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Hong Kong, Jackson
1 Level
693 Review
24 Karma

Review on Smraza Raspberry Touchscreen Heatsinks Raspbian by Corey Owens

Revainrating 5 out of 5

Fantastically clear screen; Solid construction

Pros: - Incredible viewing angles on the LCD screen both vertically and horizontally (clearly IPS) - Crisp, clean, bright display - Hardware push button switches for brightness adjustment and on/off display - Can easily lay the assembled case on its side to use as a small monitor with keyboard and mouse. Clear assembly instructions. Detailed instructions to install Smraza Raspbian OS assembly. Without installing the included low-profile heatsinks, the fan keeps the system cool. good glue; it took a bit of effort to remove them without damaging the Raspberry Pi) - there is no push button power supply included like in their fan cases. d to try out their 4 inch touch screen. Assembling the case was a bit more difficult than I expected, but Smraza includes URLs to YouTube videos demonstrating the assembly process when printed instructions with pictures don't suffice (and they are). While the included screwdriver was good, I would have preferred my Raspberry Pi to boot up with the touchscreen if Smraza had included a stylus instead of a screwdriver. Edit: The advertised stylus was included, but I didn't see it when I first looked at the packaging. This is a white pen tightly packed in white foam. This is my fourth Smraza product and I'm not sure if I'm really good at peeling protective layers off their acrylic materials or if Smraza makes it easy. But it was the easiest time when I had to remove the protective layers. This touchscreen bothers me the most because I had to install a new operating system. I was planning to install this on a Raspberry Pi 4 that was already being used for my home automation services. It would be nice to have a touchscreen directly on the device that I could use instead of having to use my smartphone all the time. That being said, I was a bit nervous that the link to the Raspbian build wasn't hosted by the Raspberry Pi organization. In this day and age of increasing privacy and cybersecurity issues, installing an operating system that loads from a mega URL is really scary. However, as a senior engineer at a cybersecurity startup, I can also sympathize with the need for rapid implementation, and waiting for the necessary changes to be incorporated into the main Raspbian distribution (now called the Raspberry Pi OS) can be devastating when not impossible. After installing the (huge; 7.7GB) Raspbian image, my Raspberry Pi booted with no problems. No further settings need to be made. Whatever software drivers or configuration settings are required for this touchscreen, they are all installed and working at first boot. Even with the screen protector on (I forgot to remove it), the vertical and horizontal viewing angles were phenomenal (clearly an IPS panel) and everything was crystal clear. The touchscreen seems to require a little more pressure to register touches than I'm used to, but once you figure out that you have to be a little firm when pressing, you're good to go. I highly recommend using the included stylus on a screen this small, but your fingertips will work even if the UI is designed for it (i.e. it has big buttons). The Raspberry Pi is great, but stays stable at 45°C when idling. Under heavy load (apt-get upgrade) it went up to 50°C once, otherwise stayed below that. I was able to get the temperature up to 56°C using glxgears, but Raspberry Pi SoCs are rated for up to 85°C, well below that maximum. And all with no low profile heatsinks installed, I can only assume cooling will improve with heatsinks installed. After inspecting the packaging, I found that the white stylus was packed tightly in white packaging foam. So if you order this and think you haven't received it, double check the packaging!

Pros
  • Beautiful looks
Cons
  • Some flaws