![]() ![]() ![]() I needed to make some minor modifications to stressberry to meet my needs. This plotting function can plot multiple results set on a single graph and output an image. Data is collected in a yaml file which can later be passed on to the plotting function. Each test has an idle period at the start and end and it runs the standard stress utility to apply load. ![]() This tool waits for temperatures to stabilise before starting the test. In order to assist with data collection and ultimately plotting, I found the Stressberry project by Nico Schlömer. It can run on multiple cores and though not used here can be expanded to stress other components. I opted to use the standard Linux tool stress which calculates the square root of a random number to stress the CPU. I wanted to measure core CPU speed to detect for thermal throttling.I wanted to be able to vary the load, not just saturate all 4 cores.I wanted a test that I could run for a long duration, to test ensure metal cases didn’t reach a heat saturation point.I decided to keep it simple and focus purely on CPU load at least for now. It’s now time to look at how these different case designs perform under load conditions. Impact of various case designs on WiFi Performance of the Raspberry Pi 4.Power consumption and beta driver fixes.Temperatures of the Raspberry Pi 4 when idle in various enclosures.Initial concerns with the Raspberry Pi 4 temperature in the official Raspberry Pi 4 case.This will help a lot with passive cooling.So far I’ve examined the following topics relating to the Raspberry Pi 4, especially the issues with the temperature: I believe it needs a second iteration with holes in the backplate - as the old Pi 3 case, but also some holes in the top of the aluminium body ( in the power area and in the memory/controllers area ) and for cover some aluminium mesh - like the one used in some radio receivers on the speakers. By removing the plastic top the temperature will fall about 2-3 degrees very fast - more useful surface and the holes who keep the cover in place now can evacuate some hot air from inside - there is no ventilation inside - the internal surface also act as a radiator heating the air inside - which is not good. The entire case act as a cooler, but due to design only the external laterals are useful. Luckily there is now a new Pi firmware who help it cooling. They even removed the backplate holes used for ventilation. They just took the old case and redesigned the holes in it so it can fit the 4. Even if they say this was thermally designed for Pi 4, it's not. With high temperature, this may happen faster.Ģ. Also all products I had with this kind of "premium" surface got it degraded in 2-3 years - it became some kind of rubber adhesive getting dirty and bad looking. Looks very good until you touch it - it absorb the grease on your fingers and it's hard to remove it. The plastic elements are covered with a soft touch surface. Well, yes, this is probably the best looking case for a Pi.ġ. We know you will love the attention to detail we put in throughout the case. GPIO pins are accessible through the slot on the bottom of the case and there is no need for disassembly to get to the SD card. In addition to the built in heat sink, small ventilation slots on the bottom help keep the Raspberry Pi cool. We included rubber feet to raise the enclosure so it just hovers underneath your television. It only takes seconds to drop your Raspberry Pi into it’s amazing new home and show it off on your counter top. Supplied with the case is a thermal pad and 4 screws for the simplest Raspberry Pi case assembly on the market. We wanted to ensure we didn’t sacrifice form over function, so we used the aluminum housing of the case to provide a built in heat sink. This is the first affordable Raspberry Pi case made out of aluminum. But once it’s out of your hands, it’s deserving to be proudly on display running your favorite media center software. It’s made of beautiful aluminum core that is sandwiched between two black, soft touch shells that feel amazing in your hands. The Flirc Raspberry Pi case was designed to not only be functional for your Raspberry Pi, but to be drop dead gorgeous. ![]()
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