Articles

Basic Information: Brand: Merkury Model: MI-BW904-999W Chip: WB2L Vendor: Walmart (bought in December 2020 for about $5) Regular disclaimer: electricity kills (some), always remove power, tear down at your own risk, etc. Teardown Photos The plastic dome is glued with some... [Read more]

I will show here how you can mass configure and control IoT devices flashed with Tasmota or with Tasmota-compatible, cross-platform OpenBeken . Configuration will be done by sending console commands in the HTTP GET request. This will allow, for example, to set MQTT server parameters... [Read more]

Many new smart LED strip controllers are produced without any buttons. This makes LED control impossible without a mobile phone or a voice assistant, this also makes them useless when the WiFi is out. Here we will show you how to fix it - we will use OpenBeken to bring back the missing... [Read more]

This article describes building a programmable speed regulator for brushed DC motors that are low-noise, powerful and inexpensive. Changes in temperature, voltage or motor load do not impact the regulator. Moreover, this circuit is unaffected by the motor coil’s resistance, enabling... [Read more]

Internet-of-things applications are built on intelligent, networked electronic devices that are most likely battery-powered and transmit pre-processed data to a cloud-based infrastructure. An IoT device uses a variety of embedded systems, including processors, communication ICs and... [Read more]

This teardown is complete. I got everything working now (except of course the BLE wireless remote): It looks like we have to use the native interface instead of the web app for this device since it is RGBW (warm white.) It appears that it needs flag 24 in order to work correctly.... [Read more]

Hey all - Yet another small in-wall relay. Looks very similar on the outside to the Aubess model, but it seems with a different board (so I figured it was worth it's own thread.) Product URL: Chip: CB2S (BK7231N) Flashing: Simple enough to flash, solder directly to the Tuya chip (no... [Read more]

I invite you to a short test and demonstration of the use of popular TM1637-based 7-segment display modules. I will run such a module first with Arduino and then without using any library, at the end I will also show an alternative, eliminating unnecessary delays library designed... [Read more]

Hello, this product is the S06 Version of the IR Blaster. For the S06Pro Version I found this Teardown article: Which is similar, has the same package and case but a different pcb and another Chip. I didnt found this product on the official list so I took it on me to make a little... [Read more]

Hey all - Submitting a teardown of the "Cree Connected Max Smart In-Wall Scene Controller". Amazon link: Teardown: It's a pretty simple device, with a rather frustrating disassembly (no screws, all plastic snap fit - felt tricky to crack it open). Multiple layers of plastic, one control... [Read more]

Hi! Here is a teardown of a r generic smart switch from aliexpress. On Tuya app is named: Latched hidden Switch Single pro Bought From: Pictures: Flashing: Is simple to flash with tuya-cloudcutter: sudo ./tuya-cloudcutter.sh -p aubess-16a-mini-smart-switch -fOpenBK7231N_UG_1.15.517.bin... [Read more]

Hi! Here is a teardownon of a Moes 3 gang module wifi. I bought it from: AliExpress Datasheet: Module CBU (BK7231N) Flashing: I could flash lastest BK7231N using the BK7231Flasher v1.0.6 and a FT232RL FTDI Adapter. Config: "pins": { "7": "dInput_n;3",... [Read more]

Just buy a couple of this smart bulb and teardown one to have the correct pin out and firmware : So simple beken7231 around a CB2L. seems like only two pin is used to SCL and SDA of the BP5758 i have submited the update on Cloud Cutter, but if someone need to flash them any device... [Read more]

Device Name : Deta Grid Connect Smart Quad Gang Touch Light Switch - 6904HA Device Type : Light switch Device Chip : WB3S - BK7231T Device Purchased : Bunnings Warehouse - $73.58AUD Flashing of Main Chip Manually flashed the chip with BK7231 GUI Flash Tool . WB3S Module Datasheet... [Read more]

Device Name : Deta Grid Connect Smart Single Gang Touch Light Switch - 6911HA Device Type : Light switch Device Chip : WB3S - BK7231T Device Purchased : Bunnings Warehouse - $56.63AUD Flashing of Main Chip Manually flashed the chip with BK7231 GUI Flash Tool . WB3S Module Datasheet... [Read more]

Device Name : Deta Grid Connect Smart Fan Speed Controller with Touch Light Switch - 6914HA Device Type : Fan and Light switch Device Chip : WB3S - BK7231T Device Purchased : Bunnings Warehouse - $59.36AUD Flashing of Main Chip Manually flashed the chip with BK7231 GUI Flash Tool... [Read more]

Device Name : Mirabella Genio Wi-Fi Dimmable LED Bulb Device Type : 15W ES Par38 Device Chip : CBU - BK7231N Device U1 Chip : SM2135EH - BGBISYAA05 Device Purchased : Bunnings Warehouse - $25AUD Flashing of Main Chip CloudCutter Profile - oem-bk7231n-light-ty-1.2.7-sdk-2.3.1-40.00.json... [Read more]

Here's a detailed firmware change guide for Magic Home LED strip which is using BL602 WiFi SoC. The video includes step by step soldering instruction showing how to connect USB to TTL converter to the board and also shows how to use BLDevCube to program new firmware. Initial device... [Read more]

Hello everyone :) In particular, lovers of lights, illuminophonics, etc. The presented device displays the acoustic spectrum in the form of 20 bars, 16 points each. It's hard to call them a spectrum analyzer. I associate the analyzer more with a measuring device, although the... [Read more]

I will show here the configuration and operation of the window / door opening sensor in OpenBeken , realized without TuyaMCU, i.e. based on the deep sleep of the WiFi module. The sensor implemented in this way connects to WiFi only when you need to send a state change to the MQTT... [Read more]

This is my experience with flashing OpenBK firmware onto a KMC smart plug. The Device KMC 30153. A "smart mini plug" rated for 15A 125VAC 60Hz. Not so mini however. Plugged into a standard US double socket outlet, would not allow using the other socket with a three prong (grounded)... [Read more]

The increase in the number of electric cars is transforming manufacturers’ choice of power supply from 12 V to 48 V. Higher voltages offer more power to drive power systems while reducing weight and cost of wiring. All devices in modern automobiles require more electricity,... [Read more]

Many educational platforms have been created, from very simple to very advanced. Depending on the user's requirements, one of such platforms for the youngest is the BBC micro:bit (in various versions) based on the Nordic nRF51822 microcontroller with the ARM Cortex-M0 core. For... [Read more]

Some IoT devices are powered by electric battery and rely on ADC pin to do the battery measurement. The issue is that the voltage value generally exceed voltage reference of Beken ADC pin who is by default 2400mv. So to bypass that issue Tuya implement some voltage divider activated... [Read more]

Hello, today I will present here the second fryer with WiFi on Elektroda. I showed you a year ago BH-AF2 , now it's time for a twin product, the BW-AF1. I will show briefly its configurations for Tasmota ( TYWE3S ), and then I'll try to change her WiFi module to one with BK7231T... [Read more]

I received a new bulb from Moes, it costs $9.49 with free shipping This is a heavy bulb and it's indeed very bright The bulb uses BK7231 - CB2L but unfortunately Moes filled the bulb with epoxy and I couldn’t disassemble it without causing permanent damage. But thanks to Lightleak... [Read more]

Hello, Here's a quick Cheat Sheet regarding the available commande on SHT Sensor to be able to manage it completely. First to make command available you need to start the SHT Driver : it will start by default a measurement every 10 seconds. Once driver is avalaible you have access... [Read more]

Remove 4 screws from back. plate appears to be clipped in place but its not. only friction holds it on. use something to gently pry along the edge and lift over the plug. remove the 2 screws from the circuit board and take it out of the case. remove the CB2S chip from the board with... [Read more]

Here's a detailed guide showing how to change the firmware of new Sonoff products using BL602 WiFi module. In this case we will program the E27 B05-BL-A60 bulb and setup the BP5758 LED driver, but the similar approach can be used for many other BL602-based products. Here's the guide:... [Read more]

Silicon carbide and gallium nitride power devices have seen increasing usage in some key, high-growth applications in recent years. GaN is now used in mobile device chargers and charging systems. Companies like Apple, Samsung and Xiaomi have chosen GaN-based chargers that provide... [Read more]