Monthly Archives: December 2020

R&S NGM202 Update: F/W V3.034 Graphical View, SCPI READ Command & More

Posted on December 31, 2020 by lui_gough

If you’ve followed along with this blog, you probably have seen how hard I’ve worked my Rohde & Schwarz NGM202 review unit. It’s been a big part of many product reviews of batteries, chargers and the likes – rarely ever … Continue reading →

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Review: ShockLi IMR 30A 3.7V/5500mAh Unprotected 26650 Li-Ion Battery

Posted on December 30, 2020 by lui_gough

Readers have probably noticed that I’ve recently been on a bit of a flashlight and lithium-ion battery “binge”. I guess that can’t be helped, since I quite like using flashlights for added general purpose lighting in my room (where it … Continue reading →

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Project: SMD Practice Kits Pt. 2 (1206/0805/0603/0402/SOP/SOT, HKT002 NE555+CD4017)

Posted on December 30, 2020 by lui_gough

After starting on some SMD Practice Kits yesterday, I had two remaining in the pile. Rather than leave them unfinished, I decided to try tackling them today so that I can finally say that I’m done. A Sense of Deja … Continue reading →

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Project: SMD Practice Kits (1206/0805/0603/SOP16/SOT-23, TJ-56-242 NE555+CD4017)

Posted on December 29, 2020 by lui_gough

Growing up with Dick Smith Funway 2 kits, I’ve honed my skills on through-hole technology boards. But the days of through-hole technology are well and truly numbered, as many ICs either cost more or don’t come in DIP packages and … Continue reading →

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Random: Farewell 2020 at Long Last? Introspection with a Side of Random

Posted on December 27, 2020 by lui_gough

It’s been ages since I’ve posted a random post – which is no surprise since I usually fill them up with “random” content which I record on my day to day outings. But this year has been completely different – … Continue reading →

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Quick Review: Alienware AW510M 16,000dpi RGB Gaming Mouse

Posted on December 26, 2020 by lui_gough

It’s Christmas eve and Australia Post leaves this package for me on the doorstep. What could it be? I don’t remember ordering anything … Unboxing Cutting through the black plastic and emptying out the insides, it’s a nice surprise from … Continue reading →

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Quick Review: Xiaomi Youpin NexTool Cree XHP50.2 2000lm 6500K Flashlight

Posted on December 24, 2020 by lui_gough

It’s coming up to Christmas, so I was on the lookout for a little treat for myself. While I’m not a flash-a-holic (I keep telling myself that), I couldn’t resist buying a Xiaomi Youpin NexTool Flashlight when I saw it … Continue reading →

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Project: TSP-Scripted Battery Simulation for Keithley 2450 SourceMeter

Posted on December 13, 2020 by lui_gough

As one of the lucky recipients of a Keithley 2450 SourceMeter as part of the element14 RoadTest program, I had the opportunity to review this rather precise and versatile source-measurement unit. Unfortunately, during the review process, an issue was found … Continue reading →

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R&S NGM202: Developing a Li-Ion Battery Model with Multi-Level Current Waveform

Posted on December 12, 2020 by lui_gough

In a previous posting, I looked at how I could use the Rohde & Schwarz NGM202 Two-Quadrant Power Supply to test and generate a battery model for use with the Battery Simulation option. In that previous posting, I covered some … Continue reading →

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Review: Keeppower IMR26650 3.7V 5500mAh Unprotected Li-Ion Battery (UH2655)

Posted on December 11, 2020 by lui_gough

It’s the season of discounts and cashbacks, so not wanting to waste a good opportunity, I decided to make a few more purchases to keep myself occupied. Despite the relative unpopularity of the 26650 size (as the 21700 cells offer … Continue reading →

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Review: Bakeey 116 Pro (Teng Jinda/LeFun Health) Smartwatch – Step, Sleep, HR, BP, SPO2 for $15?

Posted on December 6, 2020 by lui_gough

It’s been a while since I reviewed anything wearable. The main reason is that I’ve been happy with my Mi Band 2 with an aftermarket metal strap that I’ve been using since 2017, with one notable exception – the OLED … Continue reading →

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Quick Review: (Xiaomi) Atuman DUKA LS-1 USB Rechargeable Laser Rangefinder

Posted on December 5, 2020 by lui_gough

Perusing the recent Black Friday sales online, I came across a discounted listing for a Xiaomi/Atuman DUKA LS-1 USB rechargeable laser rangefinder for under AU$15 delivered. Having already owned a Bosch PLR 30 C (which I didn’t get around to … Continue reading →

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Notes: Heatwave Effects on Local AC Mains Voltage

Posted on December 5, 2020 by lui_gough

Last weekend (28th/29th November 2020) was a rather extraordinary one for me. Summer hadn’t officially begun yet, but yet a heatwave was on the cards. Two days of 40+ degrees Celsius temperatures were forecast for the west, with a minimum … Continue reading →

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Review, Teardown: HoldPeak HP-605C 6/40A AC/DC Clamp Adapter

Posted on December 4, 2020 by lui_gough

Current measurements are, in general, a pain. Most of the time you have to insert the meter in series with the circuit that is being measured, meaning you’re going to have to interrupt the circuit somewhere, cutting power to the … Continue reading →

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Note: Canton Power DDO603SA Buck Boost Module uses a Boost Converter IC?

Posted on December 2, 2020 by lui_gough

Just this morning, I received a comment from Franc, a long-time reader, on my post about the dubious Canton Power DDO603SA 3.3V Buck-Boost Converter Module: The link to the ME2149F datasheet is dead. Here is another one: https://datasheet.lcsc.com/szlcsc/1810081413_MICRONE-Nanjing-Micro-One-Elec-ME2149FSG_C236784.pdf The spec … Continue reading →

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