Articles

Thermal efficiency is a critical factor in the reliability of electronic systems. Overheating of components can cause irreparable damage, compromise system stability and shorten component life. For this reason, the selection of an appropriate heatsink is critical to ensure that electronic... [Read more]

At some point, I decided that using the same equipment by two people is neither a good nor practical idea. There was a need to make a second soldering station (for my son). The purchase was out of the question for ambitious reasons, I did not want to build something more complicated... [Read more]

Hello, today a short topic. I will present here another CCT lamp, this time with a rather hard-to-reach WiFi module, the firmware change of which requires desoldering the 2x5 pin connector. I will also show here my method of desoldering this connector. After changing the firmware,... [Read more]

In this video we'll show you how to change the firmware of Tuya smart RGBCW ceiling lamp. The following guide will include desoldering and soldering back procedure for CB2S (BK7231N module), which we will program outside the circuit with our own 3.3V power supply and USB to TTL converter.... [Read more]

Hello, I will present here the inside of the product known on the web as based on ESP8266, but in newer versions based on the BK7231T module, more precisely on WB2L. The lamp this time with a GU10 standard connector. It will also show here the procedure for changing its firmware.... [Read more]

Surprised by the damage to the supercapacitor, I described the repair of the fault in the topic: Damage to the EDLC supercapacitor (RTC hold). Reading the answers, I learned from @bestler that this is a standard fault and I overestimated the durability of supercapacitors supporting... [Read more]

In a static regime, MOSFETs provide maximum performance and their power efficiency is quite high. When dynamically driven, however, their efficiency can be compromised and power losses inevitably increase. LTspice, and in general any software implementation of SPICE, does not have... [Read more]

Hello, today I will show a teardown of an IoT lamp that is not yet supported by our open source firmware . What kind of WiFi module will be inside? Let`s see. The device from this topic is from the same shop as usual, Allegro, but this time it was given to me by our user so that I... [Read more]

printed circuit board Preparation. Soldering connect to TTL. Additional power is not required, we take with TTL 3.3 volts. buy TTL on Aliexpress To enter the BL602 into programming mode, it is necessary to connect the boot output through a 10k resistor to the positive before power... [Read more]

"Almost" acoustics ;) No miracles, a VU indicator for the amplifier. Project from Changes in the schematic include power supply from the power amplifier through two series regulators, and input level adjustment on the PRs. My contribution is the plates making it a module for the front... [Read more]

Hello! I recently came across this board while looking to convert an Aubess/Tuya relay to OpenBeken... And I was wondering what was making my smart lights tchuutchuu! So please join me in this teardown and modding journey :) I bought these lights back in 2019 from Amazon France .... [Read more]

Hi, here's a quick teardown and a pinout for Nedis WIFILS50CRGBW led strips. It uses a BK7231T WB3S chip. Product official name: Nedis SmartLife LED Strip | Wi-Fi | Cool White / RGB / Warm White Product code: WIFILS50CRGBW Product EAN: 5412810303106 Product Page: Link Teardown Just... [Read more]

The following guide shows how to install ioBroker along with Sonoff Plugin and then how to pair devices by MQTT with this plugin. The presented pairing method works with both Tasmota and OpenBeken (thanks to OpenBeken compatibility with Tasmota MQTT standard). ioBroker is able to... [Read more]

The global automotive market has witnessed a rapid demand surge for electric vehicles (EVs) over the past two years, and the market is expected to experience continuous double-digit growth over the next five years. However, to become a viable alternative to the currently dominant... [Read more]

Hi everyone. I would like to add a teardow of a generic tuya smartplug based on a wb2s. I have bought this device some time ago from aliexpress: It came with tuya 1.3.5 and I installed OpenBeken using tuya cutter for a BK7231T and selected the Generic Tuya NAS WR07W 16A smart plug.... [Read more]

The UltraPro WFD4001 is a 120V 3-way Wifi smart switch under the UltraPro brand of Jasco. It uses a WB3S Tuya chip, which can be exploited over the air using Tuya-Cloudcutter. Purchase link: Amazon Manufacturer Instructions: UltraPro WFD 4001 Alternate Wiring: Alternate Wiring Product... [Read more]

The battery management system (BMS) is an essential component of any electric vehicle, tasked with monitoring the battery’s state of charge (SOC) and state of health (SOH). To operate reliably and over a long period, lithium-ion batteries must be used with particular care: They... [Read more]

Box and content: Components: - PCB: K225P2-RGB v1.4 ( only info I found online ) - RGB Mosfet: SLS3400 (marking A09T) Pinout: Pin Mode Value Function P6 (PWM0) PWM 1 Green LED P7 (PWM1) PWM 0 Red LED P8 (PWM2) PWM 2 Blue LED P20 (N/A) IRRecv - IR Receiver P26 (PWM5) Btn - Button [Read more]

Module name: Moes Smart Switch Module MS-104 Protocol: WiFi 2,4GHz Input Voltage: 90 - 250V AC 50/60Hz Max Current: 10A Wifi module: Tuya CB2S (BK7231N) datasheet This is the 1 gang vesion of the module there is also a 2 gang version available (obviously with the same PCB based on... [Read more]

Here's a short video guide showing the automatic Home Assistant Discovery process for BK7231 (T and N), BL602, W800/W801, W600/W601 and XR809 devices in OpenBeken firmware. Automatic Discovery allows you to easily pair your device with Home Assistant, without having to write any YAML... [Read more]

Photos: Bought the device from Temu . The product image shows a model number of IRC02. The manual in box was for SRW-001, but the schematic looks like a different product. Although the chassis seems to be the same as Aubess WiFi Smart IR Controller , the internals are quite different.... [Read more]

Hi! I came here to post my teardown of the Topgreener TGWF115PQM. They were on sale recently for $14.99 for a four pack but now they're back up to $29.99. The plug itself was pretty easy to get open, I just had to break the glue holding the tabs at these 4 spots and then pry it open... [Read more]

Last summer I bought a socket in the action store: Now is the time to disconnect from the cloud. It took a while, but I found descriptions of how to do it without disassembling the device and soldering the wires. I took advantage of and I used the existing configuration for the LSC... [Read more]

Hi, Like many perhaps I bought a Magic home controller expecting to flash Tasmota onto it and go from there... Turns out there is a different chip in side, and there you go down the rabbit hole. Thanks to someone with, I guess, a lot of perseverance and this beautiful community I... [Read more]

BK7231T/BK7231N is a popular WiFi & Bluetooth SoC used widely in Tuya Smart products. BK7231 can be found in smart sockets, smart LED bulbs, smart switches, etc. BK7231 usually comes in form of modules which are pin to pin compatible with ESP modules (TYWE2S, TYWE3S, ESP12, etc..).... [Read more]

This is a pretty straight forward LED Lighting kit, with a very simple tear down. It's best feature is support for RGB and Tunable White ( 2000K to 5000 K ). The internal part number is 50323. The module is within a plastic box attached to the LED, so you just need to undo one screw... [Read more]

wenkman - 20 Jan 2023 00:35 This is a short teardown and flashing guide for ANTELA ceiling lamp PLAFONIERA 20W Wenkman - 20.01.2023 Brand: Immax Model: ‎AN-EU-CL260-WIFILIC-RGBCW-TD-01 Chip: BK7231N LED Driver: SM2235EGH Shop: Amazon I searched Amazon for a ceiling light made... [Read more]

Here's another video guide showing how to regain your privacy and free the Chinese BK7231 WiFi IoT device from the cloud, so it can be paired with Home Assistant, freely scripted and adjusted to your own needs. This time we'll be programming TreatLife Intertek switch, which was sent... [Read more]

Hello, today a gadget similar to the one discussed in the past ZN268131 , but distinguished by the fact that the buttons (relays) support two and additionally have voltage, current and power measurement based on the BL0942 system. I will present here the inside of this gadget, the... [Read more]

This a $5.2 bulb I got from Amazon.sa Unfortunately, this bulb seems to be a no name brand but it does use the Surplife APP. Sorry I don't have further information about it. I was hoping to get BK7231T or BK7231N just so I can try Tuya Cloudcutter but this bulb came with a BL602 module... [Read more]