Articles

Are you looking for a simple to run but effective LED strip for TV mounting? I've got something for you - treat yourself to a report on the installation, setup, calibration and month of using the LED light Govee TV Backlight 3 Lite tested on a 42-inch TV. What you need to know to... [Read more]

BK7231GUIFlashTool version 98 and above introduces a new Beken flashing method via SPI. Only a CH341 SPI programmer is required. This method can be used to recover bricked Beken devices whose bootloader has been overwritten. It can also serve as a general-purpose SPI flasher, supporting... [Read more]

. Ever wondered what a remote control for an electric kettle could offer us? The SMART06B has just such a control - all thanks to its built-in Wi-Fi module and compatibility with the Tuya mobile app. Here, I'll try to check it out and showcase it, including the centre of the device.... [Read more]

. The Orno OR-SH-17200 WiFi Tuya single switch is another product that can be easily freed from the cloud and connected to the Home Assistant. What's more, inside it you will find a CBU module based on the BK7231N, which allows various interesting modifications after changing its... [Read more]

. Shown here is a tiny but simple to reprogram garage door controller. The controller shown here normally interfaces with the Tuya cloud and offers door status detection based on an external sensor and the ability to simulate the pressing of a door button via a single voltage-free... [Read more]

I. Introduction During embedded system development, measuring various signal waveforms is a crucial troubleshooting method. Bench oscilloscopes are typically used for waveform analysis, but their large size makes them inconvenient for field testing or travel. For some individual developers,... [Read more]

PCBWay offers free purple solder mask and up to 80% off TPU 3D printing in September PCBWay announced two promotional offers available from September 1 through September 30, 2025, designed to give customers greater flexibility and cost savings on PCB and 3D printing services. The... [Read more]

Hi Guys, I post this information, as a work/response for old threads for this device : Earu EAKCB-T-M. Device is not listed in device database. Device was listed as work in progress 3 years ago Device was reported unstable (restart when button pressed) ( Original Polish thread here... [Read more]

. Here I show how to run an RGBW LED strip with DMX512 based on firmware WLED on a board with built-in RS485 support. DMX512 is a communication protocol used primarily in stage lighting that allows multiple devices, including coloured LED strips, to be controlled over a single RS485... [Read more]

Hi, . The project presented this time is purely programming but I hope it fits in this section and maybe someone will find it interesting or useful in the workshop. The aim of the project was to create a convenient-to-use GCode generator for making PCBs on a CNC milling machine. I... [Read more]

Waveshare ESP32-S3-Relay-6CH is an industrial-grade relay control module based on ESP32-S3 WiFi & BT module. It features RS485 connectivity, on-board USB to UART converter, six relays connected via PC817 optocouplers, a single WS2812B diode (for status display), onboard GPIO connector... [Read more]

Google has announced the end of support for older models of the Nest Learning series of thermostats. From 25 October 2025, these devices will no longer connect to Google Nest or Google Home apps. This means that equipment advertised as smart will suddenly lose much of its functionality... [Read more]

Here's a swift tour of a basic CozyLife B22 9W CW/WW LED bulb bought from Ali Express The box gives the impression it's an RGB bulb, but it's just a generic box that's been seen with many varieties of bulb. This device is cold white/warm white. No markings on the exterior of the bulb... [Read more]

. GitHub Pages is a free hosting service that allows you to publish static HTML pages. However, it does not support running server-side scripts, which means no support for backend languages such as PHP, Python or Ruby. In this tutorial, I will show a potential way around this limitation... [Read more]

. Here I will show how to change the software of a WiFi controlled LED light. The topic will cover its full disassembly, connecting the UART programmer, configuration and restoring the whole thing without glue. By the way, I will also reduce the LED current programmatically to extend... [Read more]

If you're looking for a way to build a smart home that is not only functional but also aesthetically pleasing - Aqara has the perfect solution for you. The new Aqara Panel Hub S1 Plus combined with the Camera Hub G5 Pro PoE is a duo, Which takes smart home to a new level. In this... [Read more]

. Here I will present an individually addressable RGBW LED strip (red, green, blue and white) based on the TM512C4 chip and operating on 24V. I will show here how its DMX512 communication protocol works and how it can be simply controlled from an RS485 ESP32. I will use the ESP32... [Read more]

Hello, I'm back with an another smart bulb and this time it's a BK7231T-based device (The module inside is a WB3L). And... yes this one also came from a flea market The branding on it states it's a ExtraStar A60WIFI-2, the 2 is probably because they come in a package of two. It's... [Read more]

This device is another one of those 16A "DIY" mini switch/breakers that has been seen with quite a few different MCUs, modules and PCB layouts. Without high expectations it was ordered in the off-chance something new and interesting was inside. This time there was! A Winner Micro... [Read more]

. I will present here a surface-mounted thermostat with LCD, external sensor and WiFi-based wireless control. The product shown here is compatible with the Tuya app and has a 5+2/6+1 programming function that allows you to set up to 6 different temperature settings for each day of... [Read more]

 Today, I would like to introduce an interactive Arduino music project. Using six obstacle avoidance modules and DF’s MP3 module, we will build a musical piano (originally, I had eight obstacle avoidance modules, but during assembly, I found that two were incompatible and lacked indicator... [Read more]

. Which silent light switch for the Home Assistant? Here is another product compatible with our Polish open source IoT software - ATLO-TB2-TUYA. This time without the relays. I will present here the double version, i.e. with two buttons, although you can get the same thing in a single... [Read more]

. I invite you to a short test, presentation of the interior and change of firmware of the "intelligent" power strip model SL-PS27. By the way, we will also find out what is the "laptop overload protection" that this power strip supposedly offers. We will start by purchasing the power... [Read more]

Hello, fellow engineers! As a newcomer, I've decided to post more articles to get my name out there (and earn some internet fees). Haha. Today, I'm going to talk about a simple magnetic levitation circuit. I've always wanted to try magnetic levitation, but some Arduino projects require... [Read more]

Quick look at an Aiyato CozyLife Homekit bulb I bought in November 2024 and forgot about. C37 homekit module - I had to de-can it to check the chip. Couldn't see much about it Googling - ESP8684H2 It's a DOIT (Doctors of Intelligence & Technology) ESPC2-05 module (datasheet attached)... [Read more]

Here I'll present my findings with a new Tuya device based on the Beken BK7238 MCU, packaged as a Tuya T1-U-HL module. For more general information relating to the T1 series and BK7238 uses see: T1, T1-M, T1-3S Tuya BK7238 module datasheet, pinout and flashing, Home Assistant NiceMCU... [Read more]

. Aqara Panel Hub S1 Plus is a smart panel that combines the functions of lighting control, switch and building automation centre. It has a 6.9-inch touchscreen, voice control and app integration. It works as a Zigbee hub and supports Matter, ensuring interoperability with Aqara and... [Read more]

How can you receive IR events on a Tuya BK7238 device (T1, T5) using a development board or a universal remote? How do you forward IR codes to Home Assistant in Tasmota JSON format? How can you trigger HA automations with any remote? And how can you control another device directly... [Read more]

Inspired by the "charts" driver with many functions and possibilities I thought about a small alternative, allowing to generate a simple SVG graph of data. I specially liked the possibility not to load JS code from "outside" my network but being able to store a small version in flash... [Read more]

. OpenStreetMap (OSM) is an open and free world map, used in many applications for navigation, data analysis or geolocation. One useful feature is reverse geocoding - that is, converting geographic coordinates into readable addresses. The public OSM API, however, imposes all sorts... [Read more]