Articles

I will show here the design of a clock built on ESP8266 and MAX7219 based display, additionally enhanced with a relay module on MCP23017. The PCB under the ESP will come from the web, the relay module on the other hand I designed myself. I will assemble the firmware myself in PlatformIO... [Read more]

Motivation 8 years after mine last project I once again had the urge to build another Nixie clock. And as we know, lamps are an essential element of every such clock. They no longer produce such lamps (except for a few cases of hobbyists who bend numbers from wires in the privacy... [Read more]

I got a couple of Aldi (Australia) CasaLux Corner Lamps. There is no product URL that I can find anymore but the box looks like this: After I added it to Tuya app this is what options are in it: The DP Ids I have found in Tuya IoT are: { "result": { "properties":... [Read more]

Today we are flashing Tasmota to the Appio/Lumenix 9605 light switch, which is distinguished by the fact that the TYWE3S has non-standard GPIO pins inside. The switch discussed here works without a neutral wire and also offers control via RF 433MHz, which makes it a quite universal... [Read more]

Recently, while uploading Tasmota to another series of WiFi-controlled light switches, I came across something that really surprised me. It was a TYWE3S module with non-standard pinouts that did not match the Tuya documentation. Here I will provide its RX, TX and GPIO0 location and... [Read more]

JLCPCB, a leading provider of high-quality PCB fabrication and assembly services, is thrilled to announce its Black Friday promotion, offering customers the opportunity to save big on their electronics projects. With the upcoming shopping season just around the corner, JLCPCB is ready... [Read more]

Description I bought several Feit Electric Smart Bulbs from Costco around Summer 2021 (BPA800/RGBW/2), item 1528975. This year I finally had time to set them up for the upcoming Halloween. Turns out there are two types of light bulbs, even though item numbers are identical: - 228-21-17... [Read more]

Hama WLAN-LED-light bulb E14, 5.5W, RGBW, dimmable It has a WBLC5 with BK7231T built-in. There is no dismantling necessary since it can be flashed with tuya-cloudcutter following those instructions This is the command I used and followed the displayed instructions there sudo ./tuya-cloudcutter.sh... [Read more]

Today I am presenting a rather unusual Sonoff energy meter, which is distinguished by the fact that in addition to sharing measurements via a mobile application, it also displays them on an LCD display. This allows you to quickly check how much electricity and energy the connected... [Read more]

Hello everyone. This time I would like to present the I2C clock synchronizer with time downloaded from the Internet. Using the previously presented clock on the Z8, I thought it would be worth extending it with this possibility, hence the presented circuit was created. The system... [Read more]

I bought a Wifi module with additional 433 MHz RF remote control from Aliexpress to be able to control our sunblind with HA. In contrast to the even cheaper models, it has eight instead of six terminals, so you don't need any additional connectors for the neutral conductor (and phase... [Read more]

Here I will show you how to create a simple, scriptable button in Home Assistant. Our button will be displayed on the Dashboard and will activate the automation we have selected. I will also show how you can script this button to publish data to MQTT when pressed. Finally, I will... [Read more]

Here I would like to show how we reverse-engineered an interesting Tuya lamp, based on individually addressable LEDs that can produce various types of animations, such as "waterfall", "fire", etc. The goal of the topic will be to free this lamp from the cloud and replace the original... [Read more]

You can buy it on allegro.pl Unfortunately, I have upgraded it to the latest firmware (v1.5.21) so the tuya-cloudcutter didn't work. These are my first steps in this topic, no previous experience with smart bulbs, Tuya, alternative firmwares, etc., hence this fault ;( Dodano po 16... [Read more]

I came across a seemingly ordinary smart switch. But inside there is some kind of simplified version with a BK7231N chip. At first I decided to flash it with Tuya-Convert, but the version of the native firmware was 1.3.10 and it did not allow flashing wirelessly. After calling the... [Read more]

Arduino R4 has a built-in 12-bit DAC (Digital-to-Analog Converter), which means it is able to generate an analog signal without connecting additional modules. This is a big step forward, because in the case of the older Uno R3 and similar boards we had to connect an external DAC such... [Read more]

Device Name : Mirabella Genio Wi-Fi LED USB Desk Lamp With Wireless Charger - I003867 Device Type : Desk Lamp with Qi Charger Device Chip : WB3S - BK7231T with TuyaMCU Device Purchased Bunnings Warehouse - $29.95AUD - Appears they not stocking this anymore and selling last of stock... [Read more]

I'd like to invite you to a hands-on demonstration and first steps with the Sipeed M1s Dock module with a 2MP camera with MIPI CSI interface and a 1.69-inch 280x240 capacitive touchscreen display for AIoT applications. The module was already briefly presented in the topic: Sipeed... [Read more]

Hello, I've recently found this smart plug at a France store (La Foir'Fouille) for really cheap (less than 5 dollars on sale). So I teardown the device (using a flat screwdriver and some brute force), and found the chip is a WB2S with a BK7231T. Great news! I flash the firmware using... [Read more]

I bought an IRC03 Universal IR remote control from Aliexpress and would like to share my experience here: The device itself is small, very well designed and comes with a USB C cable. It illuminates the room well in all directions with its seven ir leds. This is the information on... [Read more]

Some of new Tuya IoT devices are based on FL_M99_V1/FL_M99_V2/FL_M99_V3 modules, which are using BK7231N/BL2028N WiFi 2.4GHz + Bluetooth microcontroller. They can be flashed with OpenBeken, which will provide basic Tasmota compatibility and Home Assistant features. Here's a basic... [Read more]

Today we will show you one simple method that allows you to easily solder components such as capacitors and coils from a laptop motherboard without using hot air. This method is based on using two tip soldering irons to heat both pads of the component simultaneously. The entire method... [Read more]

Hello, This is a teardown for a cheap garage door controller device bought on Aliexpress. It has a BK7231T / WB2S chip. It requires soldering to flash OpenBK. Info Summary: Model/SKU from Box: MS-102 Model/Revision from the Board: HG041-20211220 Chip: BK7231T / WB2S Rated Voltage:... [Read more]

It is difficult to open the whole switch because the pins going to the board are not plugged in, but soldered. I wasn't able to desolder them. I lifted the board and soldered only RX and TX (according to the CB3S module documentation), and connected the power supply to the extreme... [Read more]

Some time ago I showed the Sonoff THR320D thermostat with display and presented the possibilities of the eWeLink application. This time I will continue discussing this product, but here I will focus on its interior and on changing its firmware to Tasmota, so as to completely free... [Read more]

Hello, today I will briefly show you a useful board that is essentially a USB to UART converter, but is distinguished by the fact that you can place a module with ESP12-compatible pins without soldering. We found the tile in China under the slogan: ESP8266 ESP-WROOM-32 ESP32-WROVER... [Read more]

Today I am presenting another controller of my creation for the solar tracker (the first one from 2011 is described here: Photovoltaic panel turntable controller ). This time, a rudder designed for a friend who made the mechanics himself based on an old trampoline, or more precisely,... [Read more]

This is a short teardown of Au type Generic Tuya 2 Gang GPO Basic information: Brand: Shawader (Tuya based) Model: Smart WiFi Wall Socket Chip: BK7231N [CB3S] Local Vendor: These switches look a lot like Makegood GPOs Main Module version in the Tuya app was V1.1.15 (I couldn't find... [Read more]

Dynamic power saving can be used to reduce energy consumption of the WiFi module. It can also reduce the heating of board and increase stability of the device. Sometimes power saving may be required for some cheapest Tuya devices, because their power supplies are not able to provide... [Read more]

Hello :) I present to you another implementation of a Christmas decoration. The project was created for Christmas 2021. I used 12V LED "neons" for construction. The animation (hand waving) is controlled by a simple generator circuit based on CD4093. The main structure is a circle... [Read more]