Tag: Tasmota

InTheMail | Voltlog #476

Gear up, electronics enthusiasts! In this installment of InTheMail, we’re diving deep into a treasure trove of tech goodies that are sure to elevate your workshop game. From cutting-edge ESP32-C3 development boards to sleek braided heat shrink tubing, we’ve got you covered. First up, we’re exploring the world of the ESP32-C3, a powerful microcontroller based on the RISC-V architecture.

We’ve got not one, but three dev boards to showcase, each with its unique features and form factors. Whether you need a compact solution or a board packed with extras like USB-C ports and status LEDs, we’ve got you covered. But that’s not all! We’re also taking a closer look at braided heat shrink cable sleeving, a professional-grade solution for your wiring projects.

While it comes with a few caveats, like a higher price tag and stiffer finish, the braided look is undeniably sleek and polished. Continuing our exploration, we stumble upon a rather intriguing (and slightly concerning) product – a pet positioning GPS locator with a built-in microphone. While its tracking capabilities are questionable, the ability to listen in on conversations raises some ethical concerns.

We’ll leave it up to you to decide how to utilize this technology responsibly. Moving on to more practical solutions, we’ve got our hands on a nifty hand wave sensor and a touch sensor designed for furniture integration. These clever devices allow you to control lighting and other low-voltage DC applications with a simple wave or touch, adding a touch of convenience and modernity to your projects.

And speaking of lighting, we’re diving into the world of LED tape controllers, specifically one powered by an ESP8266 module. While it may not be the ideal choice for driving analog LED tapes due to potential flickering issues, it’s a fantastic option for digital LED tapes, offering seamless integration with popular open-source firmware platforms like Tasmota, WLED, and ESPHome.

But wait, there’s more! We’re also exploring a budget-friendly Apple Watch charger clone and a unique stainless steel scrub cleaner for those who value a sparkling workshop (and cast iron pans!).

Underfloor Heating Valve Actuator Board revD | Voltlog #466

In this captivating video, Voltlog unveils the latest iteration of their revolutionary ESP32-based Valve Actuator project – Revision D. Designed to streamline manufacturing and offer improved functionality, this enhanced version is a testament to the project’s ongoing evolution. Originally conceived as an open-source solution for controlling underfloor heating systems, the Valve Actuator project has gained a loyal following due to its compatibility with popular platforms like Tasmota, ESPHome, and Home Assistant.

With over a couple of hundred units already in operation, the RevD promises to further elevate the user experience and simplify assembly. One of the most notable updates in this revision is the ability to power the valves with a separate AC voltage, such as 24V AC. This feature caters to users with pre-existing underfloor heating systems, providing greater flexibility and compatibility.

Additionally, Voltlog has optimized the PCB design by transitioning from through-hole components to surface-mount technology (SMT) wherever possible, improving manufacturability and reducing potential errors during assembly. The RevD also introduces an innovative LED control feature, allowing users to turn the output status LEDs on or off via GPIO16.

This not only conserves power but also enhances the device’s versatility, making it suitable for discreet installations where visible LEDs are undesirable. Voltlog’s commitment to quality is evident in their collaboration with PCBWay.com, the official provider of printed circuit boards for the channel.

The limited-edition first batch of RevD boards boasts a stunning red solder mask with gold-plated ENIG finish, showcasing exceptional craftsmanship and attention to detail.

How To Flash Shelly Relays With Tasmota Or ESPHome | Voltlog #404

Welcome to a new Voltlog, in this video I’m going to show how to flash your Shelly relay with Tasmota or ESPHome, the easy way, using the VoltLink USB to serial converter. What is a Shelly relay you might ask? Well, if you are into home automation, a shelly relay is a wifi connected smart relay, built into a very compact form factor in order to fit inside electrical junction boxes like behind wall switches or wall sockets.

revC Tasmota ESP32 Floor Heating Valve Controller | Voltlog 397

Welcome to a new Voltlog, today I’m gonna be showing you revC for the ESP32 based thermostat valve controller, we’re going to do some thermal measurements using my InfraRed PCB inspection thermal camera, talk about resistor power dissipation a little bit and I’m also going to be talking about the future of this project, some changes that I might do in a future revision and ask your feedback in the comments below about these.

As mentioned in Voltlog #395, where I showed revB, I wanted to do this rather small change and release revC just to see if it was possible to improve the thermals of the board, in particular how warm these current limiting resistor networks get during operation.

revB Tasmota ESP32 Floor Heating Valve Controller | Voltlog 395

Welcome to a new Voltlog, today I’m gonna be showing you revB for the ESP32 based thermostat valve controller, this is based on revA that I first showed in Voltog #383. So a few words about this board, just in case you haven’t seen Voltlog #383. It’s based on an ESP32 and I designed it so that it’s compatible with the open source firmware called TASMOTA and that allows us to control it via MQTT from homeassistant. 

We have 10 individually switched triacs, each capable of up to 900mA or 1.2A depending on the version of the triac that it’s equipped with and a few expansion capabilities via I2C, 1Wire and some spare GPIOs. Everything was designed to fit inside one of these inexpensive, DIN rail enclosures and the whole purpose of this is to allow smart control of electrical thermostat actuators.

In my case, I use these 240V rated electrical thermostat actuators to control zone valves for my floor heating system. but if you would like to know more, I recommend you also watch Voltlog #383.

So why did we need revB? Well I’ll tell you all about the changes that happened in revB and I’m gonna start with this odd shape that you see around the ESP32 module, I removed the PCB from under the antenna section of the wifi module and although the improvement is probably marginal, in theory at least, it helps to keep the antenna clear of other objects.

Tasmota ESP32 Floor Heating Valve Controller | Voltlog 383

Welcome to a new project video, today I’m gonna be presenting this 10 channel valve actuator controller which I built with the purpose of individually controlling the water circuits on my floor heating system. The best part is that this is based on an ESP32, it’s TASMOTA compatible so it should be very easy for me to integrate this into my HomeAssistant smart home system.

So like I mentioned, the need for such a valve actuator circuit started when I installed floor heating into my apartment and if you ask why i didn’t use one of the commercially available options: I don’t like them, they’re expensive and they typically only work with their closed source ecosystem, I wanted something that runs open-source so I can control and customize various aspects.

I have a total of 9 circuits and these circuits have different lengths and the rooms have different sizes so putting the same volume of water through all circuits is going to result in uneven heating. This issue can be mitigated by tuning the individual flow valves on the intake of each circuit but that setting seems to vary with the pressure it gets from the pump and doesn’t allow a fine granular control over the temperature of that room which is what I want to achieve.