DHT11 and DHT22 are sensors manufactured by Aosong, with a digital output for measurements. Here, it’s shown how to use it on Arduino.
Snail robot moves by mucus
A snail robot that produces mucus to move, can be used in research for robots that move in mucous cavities.
Darlington and Sziklai pairs
The Darlington and Sziklai pairs are settings with BJT transistors. The comparison between both and some circuits are shown in this post.
The DVD that can store 1 million movies
A new material and new recording methods, allow a disk with a DVD size to store a huge quantity of memory.
Digital voltmeter ammeter: how to use it?
In this post, are shown how it works and how to use the digital voltmeter ammeter. The component I bought is the DE-2645-02.
Ion engine: how does it work?
The ion engine, used for decades, is the most efficient way to boost a spacecraft for space exploration.
Visit to Miraikan
The Miraikan is a science museum in Tokyo, which shows emerging technologies and current science frontiers.
IR vehicle with Arduino
The IR vehicle is a simple project, a car with Arduino, that receives an infrared signal from a remote control to control 2 servomotors.
Electrical e-Library on Gundam Factory
I was in Yokohama, Japan, and I visited the Gundam Factory, where there’s a full-size Gundam, with 18 meters (59 ft) and 25 tons (55115 lb).
The launch of Einstein mission
China launched the Einstein probe to study X-ray emissions from neutron stars, black holes, and other phenomena.