Described here is an electronic system for stopping tank overflow. It is capable of keeping the water-level between any two of the eight predetermined levels, starting from the bottom to the top of the water tank. The technique The system uses a point-level controlling technique. Eight different points are chosen along the tank’s height, from […]
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In this project, an old Bluetooth headset can be used, along with a cellphone to make a robot controller, without a microcontroller (MCU) or any programming. Communication between the robot car and the smartphone is done via Bluetooth. This is an excellent hacking project and is easy to build. Circuit and working The block diagram […]
This article talks about methods to improve EMI and EMC in medical devices. Electromagnetic compatibility (EMC) of a device means that it is compatible with its electromagnetic environment and does not emit electromagnetic waves to a level that causes Electromagnetic Interference (EMI) in other devices. An increase in emission of electromagnetic energy of a device […]
Most commercial torchlights use three AA or AAA cells connected in series, which produces 4.5V to drive white LEDs using a current-limiting resistor. These flashlights do not drive the LEDs efficiently due to lack of a current-control circuit. Presented here is a LED Torchlight circuit that drives high, bright white LEDs from a single dry […]
Stroboscope is a device used to make a cyclically moving object appear slow-moving or stationary. This is realised by illuminating the object intermittently with short pulses of light. Stroboscope is used in the study of insect flight. It can also be used for experiments with simple pendulum, studying details of rapidly moving objects and strobo-animation. […]
In an official document sent out by Ministry of Power on December 14, 2018, the government of India has outlined several key facts, figures and a plan to support the expansion of EVs in the country. Electric vehicles, also called EVs, use one or more electric or traction motors for propulsion. These may be powered […]
In this video, the presenter will show you how to set up your own decent electronics lab, what you need, and how much it’ll cost you. This will also include Electronics test equipment, soldering, surface mount, hand tools, and parts. Courtesy: EEVblog
Here is a simple joystick to control a robot to move in forward, backward, right, left, clockwise (CW) and counter-clockwise (CCW) directions using six buttons. It is cheaper than most other joysticks available in the market. The author’s prototype is shown in Fig. 1. Circuit and working Circuit diagram of the joystick for the robot […]
World’s smallest computer is here! When IBM announced in March that it had produced the world’s smallest computer, it raised a few eyebrows at University of Michigan, which is home to the previous champion of tiny computing. Now, the team at Michigan University has developed an even smaller device, measuring just 0.3mm to a side—smaller […]