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Hakko 191 soldering iron meter

I got this “Hakko 191″ soldering iron temperature meter from Banggood some years ago. It is not available there but you could find similar devices from eBay etc.. According to Hakko official pages the model 191 TIP THERMOMETER has been discontinued maybe years ago. This is most probably some Chinese clone of the device because

First sustainable Lego pieces to go on sale | Life and style | The Guardian The first Lego pieces made from plant-based plastic sourced go on sale this year, the company has announced. Production has begun on a range of Lego botanical elements or pieces such as leaves, bushes and trees, made entirely from polyethylene (made with ethanol extracted from sugar cane material). They will start appearing in Lego

Rating the big smartphone makers at MWC 2018 | TechCrunch This article gives good overview of smart phone maker announcements made by biggest manufacturers. Based of this it seems that the years of big mobile innovations are over. Many years of business growth has slowed as people keep using their phones for longer time. And the announcements don’t seem to be able to change

In praise of the common-base: Bench quickie | EDN–Bench-quickie The common-base configuration is so little used, it doesn’t even register on many engineers’ radar. It is hard tp really learn and internalize a circuit until I have a need for it, and have done at least some small hands-on activity with it. This article describes how to test this type of circuit.

Mobile World Congress 2018: You Can’t Teach an AI to Run a Telecom Network—Yet – IEEE Spectrum AI, which telecos have already leveraged in some situations, might be able to help solve some of communications service providers’ (CSPs) problems. But CSPs have been slow to adopt artificial intelligence, because the initial problems AI was developed to address didn’t really affect them. “There’s a lot of opportunity to use AI in the

5G is in Danger of Being Oversold – IEEE Spectrum It seems that 5G has become a technology savior. Proponents tout the poorly defined wireless technology as the path to virtual reality, telemedicine, and self-⁠driving cars. But 5G is a buzzword unleashed by marketing departments. In reality, 5G is a term that telecommunications investors and executives sling around. Millimeter-wave spectrum is freely available for

Metal detector kit converted to Arduino sensor

I got a cheap DIY Metal Measure Kit Electronic DIY Soldering Exercise Board with the following specifications: Model: MDS-60 Working voltage: DC3-5V Standby current: ≤ 5mA Working current: ≤40mA Measure depth: ≤ 60 mm Measure alarm mode: sound, light PCB size: 86 x 61mm There was a just the circuit board and some components on

Getting started with SQL | Building a relational database using SQL is easier than you think. You don’t need to be an experienced programmer to use SQL to create a database. This article explains how to create a simple relational database management system (RDMS) using MySQL 5.6.