Articles

Hello, I will present here the SM2135 I2C RGBCW bulb configuration for OpenBeken. I will also provide some technical details about how the SM2135 I2C RGBCW protocol works. The bulb described here has WBLC5 module (BK7231T) and the SM2135Eh constant current LED controller. Purchase... [Read more]

Product information Tuya 4 CH touch switch for Roma fitting for Indian homes, it has CB3S chip (BK7231N) Technical Specs TuyaMCU: T1616-N TH 2720E (ATTINY1616) Darlington transistor array ULN2003A Relay: 5A 230V x 4 Power Module: HLK-PM01L This switch consists of 3 board, soldered... [Read more]

Protium 4 Gang ON/Off Modular Smart Switch, Fit on 2 Module of Roma Plate for Indian homes. This device has WB3S (BK7231T) chip and TuyaMCU Product Images How to open The switch touch plate is mounted to the housing with 4 clips, 2 on each sides. Gently press the clips inside and... [Read more]

Hello, today I will present how to tame another Chinese WiFi + Bluetooth microcontroller, the W800-C400 produced by WinnerMicro. At the moment, you can buy it for about 3$, while the development board costs about 5$ and both of these prices already include the shipment. Of course,... [Read more]

In this thread I'll explain how to re-flash this TuyaMCU smartswitch with OpenBeken and connect it to HomeAssistant . OpenBeken is an alternative, open source software for IoT devices, offering, among others independence from the manufacturer's cloud, compatibility with many ecosystems,... [Read more]

What some on the forum know is that I like LED blinking. In this project, I gave it the maximum vent and was able to get carried away by the wave to such an extent that by the end I had had enough :) You remember Earth Command Center by colleague @ reaven22? Yes, it was his design... [Read more]

Hello everyone. Recently, I have measured several dozen handheld antennas and 3 car antennas in the amateur 2m and 70cm ranges in an amateur way. Here is the list: 01 Retevis RHD771 (2.15dBi) Aliexpress RETEVIS Official Store 03 Nagoya NA-771 (2.15dBi) Aliexpress? 07 Yaesu VX-6R Factory... [Read more]

Hello, I will present here two seemingly typical LED lamps (E27 and E14) RGBCW Tuya Smart, which are distinguished by the fact that they are extremely difficult to program due to the obscured UART pads in the WB2L_M1 (BK7231N) modules. Normally, to change their charge, you would have... [Read more]

The Nous Smart socket A1 contains a BK7231N and BL0942 power monitor. The BK7231N is soldered to one of the pcbs and is not on a separate module. Disassembly of the device is easy as there is a triangular screw under a paper label stuck onto the transparent plastic part of the socket.... [Read more]

Hello, I will present here how the DT-BL10 development board looks in practice, offering BL602 from Bouffalo Lab, i.e. a Wi-Fi + BLE microcontroller clocked up to 192MH. I became interested in BL602 because it started to appear in various types of IoT devices, such as smart LEDs,... [Read more]

Hello. I will present a simple repair of a smart device (in this case, the smart WiFi relay ZN268131) which after some time began to emit a quite loud and clearly audible operating sound at night. The sound was not uniform, more intermittent, and the standby LED flashed slightly to... [Read more]

Here I will show how you can easily use a TuyaMCU device (dimmer) with my OpenBeken and connect it to Home Assistant . OpenBeken is an alternative, open source software for IoT devices, offering, among others independence from the manufacturer's cloud, compatibility with many ecosystems,... [Read more]

I will show here a slightly less typical type of WiFi transmitter, which allows you to use the bistable button you had previously to control the device. I will also show how you can convert any other kind of smart switch to work with external bistable button by using OpenBeken . Classic... [Read more]

QIACHIP Universal WIFI Ceiling Fan Light Remote Control Kit model: KLCW-110v/220v buy: amazon.com , aliexpress.com It transforms your traditional ceiling fan and its light into a "smart" fan and light! This controller has the following functions: Turn the fan on or off. Turn the light... [Read more]

I was hoping to buy the sockets that were ESP based so bought two different versions at very different prices, however these had CB2S modules, after some searching I found this site and the excellent work on OpenBK7231N. These are the sockets - both look exactly the same inside and... [Read more]

Hello, here I will present the short teardown and OpenBeken programming guide for Gosund Smart Switch SW5-A-V2.1 with an unusual BK7231T module inside, which I am going to desolder with hot air in order to make high res photo of pad. The switch was donated to me by Jennifer from USA... [Read more]

Hello I would like to present the 1.9 DIY-A586 version, with the modifications that have come to my mind over the years. I skipped a few numbers so that I would not be tempted by another v1.x from XC6SLX9 :) . Differences: 32MB RAM, JOY1 / 2 without multiplexing, 2 flopps without... [Read more]

Hello, I will present here the Tuya water (flood) sensor with WiFi XR809 module and then I will show my alternative firmware intended for this type of sensors. It will be another port of my OpenBeken, which currently supports as many as four different platforms (BK7231T, BK7231N,... [Read more]

I will present here my Tasmota replacement designed for the BL602 platform by Bouffalo Lab, offering, among others. the ability to pair our device with Home Assistant via MQTT. I will show here how you can easily upload the batch to the BL602 using a simple USB to UART converter,... [Read more]

Hi. I made a power supply, nothing innovative because it is a good construction that has been going through the internet for over a dozen years. With this construction, I put more emphasis on the design (at least I think so). Despite quite a long thought process, this power supply... [Read more]

Hello. I would like to present here a short teardown and OpenBeken configuration guide for LSPA9 power measurement socket. LSPA9 comes in various versions, but in this case it's based on CB2S (BK7231N) module and BL0942 energy metering chip with UART interface. I will show here step... [Read more]

Hi I present a partial teardown and functional modification OBD2 VGATE interface with a WiFi module instead of BT. This interface I bought a few months ago and used in conjunction with the android Head Unit in the car with the hybrid assistant app. By default, the interface works... [Read more]

Hello my dear. I invite you to a practical test of the cheapest solar charger with USB 5V output. This charger comes in the form of a single 26cm x 14cm panel and has an integrated converter with (if possible) a stable 5V output. In this topic, I will check whether in sunny, March... [Read more]

Nearly twelve years have already passed since the introduction of digital terrestrial television in Poland ( Digital Video Broadcasting - Terrestrial ) and a newer version, DVB-T2, is already being launched. The very introduction of DVB-T was a kind of revolution, and the complete... [Read more]

I will present here a three-color LED strip, offering control via WiFi and a remote control, model MWIR-RGB/SMD2835. I will test its compatibility with the Tuya and Magic Home applications, analyze its interior (including the 12V power supply from the set) and try to program the WiFi... [Read more]

Hello, my dears. Here I will present the theory and practice of implementing TuyaMCU protocol support. TuyaMCU is a UART-based protocol used to communicate the WiFi module with the main microcontroller of the Tuya device. This protocol is used in many IoT products, including: in dimmers,... [Read more]

Hello all, it's time to flash another BK7231N device with my Tasmota clone and pair it with my Home Assistant. This time it will be a smart LED bulb by Tuya, offering a wide range of colors, RGB and cold and warm white. 12W, E27. I will start with a teardown, then I will show how... [Read more]

Another Nixie clock built by me, this time using ESP8266. The project is based on a schematic with software found somewhere in Russian forums. The lamps in the clock are the Z573M. For control, the NodeMCU v3 module, 74hc595 shift registers and k155id1 BCD decoders were used. The... [Read more]

I will present here the interior of the garden "smart" two-channel Tuya / WiFi transmitter model CCWFIO232PK, which I received as a donation from the user @strigon from Canada to run my firmware for microcontrollers from the Beken family. The topic will be divided into two parts -... [Read more]

Here I will present the short teardown and OpenBK7231 programming procedure for another Tuya relay, which this time turned out to have a rather unusual CB2S module inside, based on the BK7231N chip (not to be confused with the BK7231T). The programming procedure will be presented... [Read more]