PIC PAL video OSD superimposer circuit

This simple circuit can be used to program the PIC16F84 and similar flash memory type parts. It uses a cheap 555 timer IC to generate the programming voltage. The circuit utilizes a 555 timer IC configured in astable mode to produce...

microcontroller driving 4x7 segment display pic 2

A circuit is being designed to drive a 4x7 segment display using a PIC microcontroller. The previous implementation utilized four pins to control each of the four digits individually, with a sequential activation method. The designer aims to simplify the...

JDM pic programmer help required

For the following circuit of the JDM PIC microcontroller programmer, information is needed regarding the PIC microcontroller pins that receive the RS232 signals. The JDM PIC microcontroller programmer is a widely used circuit for programming PIC microcontrollers via the RS232 interface....

Hum Circuit

The kit employs an off-the-shelf microcontroller based on the AtMega328P-PU Arduino, along with a simplified version designed for ease of replication and modification by collaborators and students. This initiative aims to enable the fabrication of simplified microcontrollers for DIY synthetic...

Robot Motor Control Schematic

The schematic for controlling the motors is divided into three main sections, each serving a distinct function. The primary components featured in the schematic include the PIC 18F252 microcontroller, the SN754410 motor driver, and 2N2222 transistors. At the top of...

Electronic TIC TAC TOE

This project is not to introduce Tic Tac Toe. Everyone knows this game. It is to introduce two features: bi-coloured LEDs, microcontrollers, and the skill of writing an ALGORITHM. You can use the project to learn the skills of creating...

POWER LINE MODEM FOR COMPUTER CONTROL

This circuit employs 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. The circuit...

40 Pin PIC Development Board

For applications requiring numerous Analog to Digital channels or substantial program memory (up to 32K), this prototype board is ideal. It is designed for 40-pin PIC microcontrollers and includes a power supply circuit, a 20MHz crystal oscillator circuit, an RS232...

Digital Calender Circuit

This is a digital calendar circuit that utilizes a microcontroller to display the date, day, and month on an LED display. The entire system is managed by an 8-bit microcontroller, which operates based on a program embedded in its ROM....