EEprom programmer circuit | Next Electronics

Perfect Pitch, which is based on the 8751 microprocessor, is an affordable and straightforward instrument tuner and frequency counter that features a built-in headphone amplifier and a visual metronome. Perfect Pitch converts the audio signal from an instrument into a...

The frame memory circuit

A digital signal processing circuit that operates in conjunction with a memory system for temporarily storing image data. The DPTVT-3D/MV digital processing chip requires four KM416S102 memory units, each providing 16 MB of digital memory. The circuit structure is depicted...

Microcontroller and Motor Driver Circuit Board

Efforts were made to minimize the number of wire jumpers on this board, but space constraints arose due to the integration of the microcontroller and motor driver on a single board. The design would have been cleaner without the inclusion...

87C51 Selling Leads

This circuit utilizes an 87C57 microcontroller along with several peripherals to convert X-10 power-line carrier-code formats from a personal computer for use with an X-10 power-line interface in a home control system. Software details can be found in the reference....

IR On/Off Switch Using Microcontroller

Turning electrical devices ON or OFF using a remote control is a well-established concept, with numerous devices available that perform this function effectively. To create such a device, it is necessary to construct a receiver and a transmitter, as well...

Ponyprog for AVR & PIC16F84

All resistors are 1/4W. The circuit is powered by 9...15V DC or AC. When In Circuit Programming (ISP) connectors are used, it is possible for the programmer to be powered from the target's power source. Diodes D2 and D6 protect...

Multitasking Pins

It is entirely logical that low-cost miniature microcontrollers have fewer pins than their larger counterparts, sometimes too few. Consideration has been given to how to economize on pins by making them perform multiple functions. One approach is to exploit the...

Interface a uC to PC RS232 with MAX232A

This document outlines the standard configuration for interfacing a microcontroller, such as the 8051, with a PC using RS232 through the MAX232A. The UART or serial port was absent in the 8049 and 8749 microcontrollers, which were predecessors to the...

Microcontroller Backup Thin Film Batteries

Cymbet Corporation provides rechargeable solid-state batteries designed for advanced microcontroller power backup applications. The company is recognized as a leader in thin-film energy storage technology. Cymbet Corporation's rechargeable solid-state batteries are engineered to deliver reliable power solutions for microcontrollers, which are...