Articles

Berry is a lightweight scripting language designed for embedded system. It features dynamically typed, one-pass compiler and interpreter with core’s code size is less than 40KiB which can run on less than 4KiB heap. Thanks to latest OBK integration, Berry can now run on most of new... [Read more]

. Today I am going to check the condition of a small electronic gadget flooded. The flood took place on 15 September and I extracted the equipment from the silt on 27 September, about two weeks later. The water carried so much sand and soil that I had to play archaeologist, and the... [Read more]

Hello everyone! I come to you with a project that dragged on for me for almost 4 years - a tube amplifier, which was my school of tube electronics. During this time I made a lot of mistakes, learned a lot and today I can say with a clear conscience that "I already know something".... [Read more]

. I would like to present an application that is a collection of test tools using CH341 as a physical interface. The original purpose of this application was to repair laptop batteries. However, I had to familiarise myself with the CH341 chip beforehand, I started with more elementary... [Read more]

. Here's a look at the inside of a mid-range metal detector. The Garrett Ace 250 is generally available to buy for around PLN1,250, although I sometimes see used pieces being sold much cheaper. The detector itself is quite capable, as it offers graphical imaging of the conductive... [Read more]

. Here I will present a self-assembly kit based on SMD, or surface mount, components. This simple kit allows you to practice soldering circuits in enclosures such as SOP-8, SOP-16 and 0805. Once assembled, you get a simple "flowing light" effect. The whole thing can be bought for... [Read more]

Here I will demonstrate how the internal flash of the Xradiotech/Allwinner XR806 (and XR809 - see note at bottom) can be read to file in Windows. Although there is not yet an OpenXR806 cloud-free alternative firmware to use on devices that have the XR806 at heart, flash firmware backups... [Read more]

. The LZWSM16-1 is a single Zigbee-controlled 'relay' module measuring 39x39x20mm, it works with a classic switch and does not require a neutral wire to operate, so it will probably find its place in many a box. The whole thing normally works with the manufacturer's gateway, but it... [Read more]

. How to create a simple automation in Home Assistant ? How to trigger an event with a door sensor? How to automatically turn on a light? Here I will try to show you - step by step. The topic assumes that we already have a Home Assistant set up with a paired door sensor and relay.... [Read more]

We will soon be reporting extensively on the testing of the F&Home smart building system by F&F Filipowski. We have familiarised ourselves with the new release of the system, which is based on new software and the new FOX mobile app. We will present you with our findings from... [Read more]

. The Remote Control Transceiver (RMT) on the ESP32 is a special hardware module that allows precise generation and reception of timing signals such as IR and RF control. Here I will show how to run it and use it to operate the WS2812B diodes, which are known to need a fairly precise... [Read more]

I've created a moving average modification for OpenBeken (BL0942+BL0937) for power and current values. Thanks to this, you can smooth the fluctuating power and current values, ​​so that they are more informative at first glance. So, if you have energy measuring devices like these... [Read more]

. Most leds with a GU10 mount are quite difficult to convert - access to the WiFi module is difficult and you usually have to take the whole housing apart to change the firmware. However, I recently found a model where this procedure is much simpler. There, the WiFi module is located... [Read more]

. Here is a short tutorial showing how to run a 2.5" 240x240 ST7789 display with an ESP8266. I will present here two separate ways, the first will be based on a library from Adafruit and the second will come down to running the TFT without external libraries. In this way, I am preparing... [Read more]

. Here are the firmware change instructions for another budget WiFi controlled relay. The product presented here normally works with the Tuya cloud, but here I will show how it can be freed from the cloud and paired with Home Assistant. The unit discussed here appears under the ATLO-B1-Tuya... [Read more]

. Gemma 3 is the latest in a series of open multimodal LLMs from Google, based on the same technology as Gemini 2.0. Chatbots based on Gemma 3 not only operate with text, but can also describe images. This is where I will try to test this in terms of images relating to electronics.... [Read more]

. Before publishing, I wondered if anyone else was interested in this topic. But maybe there is still a maniac for flashing lights :) . Illuminophony - a somewhat forgotten topic. The device has, in my opinion, undergone a backward evouluation and at the outset let me quote my colleague... [Read more]

Brand Goodram Industrial showcased its offering at the Embedded World 2025 , held in Nuremberg. The stand attracted a lot of interest with its comprehensive presentation of storage solutions and DRAM modules, dedicated to the industrial sector, the defence industry and the enterprise... [Read more]

Are you trying to run latest Gemma3 multimodal AI models , but keep getting error 500 in Ollama WebUI? Here's a solution, but first few words about Gemma 3. Gemma 3 is collection of lightweight, open models built from the same research and technology that powers Gemini 2.0 models.... [Read more]

T34 a Wi-Fi and BT combo chip integrating BK7231N core along with crystal, RF matching component, and most other peripheral components within a tiny SMD case. The T34 dimensions are 6±0.1 mm (W) × 6±0.1 mm (L) × 0.85±0.1 mm (H). This reduces the size required on the board and saves... [Read more]

Good morning. I wanted to introduce my next design which is a threading arm. The base of the machine is a 400 kg magnetic lifter ordered from a well-known Chinese portal for the sum of 330 PLN. . I bolted a flat bar to the top of the magnet with a welded 30 mm shaft. I then screwed... [Read more]

Hi all! Let me share my teardown of TNCE TUYA Smart Plug WiFi I recently bought on AliExpress for 5 euros. The original Tuya firmware was pretty unstable and I decided to covert it to OpenBeken. Luckily, OpenBeken supports ECR6600 platform so it was possible to flash it via UART.... [Read more]

. How do I generate images on my own computer? How to change the content of a picture? Is AI able to suggest an interface sketch for a smart home controller? This is what I will try to find out here, all thanks to an easy-to-use web interface based on the Stable Diffusion XL architecture.... [Read more]

Test review and fix of the "MOES ZigBee Smart Sprinkler Water Timer with 1 Outlet" Technical specifications: Model: ZWW-YC Wireless Connection: Zigbee Working Water Pressure: 2.9-116 Psi Working Temperature: 40.1°F-113°F (4.5°C-45°C) Waterproof: IP55 Battery: 2x1.5V AA alkaline batteries... [Read more]

On 6 March 2025, Tarlogic published a press release entitled 'Tarlogic detects backdoor in mass-produced ESP32 chip that could infect millions of IoT devices'. This information was later picked up by the BleepingComputer website and circulated via Slashdot, Google News. In short,... [Read more]

I was written to by Eleo from HW Media Lab asking for a peek at their product called Webscreen. The Webscreen is a small AMOLED display, powered by the ESP32-S3 microcontroller, that allows users to monitor important information without being distracted from work or entertainment.... [Read more]

This topic covers detailed information about ECR6600 WiFi modules, datasheets, pinout, and firmware backup via UART and write procedure required to run ESWIN chips locally. Thanks to this, it's possible to pair ECR6600 devices with Home Assistant and use them free from the cloud.... [Read more]

. Hi, As the summer season is approaching, I have decided to build a weather station (or rather a "motherboard" for it) to control the irrigation system and also to allow a quick view of current parameters such as temperature, humidity or pressure, with the possibility of extending... [Read more]

Using Nichicon SLB batteries in IoT applications . The greatest challenges of modern electronics are efficient energy harvesting and storage. In response to such market needs, Nichicon, the Japanese leader in capacitors, has developed the small SLB series batteries: lithium-ion cells... [Read more]

. A few years ago I presented a simple way to control an individually addressable LED strip based on bit-banging , i.e. the simplest operations on the IO pins of a microcontroller. Here I will show a completely different approach, which is based on using the MOSI pin from the hardware... [Read more]