There are times, when you have purchased your brand new Single Board Computer like a Raspberry Pi for a headless project and then you realize – you don’t have any monitor laying around for the initial computer setup. But if you have a laptop next to your lap – there might be a solution for … Read more
An angle grinder is a useful and universal tool which can be used to cut lots of different materials – wood, metal, concrete etc. In this blog post you will find how to use it for cutting concrete walls using a 3D printed DIY addon for a vacuum cleaner. Intro Although the one of the … Read more
If you are interested in DIY electronics, at one point in life you might encounter an Atmel MCU with an UPDI programming interface. The original programmer costs quite a lot, so most obvious solution would be to make one by yourself. So, in this post you will find out what parts and software you will … Read more
This is going to be a list of tools and equipment which I personally use when developing some DIY electronics. This list can be used as a reference list what you might need as a starting point. Also, you might find some parts as a great gift ideas for a DIY electronics tinkerer. Table of … Read more
Lots of LED strip control circuits use Pulse Width Modulation (PWM) to control light brightness. Although it is quite simple method, it creates (sometimes) unwanted phenomenon called flicker. While usually unnoticed by a human eye, flicker can still cause some discomfort to the individual. To reduce LED flicker, a high PWM frequency or analog control … Read more
Finally, it happened – the generator is (kind of) finished. It took a bit of time after the previous post to bring the device to its final state. Quite a lot was done from the last time – mostly it was firmware’s finishing touches. I had to make sure that everything, especially LCD interface, works … Read more
Yet another step towards finishing the DIY generator. As the previous one, this post is also going to be quite short, because there is not much to write about. Electronics devices usually have some kind of enclosure, so no exception is my generator. As it is portable device, the housing needs to be as small … 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
Today’s post is going to be about two little things. The first one – AD9833 Arduino library which is used to set IC’s output parameters. The second one – I have found out some interesting things about +- 12V converter’s output noise and a way to reduce it. Links to project’s all posts VCA822 Gain … Read more
