digital potentiometer circuit

The clap sensor is a straightforward circuit that consists of a PC microphone, a microcontroller, and an output. The circuit design features the ATtiny84 microcontroller, chosen for familiarity with the AVR architecture and accessibility to necessary tools. The ATtiny84 is...

analog light dimmer circuit connected to microcontroller

Assistance is required to modify a light dimmer circuit connected to a PIC12C508 microcontroller. This circuit is designed for the... The light dimmer circuit utilizing the PIC12C508 microcontroller serves to control the brightness of a light source through pulse width modulation...

Simple Digital Potentiometer with DS1869

The experimenter's pot is a solid state potentiometer using Dallas semiconductor's DS1869 and National's LM78L05, two electrolytic capacitors, two small push button switches, and two optional Molex connectors. This project is very useful, especially in finding the right value of...

io page

This I2C expansion board for microcontrollers enables the connection of 8 switches or 8 LEDs using only two wires. The I2C expansion board is designed to facilitate the integration of multiple input or output devices with minimal wiring complexity. By utilizing...

Microcontroller

The gap between TTL (Transistor-Transistor Logic) devices and personal computers can be effectively bridged with modern microcontrollers. These microcontrollers not only incorporate a central processing unit (CPU) but also include program and data memory, EEPROM, input/output (I/O) ports, timers, and...

SPI Interface Big 7-Seg LED

The circuit is an easy-to-build and use general-purpose Big LED with SPI serial interfacing. It is expandable for multiple digits while utilizing only three wires to receive data from any microcontroller boards. The design incorporates a serial-in-parallel-out shift register, the...

IR On/Off Switch Using Microcontroller

The ability to turn electrical devices ON or OFF using a remote control is a well-established concept, with numerous devices effectively performing this function. To implement a remote control system for switching electrical devices, a typical schematic would include several key...

Handy Cricket Hardware Description

This document presents an overview of the hardware design of the Handy Cricket. The Handy Cricket is a compact electronic device designed for educational and recreational purposes, primarily aimed at children. The hardware design incorporates various components that work together to...

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....