Everything about boards, shields, breakouts, etc.
The featured image of this blog post is based on a picture by Gerd Altmann from Pixabay.
When you want to connect a sensor or actuator to the Internet and there is no WLAN around, then the next best option is LPWAN (Low-Power Wide Area Network). In this blog post, I will describe how to connect a sensor to a website using the AVR-IoT Cellular Mini board by Microchip.
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The featured image of this blog post is based on vector graphics by captainvector at 123RF.
What keeps people from using a debugger? Well, it is mostly that one has initial costs in terms of setting up the debugging environment and of learning how to use the debugging tool. Hopefully, the next iteration of my hardware debugging tool dw-link, which is able to debug classic ATtinys and ATmegaX8s, will somewhat ease that burden, in particular, because you can buy the accompanying hardware now at Tindie.
The featured image of this blog post is by Chen from Pixabay
What is a real-time clock? Why do you need one? What are the use cases? How accurate can a real-time clock be? Which features can a real-time clock have? Which models are around? And which one should you buy?
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How do you communicate with your 3D printer? Carrying an SD card between your computer and the printer? This can end now using the SD-WIFI module! If you try to get it running on a Mac, some extra effort may be necessary.
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The featured image of this post is based on a picture by Florian-if published on Wikipedia under CC-BY-SA-3.0
Is it possible to build a hardware debugger for debugWIRE for less than €10? As it turns out, it is. You just have to make a few compromises and also do a bit of soldering and gluing.
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dw-link can turn your Arduino board into a hardware debugger, and dw-probe connects it to any target board.
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As mentioned in an earlier blog post this year, hardware debuggers are the premier class of embedded debugging tools. However, until today, there were only very few relatively expensive tools around supporting the debugWIRE interface that is used by the classic ATtinys and a few ATmega MCUs.
The good news is that now you can turn an Arduino UNO, Nano, or Pro Mini into a debugWIRE hardware debugger that communicates with avr-gdb, the AVR version of the GNU project debugger.
The Arduino Pro Mini is a very minimalistic Arduino board with a small footprint. For this reason, it is an ideal candidate for being used as the target board in a battery-operated system. In this blog post I’ll show you how to minimize power consumption and how to burn a new bootloader that saves flash memory, allows debugging, and fixes an annoying WDT bug.
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