Reading time: 2 minute The electronic circuit shown can be used in households and facilitates the on / off switching of the light bulb in the room, for example, using the remote control of the TV, DVD or any device controlled by an infrared remote control.
Reading time: 2 minute The electronic DIY kit presented is a simple and cheap bathroom lighting machine. The light turns on automatically when the bathroom door is open and stays on when it is open again, the lamp / LED going out after a short delay.
Reading time: 6 minute Among the main topics presented in this issue, we list: Indicator - universal controller for liquid level; Remote control receiver for switching electrical and household appliances; Motion control in both directions at a DC minimotor; Temperature measurement and recording on PC - using the iButton DS1820; Volumetric sensor (or broken glass detector); 2 x 3W stereo audio amplifier; Voltage stabilizer 1.25… 20V / 4A.
Reading time: 5 minute Among the main topics presented in this issue, we list: Measuring the electrical resistance of solders made with alloys without Pb or conductive adhesives; Performance indicator for "burned" fuses; Active switch for supply voltages; LM385 (B) - Precision fixed voltage reference source; Charger for lead-acid batteries (sealed); Balance indicator; Automatic / manual video switch; Speed regulator for AC motors; Sensory electronic switch - Touch Switch.
Reading time: 6 minute Among the main topics presented in this issue, we list: Alternative technologies for connecting electronic components (II); Simple and economical bargraph; ICL7665 - Electric voltage monitor with dual output for under and over-voltage; Stepper motors - Structure and control; Stepper motor driver with MOSFET transistors; Simple protection for acoustic enclosures; Compact Flash / IDE interface; Automatic night lighting powered by the mains.
Reading time: 5 minute Among the main topics presented in this issue, we list: MC34064 - Undervoltage sensing circuit (power voltage monitor); Audio frequency amplifiers with TDA2822M; Universal siren module with back-up source; Dynamic lights and signaling arrow; 4-channel digital thermometer; "Flash" type light signals (beacons); Maintaining between two limits the water level in a tank;
Reading time: 4 minute Among the main topics presented in this issue, we list: Development of equipment for temperature monitoring in technological processes (VI); 300W final audio amplifier with MOSFET; Vu-meter stereo; Multifunctional audio-video monitor; Board 16 relays controlled by PC; Thermal fuses; Proximity sensor;
Reading time: 4 minute Among the main topics presented in this issue, we list: Portable GPS with LCD display; DS56 - Dual Temperature Comparator; LM75 - 2-Wire Serial Temperature eSensor and Monitor; Precision thermometer and thermostat with LM135; Transformer tester; Warning relay for cars.
Reading time: 2 minute The presented project turns on 5 LED blocks in turn. Each control block contains a maximum of 20 LEDs. The LM555 integrated circuit acts as an oscillator and the CD4017 as a decoder.
Reading time: 2 minute Also called "Knight Rider", the presented circuit lights 4 LEDs in turn. The operation of the project is based on two ICs: LM555 and CD4017. The LM555 integrated circuit acts as an oscillator and the CD4017 as a decoder.