Articles

Here I will show you how I reduced my IoT device pins configuration HTML page from about 90kB down to only 8kB. I will use my OpenBeken project as an example, but the generic idea shown here can easily apply to any other environment creating HTML pages from C (or similiar) code. This... [Read more]

I invite you to analyse a current/voltage/power meter working normally with the Tuya ecosystem. Here I'll test it with the manufacturer's app, analyze its MCU communication protocol with the WiFi module, and then try to change it's batch to OpenBeken, which I'll configure accordingly... [Read more]

OpenBeken provides a scriptable set of MQTT-related commands that can be used to publish data not only directly to Home Assistant, but also to other devices in the MQTT network. This way you can for example control a Zigbee switch directly from OBK, without writing any automations... [Read more]

In the previous topic I managed to capture the HD2015 communication using a Salae logic state analyser, bought for PLN40. Here I will continue the work and try to map this communication in my code written in C, for variety I will use the LN882H platform here. By the way in practice... [Read more]

As part of the device interiors section in this material you will find pictures of the electronics boards of several hard drives, we will see how HDD electronics have changed over the years. The first board is from a disk with a capacity of 40MB . Many discrete elements can be seen.... [Read more]

I noticed this pull request (PR) to add support for AHT10/AHT2x/AHT30 temperature and humidity sensors. We've seen the AHT30 in use in the TH01 device, but it is controlled by a TuyaMCU so does not need a driver for direct control by OpenBeken (OBK) in that instance. Same situation... [Read more]

Hello, I would like to present one of my altogether recent projects, which arose from the need of the moment. It concerns a small loudspeaker with a surprising sound. Unfortunately, due to time, not everything was completely done correctly, for example the final measurements were... [Read more]

. Here I will present another popular piece of equipment from the communist era - the Amator radio, or more precisely the 2B version (DSS201). The Amator 2B differs from the Amator 2 in that it has no tuning indicator. Amator 2 allowed the reception of long wave, medium wave, short... [Read more]

The K-type thermocouple together with the MAX6675 A/D converter module allows you to easily measure high temperatures from 0°C to 800°C with 12-bit resolution. The kit presented here operates on a voltage from 3 V to 5.5 V and uses a simple SPI protocol for communication, which can... [Read more]

The FUT036 LED strip controller first appeared on our forum when a user asked about the possibility of changing the firmware of the CB3S module from inside, but did you know that the same controllers are available in a version based only on RF, without WiFi? Here is exactly such a... [Read more]

Born of some initially unsuccessful fiddling in this post where I was trying to flash a BL602 device factory firmware dump to an Ai-Thinker dev board , it seems the Single Download Option in Bouffalo Lab Dev Cube (BLDC) might well be the way to restore a full flash dump to any BL602.... [Read more]

Two days ago a days ago, an interesting discussion thread appeared on hacker news, on what users are building using the ESP8266 with ESPHome software. Let's try to summarise the discussion. And what are our users build with ESP8266 or ESP32? :) Promote your project or idea here! :)... [Read more]

Kia ora/Hi all, I picked up several of these : PROGLO Obi Smart Light Bars, 2 Pack H: 285mm Incl Base Link on special about a year ago and finally got around to getting them flashed with something useful. They are a CBU BK7231N based PCB, with 12V input and step-up/down ladder along... [Read more]

Hi All, Today, I received my two Woox R6132 SMART WIFI MULTI POWER SOCKETS. They were reasonably priced, and buying two saved me on shipping costs. The device consists of 4 relays. Three of them control the power sockets, and one controls the power to the USB ports for charging your... [Read more]

These original devices (with BL602 chip) can be flashed via WiFi to OpenBeken without soldering. This is done via manufacturer's OTA mechanism, but from your own server. Doing this step by step the procedure is as follows: 0. Reset the device to factory settings - switch the controller... [Read more]

A contact at Lightning Semiconductor, who has been very helpful on Gitee and email, pointed me to this module on Taobao when I asked about getting an LN882H and/or LN8825B development board. LN8825B has been discontinued and is no longer in production and Lightning Semi do not ship... [Read more]

OpenBeken is able to request and list all available dpIDs of TuyaMCU devices. This can be used for futher processing of the data in Home Assistant. The following tutorial assumes that you have already flashed your device and wants to get dpIDs, if you haven't flashed it already, please... [Read more]

Today we are reworking another WiFi-controlled relay so that it works fully locally, without the manufacturer's servers. The product shown here can be purchased in our country for around PLN40. It appears under the name QS-WIFI-S03, also sometimes called SB436. Instruction manual... [Read more]

Today I will present the interior and firmware change of a strip/extender offering three power sockets and four USB sockets, in addition with QC support. I will upload open source software onto the product OBK so that it works 100% locally, in a way that is secure and respects the... [Read more]

Open-WebUI is a great tool for running locally multimodal Large Language Models, but not all of the models are available for download directly through the OWUI web panel. Luckily, GGUF models can be downloaded externally and then uploaded to OWUI through the experimental GGUF import.... [Read more]

My previous topic about creating charts on Arduino R4 received a greater response than I expected, so now, for a change, I am making a similar project but in a more complete form and on the ESP8266 platform in PlatformIO. Typically, the whole thing will be assembled from ready-made... [Read more]

Zamel participated in Light&Building! #BeElectrified From 3 to 8 March 2024, Zamel participated in the most important trade fair for the electrical industry in Europe - Light&Building, which took place at the Messe Frankfurt centre. This year, more than 2,500 companies from all over... [Read more]

In this topic, I will modify the N-TS10-W1 light switch based on the CB3S module. In contrast to previous switches In this series, however, it will not be possible to automatically configure GPIO based on the Tuya partition, so I will have to discover it myself using the GPIODoctor... [Read more]

Here I will test in practice the ability to analyze photos by the LLaVA AI model, which I managed to run locally on my computer. I will check how advanced this model is and how well it can describe photos from the workshop, and I will also check whether it is able to read text from... [Read more]

Welcome, I present my construction made completely from scratch. It is an electric cross with MIDDRIVE motor. The geometry is similar to the surron. Frame drawn in Corel and milled from 7075 aerospace aluminium on CNC router (10mm body, 20mm swingarm). Fardriver ND72360 controller... [Read more]

Today we are changing the software of the Tuya RGBCW 30W ceiling lamp in the "slim" version. The goal will be to free it from the cloud and connect it to Home Assistant. The presented ceiling lamp is characterized primarily by its compact design and additionally has a remote control,... [Read more]

First time playing with flash. Bulb with action, none of the configurations fit. The bulb has been present in at least 3 revisions. One of the forums had identical packaging but on the BP module. Tuya cloud-cutter does not work due to version 1.5.21. I disassemble the bulb, remove... [Read more]

It would seem that today`s great AI models are inextricably linked to the cloud, and therefore also to the lack of privacy - nothing could be further from the truth! I will show here how you can easily download and run a 100% locally interesting alternative to ChatGPT along with a... [Read more]

OpenBeken IoT device simulator allows you to run a virtual OBK device to try out OBK scripting, MQTT setup and Home Assistant pairing. You can also sketch connections of your virtual WiFi module to connect peripherals like buttons, relays, LED strips and even power metering modules... [Read more]

When I posted a short piece on fusible links, I got a hint from @398216usuniety that it was worth raising the subject of the risk of a fuse exploding when the short circuit current is too high . I have collected several fuses from various places 3.15A of various types. In the material... [Read more]