Tag: remote control

RIGOL DM858 Multimeter Review | Voltlog #485

The Rigol DM858 is a high-quality multimeter from a reputable manufacturer, boasting a 7-inch touchscreen display and a sleek form factor reminiscent of their oscilloscope line. With a wide range of measurement capabilities, including 10A current, 10mF capacitance, and 0.03% accuracy on DC voltage, it certainly packs a punch in terms of specifications.

One of the standout features is the web view and control interface, allowing you to access and control the multimeter remotely from any computer or mobile device connected to your local network. This level of convenience is a welcome addition to any modern lab setup. However, the DM858 is not without its flaws.

During testing, a concerning auto-ranging bug was discovered, where the meter fails to detect the need to switch to a higher voltage range, potentially leading to incorrect readings and even internal damage. Rigol has been notified, and a firmware fix is hopefully on the way. Another disappointment is the lack of a built-in data logging feature, which seems counterintuitive for a multimeter in this price range.

While the user manual mentions data logging capabilities, the implementation appears incomplete and unintuitive. Other minor gripes include the inability to use math functions in auto-range mode, the lack of a thermocouple probe or USB cable in the package, and the recommended software being outdated and incompatible with modern Windows versions.

Despite these drawbacks, the DM858 remains a compelling option for those seeking a multimeter with a large touchscreen display and remote control capabilities. Its unique form factor may appeal to those with limited bench space or a preference for monitor-mounted instruments. Priced at around $500 (or €440 in the EU), the DM858 competes with alternatives like the UNI-T UT8805E, which offers better specifications at a lower cost but lacks the touchscreen and web control features.

Ultimately, the decision to purchase the Rigol DM858 will depend on your specific needs and priorities. If the touchscreen, remote control, and unique form factor outweigh the concerns raised in this review, it could be a worthwhile investment for your workbench.

Is the UNI-T UDP3305S the BEST Programmable Power Supply? Find Out! | Voltlog #478

Are you tired of juggling multiple power supplies on your workbench? The UNI-T UDP3305S could be the solution you’ve been waiting for. This programmable DC power supply unit combines four independent channels into one sleek and powerful package, making your life easier and more productive. With three independently programmable outputs (two at 0-30V 5A and one at 0-6V 3A) and a fixed 5V 2A USB output, the UDP3305S offers a total combined power output of 348W.

Its 1mV/1mA resolution and low ripple voltage of less than 350uV (measured at 1MHz bandwidth) make it suitable for powering even the most sensitive analog circuits. One of the standout features of this unit is its ability to internally switch channels 1 and 2 to series or parallel mode, eliminating the need for external wiring and separate adjustments.

Need more than 30V? Switch to series mode for up to 60V at 5A. Need more current? Parallel mode delivers 30V at 10A. The 4.3-inch TFT display provides a clear and intuitive graphical user interface, allowing you to monitor and adjust settings with ease. The unit also offers advanced features like waveform viewing, programmable sequences, monitoring, triggering, and data logging.

With a robust build quality, rubber corner protection, and a carry handle, the UDP3305S is designed for the demanding workbench environment. Connectivity options include USB, Ethernet, RS232, and digital I/O, enabling remote control and integration into automated test setups. While the included Windows software could be more polished, the instrument itself excels in usability and performance.

Compared to alternatives from Rigol, Siglent, and others, the UNI-T UDP3305S offers more features at a lower cost, making it an attractive choice for professionals and hobbyists alike.

Voltlog #224 – InTheMail

Welcome to a new InTheMail, the series that will touch both your passion for electronics and your bank account at the same time. We’re gonna start with this small and modern looking remote control. I actually like how this feels, even though the cost was just $3 shipped it just feels well built, the quality of the plastic is nice, the buttons have a nice click and it comes pre-loaded with batteries.

You can then use this remote control to open the garage door or whatever you like to control. But do note that this will not work with all 433MHz remotes, because some remote controls employ some form of coding, to protect the signal from being easily cloned. Take for example the automotive key fobs, some of those work on 433MHz but you won’t be able to clone them with this remote. Nonetheless, useful for creating a copy of your garage door remote control or even better, you could hack this remove and integrate it into your car dash console on some of those unused button slots. That would be a cool project.

Voltlog #100 – InTheMail

Welcome to a new voltlog, today we are taking a look at my electronics mailbag items and it’s episode number 100 so I would like to take the time to thank you guys for your support. Every view like & share I get from you motivates me to continue producing these videos.

Here are links for all the items shown in the video in their order of appearance: