With microcontrollers, there are different logic levels. The logic level indicates the voltage the device operates with. The best known are probably 5V and 3.3V. Since in practice one often faces the problem of operating a 5V device in conjunction with a 3.3V device, I would like to take this opportunity to ... the logic level converter.
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At this point, a rather expensive sensor for around >36€, but one that beats the other distance sensors by „lengths“. I actually wanted to test the I²C version, but the UART version arrived here, which is why I'm presenting it now. (Since I couldn't find any documentation, I'm still not sure if I²C wouldn't also be possible. 🙂)
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For all those who work under Linux, Josef (see comments on ESP 32 Cam) has recommended the MPV Player. I took a quick look at it on my PI and am impressed. DOWNLOAD Downloading should be done via the Linux package manager if possible. Alternatively, the player can be downloaded from the following links: mpv.io Alternative at Chip...
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ISpy is an open-source tool that allows you to connect to multiple IP cameras and other streams simultaneously. It has a large community and many configuration aids for streams.
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VLC (Video LAN Client) isn't just good for watching videos; it's also suitable for streaming content. For example, it can be used to view images from IP cameras or to provide your own streams.
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This laser distance sensor is faster than sonar sensors such as (for example, HC-SR04, US100). It measures in the range of 30mm up to 2 metres and is controlled via the I²C bus at address 0x29. The address can be changed via software.
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This is where the foundation for operating stepper motors with microcontrollers will be laid. This article will: Describe the operating principle, name some properties and characteristic data, and provide a few tips. There are many sources online that already describe the fundamentals exhaustively. This is more of a compilation of useful information and aims to...
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Slip rings enable electrical connections to objects rotating through 360°.
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The SIM800L module enables communication via the GSM mobile phone network. In addition to SMS and the internet, voice calls are also supported, provided the speaker output and microphone input are brought out as pins. There are various modules for microcontroller tinkering. Among others, there is also an add-on for the Arduino Uno. The SIM808 and SIM900 modules are similar to the 800L and can usually be controlled with the same library.
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The TTGO T-Call 1.3 is an ESP32 module that offers GSM access using the SIM800L chip. I tested the module with a ThingsMobile SIM card. Facts: ESP32 and SIM800L chip, Micro-SIM slot, Antenna connector, Reset button, Connector for a battery, USB 3.1 Type C connector. Pinout. Areas of application: GPS Tracker (Requires GPS module), Smart…
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