voltage, Current and Temperature conversions and display functions. The PCB Board uses large tracks and can easily be made using the “press-n-peel” […]
AquaCont – Aquarium Control
https://www.electronics-lab.com/project/aquacont-aquarium-control/
The experimental circuit The AquaCont is an electronic system witch permits to manage and to monitor most of the parameters of all the electrics devices that can be found in a aquarium. The PIC18F4520 used to realize it, combines a real time clock and a temperature sensor in order to control 8 relays. The system […]
EPROM adapter for ATMEL 89 Series Flash Microcontroller
https://www.electronics-lab.com/project/eprom-adapter-for-atmel-89-series-flash-microcontroller/
Devices The EEprom programmer software supports the following devices. 28C16 28C256 28C17 29C256 28C64 Hardware Diode D1 and resistor R1 provide the VDD isolation when programming the 24 pin devices. The jumper J3 must be shorted for 24 pin devices, and open circuit for 28 pin device programming. Following EEPROMs are pin compatible with their […]
ATMEL 89 Series Flash Microcontroller
https://www.electronics-lab.com/project/atmel-89-series-flash-microcontroller/
Programmer Ver 2.0 The original and true author of this programmer is M Asim Khan. asimkhan@sat.net.pk Original plans can be found at: http://chaokhun.kmitl.ac.th/~kswichit/Pgm89v2/Pgm89_2v0.html The required software for this programmer is located at: http://chaokhun.kmitl.ac.th/~kswichit/Pgm89v2/Pgm89w.zip With an optional adapter at J1 and a different software it is possible to program some parallel EPROMs like the 28C16, 28C17, […]
Ponyprog Circuit for ATMEL’S AVR
https://www.electronics-lab.com/project/ponyprog-circuit-for-atmels-avr/
The ATMEL AVR programmer works with the Windows program “Ponyprog” which works under 95, 98, XP, … and can be found athttp://www.lancos.com/prog.html On board the AVRs that can be programmed are those in the schematic. For other members of AVR family or the rest programmable ICs that Ponyprog can program, there is the J1 connector […]
PlayPIC
https://www.electronics-lab.com/project/playpic/
A Tutorial Board for the PIC16F84A Microcontroller. This is a new design of a tutorial board based on the popular PIC16F84A microcontroller. It features eight single leds, a 7-segment display, an LCD display and five push buttons. It is an ideal solution for the beginner to take his/her first programming steps in the world […]
Ponyprog Circuit for AVR & PIC16F84
https://www.electronics-lab.com/project/ponyprog-circuit-for-avr-pic16f84/
Schematic Comments All resistors are 1/4W.The circuit is powered by 9…15V DC or AC. When In Circuit Programming (ISP) connectors are used, is possible the programmer to be powered from targets power source. Diodes D2 and D6 protect the regulator LM7805, when targets power is used. ‘ XTAL JUMP ‘ is used to cut […]