You might want to connect an encoder to your Arduino board when you want to have a physical control over you electronics. The encoder might also be a great alternative to physical pushbuttons as a rotating knob might be a more intuitive solution for some applications. Table of contents Encoder Used hardware in this example … Read more
There are times when you need to measure temperature with your Arduino board. There are lots of different temperature sensors, most of them reads out data via digital interface. In this post I am going to talk about a simple analog temperature sensor LM35, which reads out temperature as a voltage value. Table of contents … Read more
This blog post is going to be a really short tutorial for those who want to start using PlatformIO IDE with any Arduino board. Table of contents Your usual Arduino use case About PlatformIO Simple PlatformIO example with Arduino Nano Used software and hardware in this example Download and install PlatformIO Create a new project … Read more
This time let us talk about one Sigma DSP (ADAU1401) function – volume control, realized in various ways. From previous part about DSP programming we already know that it is possible to control DSP’s output volume directly from the Sigma Studio’s graphical interface. Of course, this is not a convenient solution, because you will need … Read more
This post is going to be a tutorial – how to use LVGL (Light and Versatile Graphics Library) with an ESP-32 microprocessor running Arduino framework. So, I have decided to write about it, because when I tried to learn more about it myself, there wasn’t a lot of information, tutorials and/or examples using the library … Read more
This post is going to be about a graphical user interface for DIY generator’s display I have talked about earlier. Also, this post will be a short one. Two libraries were used to display the interface. The first one is TFT_eSPI. Although it has its own screen drawing/writing functions, its main purpose is to be … Read more
This post is going to be a short one about my Arduino battery charger (based on BQ24295 IC) library. As it was written earlier, the portable DIY generator has a battery charging circuit. Its main component – BQ24295 IC is not a simple Li-Ion/Li-Po charger. Its working parameters or status readings can be transferred through … Read more
Finally, a bit of a progress with the generator. This post will be about some experiences with the LCD, eSPI library and touch. Links to project’s all posts VCA822 Gain Amplifier Circuit LM7171 Offset Circuit Gain and Offset Control Filter Circuit Dual 5V Power Supply Dual 12V TPS65131 Power Supply Battery Charging Circuit with BQ24295 … Read more
