Digital Thermometer-Cum-Controller
This standalone digital thermometer controls the temperature of a device according to its requirement. It also displays the temperature on four 7-segment displays in...
Microcontroller-Based School Timer
The basic requirements of a realtime programmable timer generally used in schools and colleges for sounding the bell on time are:
• Precise time base...
Remotely Programmable RTC Interfaced Microcontroller for Multiple Device Control
This project based on Atmel AT89C52 and Dallas real-time-clock (RTC) chip DS12887 can be used to control and remotely program the switching operation of...
DC Motor Control Using PWM
Small DC motors are efficiently controlled using pulse-width modulation (PWM) method. The circuit described here is built around an LM324 low-power quad-operational amplifier. Of...
SAFE CIGARETTE LIGHTER POWER SOCKET
Cigarette lighter sockets available on the dashboards of some vehicles act as a heat source to light cigarettes. Besides, these can power electronic gadgets...
“In the x86 space, Intel Atom has opened a new market...
Headquartered in Germany, Kontron is a leading embedded computing technology provider. With more than 30 per cent of its employees in R&D, Kontron creates...
T&M Trends For RF Designers
The article looks at the emerging trends and applications in the RF design space which are driving the development of cutting-edge test and measurement...
Versatile Battery Charger
This transformer-based versatile battery charger circuit can be used to charge any battery, provided the transformer rating is higher than the battery rating. Normally,...
Electronic Glow-Worm
Here is a circuit that simulates the chirping and glow of a glow-worm bug. The circuit is built around timer IC 7555 (IC1), which...
Air Ioniser
This air ioniser is built around an NE555 timer IC which is configured in astable mode.
The circuit is powered by a 12V battery, which...
