GSM Playground PCB Diagram
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Microcontroller Voltmeter / Ammeter with LCD
The rectifier bridge voltage is determined by the U2 element; refer to its datasheet for the maximum voltage specifications. The minimum voltage at this pin should not fall below approximately 9V, or 6.5V if low-dropout type U2 and U3 voltage...
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...
Electronic Mini Projects
The Wireless Imaging Intruder Alarm application allows home security smartphones to detect and send pictures of burglars directly to personal cell phones, PDAs, or computers within seconds of a break-in at homes or businesses when the owner is away. Code...
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...
Latest Wireless Car Alarm circuit diagram and explanation
This circuit is a wireless car alarm system composed of two modules: a transmitter and a receiver. It operates using FM radio waves and is compatible with vehicles that have a 6-12V DC power supply. If the vehicle's power supply...
Wireless Bug detector
This fairly simple circuit makes it possible to place such a wall as a conduit to locate. It is a conduit for power, no water or gas-seeker. The only requirement is that there is tension on the line. The antenna...
Interactive Voice Response System
Nowadays every institution needs automation. As a part of college automation, a project has been developed for a Voice Interactive System for College Automation. This project allows users to quickly access student attendance and marks through the telephone line without...
Schematic Diagram Anti Theft Car wireless alarm
This is an anti-theft alarm with wireless connectivity, referred to as the Anti-Theft Car Wireless Alarm. The FM radio-controlled anti-theft alarm can be utilized with any vehicle that operates on a 6 to 12-volt DC supply system. The mini VHF...
Automatic Switch Project 2
The switch control system utilizes sensors to inform the microcontroller of the trains' positions on the layout. This ensures that only one train occupies the main line at any given time and that switches are correctly set for the train's...