PIC 433Mhz Transmitter

How it worksVideoSchematicsPartsFiles Here we have a microcontroller (PIC12F675) driven 433Mhz AM/ASK RF transmitter with “low” battery status indicator. The PIC microcontroller feeds/drives the RF transmitter with a Serial output signal which is then modulated (AM/ASK) and broadcast into the air. A matching 4333Mhz receiver module (another project coming soon) can then be used to…

Digital Thermometer

Digital Thermometer How it worksVideoSchematicsPartsFiles This is a rather cool electronic project that anyone can build with only a handful of components. It uses a temperature sensor and a PIC microcontroller to read and display temperature (switchable between Celsius and Fahrenheit) on a 4 digit 7 segment display.   Empty tab. Edit page to add…

LED Scanner “Knight Rider”

How it worksVideoSchematicsParts Here is yet another modification to the “LED Flasher” project. This circuit has six LEDs, configured in a row, that glow sequentially back and forth very much like the lights on the computerised car in the “Knight Rider” TV series. The frequency (how fast the LEDs switch on and off) can easily…

LED Chaser

How it worksVideoSchematicsParts Here is a slight upgrade to the “LED Flasher” project. This circuit has ten LEDs that turn on and off in a sequential order. They thus create an effect and appear to “chase” each other. The frequency (how fast the LEDs switch on and off) can easily be controlled by the variable…

LED Flasher

How it worksVideoSchematicsParts Here we have a really simple and easy to build project for the beginner. It flashes two Light Emitting Diodes (LEDs), a red and a blue one, much like the lights on a police car. The frequency (how fast the LEDs switch on and off) can easily be controlled by the variable…

Temperature Control System

How it worksVideoSchematicsPartsFiles This is a temperature sensor control system that aims to recreate a household central air conditioning (heating/cooling) system. The circuit operates by the user switching between three modes (Ambient, Set and Run) of operation via a push button and adjusting the temperature settings via a variable resistor (potentniometer). Ambient = Ambient Temperature…