IT & Business

Connection of Thermocouple (K-Type) to ESP8266/ESP32/Arduino

Several types of converters are available on Aliexpress to connect thermocouples. Thermocouples allow measuring very low and very high temperatures. The inexpensive module MAX6675 send the data taken from the thermocouple via the SPI bus. It has 12-bit ADC on … Continue reading

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Current Converter 4.. 20 mA in voltage XY-ITOV

Industrial sensors reporting the change of the measured parameter by the current change in the range of 4.. 20 Ma, widely distributed. They are highly noise-resistant, so a cable of several hundred meters can be used for this sensor. The … Continue reading

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Creating a Fritzing Parts for Dummies:-)

The Internet has many articles on how to create new Fritzing parts. But, unfortunately, it is often a lot of text and is overlooked nekoorye the key points of creating an SVG file. I'll Write the version of manufacturing fritzing … Continue reading

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How to withdraw cash in RUB from a foreign bank without a commission

A lot of foreigners visit Russia. E.g., some of my friends from abroad had visited me and had lived in Russia for several months to study at university. Most cities in Russia are quite comfortable to live only using with … Continue reading

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Review of the 2nd generation robot Vacuum cleaner Xiaomi Roborock S50. Almost a year in work.

In The Internet is easy to find reviews robot-Vacuum cleaner Xiaomi Roborock S50. I'll Write briefly on the work after almost a year after the acquisition. I will not Compare TTTH with the previous generation. And in general TTH-a thing … Continue reading

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Inexpensive RS485 module with ESP32 (hardware serial)

In the previous article, I reviewed how to connect very cheap RS485 module to the ESP8266. Generally speaking, it’s MAX485 chip without any protection against troubles like lightning and cost about 0,3 $ It’s better to purchase wholesale by 5 … Continue reading

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Comparison of the hidden wiring detector Bosch GMS 100 and MD120

Hidden wiring Detector is an irreplaceable thing during repair. Of Course, you can save on this tool, but often such savings are spent hours of time to recover damaged wiring. In The article I compare the quality of the voltage … Continue reading

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