I’ve been reviewing a few IP cameras with built-in AI features with Vacom Cam, Reolink RLC-810A, and Annke CZ400 AI security camera which had by far the most advanced features going beyond human detection with luggage monitoring, line crossing-detection, and many more. Today, I’ve received another model with basic human detection. But Foscam SPC security camera also happens to come with a motion-activated spotlight, and it is the first camera I’ve ever received with support for dual-band WiFi meaning 2.4GHz or 5 GHz WiFi can be used as needed. In the first part of the review, I’ll go through the specs, do an unboxing, and go through teardown photos to check the internals. Foscam SPC key features and specifications Some of the highlights listed in the user manual and package: Camera 4MP camera up to 2560×1440 resolution @ 25 fps, 156° view of view (diagonal) HDR support 2x white LED […]
Laser focusing on Laser Master 2 Pro and optimal line spacing
Karl Here. I am going to break up the review process for the Ortur Laser Master 2 Pro (LM2Pro) into smaller bite-size bits instead of one long review. I can get into more details and share what I learned. You can check out the initial unboxing and initial impressions in Ortur Laser Master 2 Pro laser engraver – First impressions. Let’s start first with focusing the laser. Focusing the laser I have a problem, I don’t feel like I can reliably focus the same way every time so I created a little focusing contraption. I got inspiration from my CNC machine and Z probe. It is just a simple jig that completes a circuit when the lens touches the end of the M3 screw to illuminate the led. I feel like I can have better repeatability. I’ll step through my process of calibrating it. First, I focused the laser with […]
A customer’s review of NextPCB PCB manufacturing service (Sponsored)
This article is based on the feedback from “Fix Until Broken”, one of NextPCB customers who details his experience with their PCB manufacturing service, including the ordering process, pricing, customer service, available options, and quality of the boards ordered. Ordering with NextPCB Ordering is a very simple process. First, check your design rules just like you would with any board manufacturer. If you want to check it yourself or set it into your design rules with your EDA/CAD, you can find PCB capabilities on their website. Alternatively, NextPCB also offers a free program to check your Gerber files for free. NextDFM is great for checking Gerber files. This is especially true when using files from an open-source design that you got from Github. After checking your design rules you can start the ordering process. For the free trial just make sure you are using 1-2 layers, ordering no more than […]
RasPad 3 Review – Part 2: A Raspberry Pi 4 mini PC with integrated display
I started RasPad 3 review last week with an unboxing of the tablet shell for Raspberry Pi 4, together with assembly instructions, and a first boot after flashing Raspad OS to the system. In the first part of the review, I mentioned that I’d probably focus the remainder of the review on Ezblock Studio visual programming IDE, as the rest of the software is almost the same as using a standard Raspberry Pi 4, the other difference being the touchscreen-friendly RasPad launcher. But Sunfounder explained to me it would be hard to check out Ezblock as it’s designed to control robots and other hardware platforms, and requires an extra HAT (see Kickstarter campaign) to allow the Ezblock APP to connect through Bluetooth (it cannot be directly linked to Raspberry Pi through the built-in Bluetooth). Here’s an example of a robot that is compatible with Ezblock Studio: Picar-X. Finally, I was […]
GMK NucBox Review – A palm-sized Windows 10 mini PC
GMK released their diminutive mini PC called the NucBox a while ago however they have recently updated the BOM with a new fan and WiFi module together with changing their logo from GMK to GMK TEC. GMK sent the new NucBox for review and the results from various testing are detailed below. Hardware Overview The NucBox physically consists of a 62 x 62 x 42mm (2.44 x 2.44 x 1.65 inches) rectangular metal case with a plastic top and base plate. As an actively cooled mini PC, it uses Intel’s 14 nm J4125 Gemini Lake Refresh processor which is a quad-core 4-thread 2.00 GHz processor boosting to 2.70 GHz with Intel’s UHD Graphics 600. The front has just the power button whilst the rear includes two USB 3.0 ports, an HDMI port, and a Type-C USB port for power. The left side has a microSD card slot and a headphone […]
RasPad 3 Review – Part 1: Raspberry Pi 4 “tablet” specs, unboxing and assembly
RasPad tablet kit for Raspberry Pi 3B+ and other SBC’s was introduced in 2018, but Sunfounder has recently introduced an update, RasPad 3 that supports the more powerful Raspberry Pi 4 SBC. After seeing my review of CrowPi2 Raspberry Pi 4 education laptop, the company asked me whether I’d be interested in reviewing Raspad 3 as well. So here we are, and I’ve received a sample of the tablet kit. As usual, I’ll do a two-part review, with unboxing and assembly of the kit. Since I previously missed the RasPad 3 announcement, I’ll start by listing some of the specifications. RasPad 3 specifications Compatible board – Raspberry Pi 4B with Broadcom BCM2711 quad-core Cortex-A72 processor, up to 8G RAM Storage – MicroSD card socket Display – 10.1-inch touchscreen IPS display with 1280×800 resolution, 10-point touch Video Output – Full-size HDMI output Audio – 3.5 mm headphone jack, stereo speaker Connectivity […]
GMK NucBox2 Review – Windows 10, Unraid OS on a Coffee Lake mini PC
Karl here. Today we are going to look at a mini PC. It is by GMK. GMK’s first foray looks to be the NucBox, a super tiny mini pc. I would call the NucBox2 its older, bigger, more capable brother. What stood out to me was the M.2 4x NVMe slot. I don’t anticipate a superfast SSD to come with the NucBox2 but we will see. The NucBox2 only had one 8 GB stick of memory and I had an extra stick laying around so I installed it to get dual-channel support. I think they are doing this mini PC a disservice using memory in single-channel mode. A quick Google search shows an 8GB stick is about $50 and I would highly recommend this upgrade. Notable Specs Processor – Intel Core i5-8259U 4-core/8-thread Coffee Lake processor 802.11 AC WiFI M.2 NVMe 256 GB SSD (Netac) 8GB memory single-channel Gig Ethernet […]
Ortur Laser Master 2 Pro laser engraver – First impressions
Hey Karl here. Today I am here to share my initial experiences with the Ortur Laser Master 2 Pro laser engraver. That is a mouth full so I will refer to it as the LM2Pro for the remainder. The LM2Pro is the successor to the Ortur Laser Master 2. I have only had 1 experience with a diode laser and that was quite a long time ago and a lot has changed in the desktop laser department. I have used the LM2Pro for almost 2 weeks and I am blown away by what I have been able to achieve in such little time. I don’t know if it is better software or the machine itself. Probably a mixture of both. There are 3 different models with different power lasers. The 20W version was sent for review. It is dishonest to call this a 20w laser. I am not sure which […]