Articles

Hello. Today I'm going to show a short, emergency 3D print that might come in handy for someone - a "triangle" key for KS-17 security padlocks fitted to electrical boxes, for example. The key itself is readily available for a few zlotys, but what can you do when it's Sunday, the shops... [Read more]

Here's a step by step guide showing how to use OpenBeken to create a simple Weather station with DHT11 sensor. The guide covers OBK programming (for W600 platform), initial setup (pairing with WiFi), then shows a short example showing how to use a LED and Button with OBK, and finally,... [Read more]

It's time for a review and release from the cloud of another small module for the box, this time offering control of two relays via WiFi, additionally allowing you to connect two switches to them. The module described here was bought in our country this time, so there was no waiting... [Read more]

Hi, I am adding a teardown and flashing of Merkury RGB LED Strip. I got this device as part of a Walmart bundle with a Google Home Mini as a Black Friday deal. It is a USB Powered RGB strip, using RGB PWM to power the 3 colors LEDs on the strip. This strip also draws a rather signifcant... [Read more]

Changing the firmware of an IoT device usually takes place in two steps: first, a new batch must be uploaded (usually via UART), and then the new firmware must be properly configured to work with our equipment. This configuration includes assigning the role to selected GPIOs, i.e.... [Read more]

Here I will present an in-depth analysis and reverse engineering of the Tuya battery temperature/humidity sensor implemented on the basis of the TuyaMCU protocol, i.e. having a separate microcontroller (always on, but using sleep mode) and a WiFi module (its power supply activates... [Read more]

Hello, I will present here the interior and configuration of Tasmota for a rather unusual WiFi-controlled plug/socket with backlight composed of RGBW diodes. As a standard, we will free the nest from the cloud and prepare it to work with HA. The plug described here offers basically... [Read more]

Plug purchased on ali in the promotion "3 items from" for 2.99 USD as 20A with energy measurement. The box is completely noname, there are also no inscriptions on the plug. Plus there are two diodes - blue for wifi, red for on / off. Link without promotion: link Initially I was going... [Read more]

Here is a short presentation of the interior, firmware change and a template for the MOKO Smart Bulb C37 E14 5W 400lm LED lamp built on the basis of a rather unusual WiFi module with BK7231T. Materials for this topic were sent to me by user @dedamraz, so this time it will be short.... [Read more]

Here I will show you how to flash a new version of TYWE2S (ESP8285) Tuya WiFi module. Old TYWE2S had GPIO0 pad on the back, but this TYWE2S comes without any extra pads and has no markings. I've received one in a LSPA9-like smart socket with BL0937 power metering. Here I will attach... [Read more]

Producer: Ezvis Model: C6C (CS-CV246, A0-3B1WFR) Description: Cheap Wifi camera by Ezviz operating via Hikvision protocol on port 8000 with RTSP on port 554. Based on STM8S003F3 (8S003F3P6) microcontroller (16-MHz STM8S 8-bit MCU, 8Kb flash, 128b EEPROM, 10-bit ADC, UART, SPI, I²C).... [Read more]

Every OpenBeken/Tasmota/etc device requires a brief configuration after the initial flashing of the firmware. This configuration requires setting a proper roles for GPIOs, which are different for each device. Here I will show you an automatic way to configure GPIOs in OpenBeken. In... [Read more]

Here's a step by step guide showing how to make a BK7231 development board (WB3S and CB3S versions) from a very cheap NodeMCU ESP8266 board, by doing a simple WiFi module transplant. First we desolder ESP12 module with a hot air station, and then we solder a CB3S (or WB3S) in it's... [Read more]

Producer: Ezvis Model: CS T30 10A Socket with FW dedicated to the Ezviz application, but it is also sold by other manufacturers as WiFi socket WG08 Tuya and then it can be added directly to the Tuya application. I decided to do a teardown because I don't see anyone looking at... [Read more]

I will show here how you can use the OpenAI API to create a smart home assistant. Our assistant will have ChatGPT abilities, and at the same time will be able to control the status of lights (and other devices) in our house. The assistant will understand complex language commands,... [Read more]

bought this Skylight opener and switch from AliExpress Link with the EU Wifi Switch. My skylight is out of reach and I have to get a ladder from that garage to open it! My original intention was to use it with Local Tuya (this would have been my first) within Home Assistant (HA) as... [Read more]

Name on sale: Autonomous Tuya window door opening sensor Label name: Heckermann, Product: Wifi Door Window Sensor, Model: PB69 Device photos: Disassembly photos: Microcontroller: CB3S (BK7231N) PCB: PB-69W VER 1.3 20211112 Pin description: PIN GPIOs PWM Function Description 3 PRICE... [Read more]

Since I didn't find any tutorials related to the Magic Home single-color LED controller I used this post as a starter/reference guide. The main focus was only on controlling the LED PWM signal using HomeAssistant . As the first step, the device was disassembled, revealing the BL602... [Read more]

In older electronic equipment that has been withdrawn from use, you can find interesting elements, including various types of microcontrollers. Although nowadays 32-bit microcontrollers with high computing power and network interfaces are easily available for a small amount of money,... [Read more]

I will show here how to run ChatGPT on ESP8266 - not directly, of course, but through the OpenAI API. I will demonstrate a simple code that sends an appropriate request to the API via HTTPS, along with an overview of the API key transfer and JSON format support. The result will be... [Read more]

This assembly is universal. Suitable for all types of AC devices. You can control the device manually through SW1 but remotely only when SW1 Closed. And you need to configure Startup like this: When SW1 opened, Sonoff Offline. In order for Sonoff to stay in line with SW1 Open, we... [Read more]

I will show here how to create a website for any IoT device on multi-platform firmware OpenBeken , although the same approach will also offer compatibility with Tasmota (compatibility of sent commands and returned JSON format). We will write the device control page in HTML and Javascript,... [Read more]

Product Information This is a four socket powerboard with in-built USB chargers (USB-A and USB-C, 5v 3.4 amp combined). The four power sockets can be controlled on or off via WiFi, and there is a master On/Off button which - by default using Tuya - turns off all four ports. The model... [Read more]

A while back I posted the teardown and OpenBK configuration of the Cool/Warm White only version which can be found here . Finally I gotten around to flash the RGB variety of these downlights. Starting with the pictures of the box: Pictures of the device: Opening up: Flashing: I dreaded... [Read more]

This is the teardown of a device providing temperature, humidity and luminosity information through Tuya Smartlife, with Wifi. Another version exists with ZigBee protocol. This wifi version also provides a clock and date, which is quite practical. Here is a review of the ZigBee version... [Read more]

When your phone rejects incoming calls it is worth checking or making: -Incoming call settings: Phone settings->Applications and notifications (or similar option, depending on your phone model)->Telephone/Calls' is the Block all incoming calls option turned off? -Call forwarding... [Read more]

Bought from here: Link Page screenshot: Package contains strange circuit breaker, without automatic magnetic field coil trip mechanics. It seems to explore 8 bit MCU + bistable relay for trip. Main module is PFS-B containing ESP8285 CPU. Although there is powerfull 32 bit CPU there... [Read more]

Here is a small program that allows you to analyze the content of TuyaMCU eavesdropped packets. The program shows the type, length and content of the packet, broken down into dpID variables, their types and values. The program allows you to quickly find out what the dpID we overheard... [Read more]

Device Name: Mirabella Genio Wi-Fi Door and Window Sensor Device Type: Door and Window Sensor Device Chip: XR809 - XR3 Device Purchased: KMart - $27.00 Flashing of Main Chip XR3 Module Datasheet You will need to download phoenixMC.exe Step 1 - Connect your hardware to your UART device.... [Read more]

This is a short teardown of the GY gu10 which is based on BK7231N and it uses a tuya module CBLC9 and BP5768 Basic Info: Flashing OpenBeken firmware: Using cloudcutter Select OpenBK7231N / By Fimware version and name / 1.3.21 BK7231N / Kanlux / 33643 GU10 RGBCCT after the firmware... [Read more]