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The Jun-Electron 3.5 inch Touchscreen features a 3.5-inch display, TFT LCD panel, 320 x 480 resolution, resistive touch control, 50 Hz refresh rate, and a handy case to house the Raspberry Pi. Screen quality is commensurate with the price tag and is best described as decent with sufficiently clear picture quality and passable colors. For small projects that don’t depend too much on high levels of interaction and where build quality isn’t high on the list of priorities, the Jun-Electron 3.5 inch Touchscreen stands as one of the best budget options on the market.
Passively cooling the Raspberry Pi, the performance is similar to Pimoroni’s version. But adding the fans drops the temperatures significantly and the combined cooling this case can keep your Pi cool under load for a full day. I hope I touch on as many points as possible in this guide. If you feel that I have missed something, then please don’t hesitate to leave a comment. Video Code: Select all [img]https://l4qzlq.dm2304.livefilestore.com/y3pGL3DEux6jHPPmUnOP8I9z855o7VOwPtzIE_gf6OCB5u4xI5NfhjPLJSkwzotn2yak7yGUhi_r7--yU-iWTHJg-IFUUN0KV7ZKrS1C6hdqOgQ5InR5mJ8Q7yhZUWXh2g0u3UHTZBDiVW7MXhv2BM_y-a8GZ8IKy9DeeKZXAesbFk/IMG_20151129_144331541.jpg[/img] In this guide, I am taking a look at the official Raspberry Pi touchscreen. This screen is perfect for anyone looking for a touch solution for their next project or would just like to extend the Pi’s functionality.A mounting point has been included below the display for the Official Raspberry Pi camera V1, V2 or the new Camera Module 3 (not compatible with the Raspberry Pi HQ camera). The camera hole can be completely hidden with the included adhesive panel. This head turning case really stands out from the crowd thanks to a gem pattern design on top of the sandblasted silver anodised aluminum. The case has a textured matte finish and clean edges. Around the case are cutouts for all the major ports on the Pi. Camera and Display cables will need to be routed via the slot about the micro SD cutout. A separate GPIO slot is low on the case, requiring a breakout board for general use. The Raspberry Pi 7″ Touch Screen Display records up to 10-finger touch commands. In practice, we found the display sufficiently bright, with good color accuracy and excellent finger responsiveness. The only real issue is the low-ish resolution rate compared to other 7-inch Raspberry Pi touch screens, which won’t suit all project types. It doesn’t ship with a case or stand, so factor in the cost of sourcing one. The monitor ships with a foldable smart case that doubles as a multi-position stand and a holder for the included smartpen. For the interface functionality with the Raspberry Pi, the screen uses two options (HDMI or USB Type-A, Type-C). PS: I've tried also to supply separate power supply to touchscreen but getting the same result as above. I believe it's not due to power supply issue.
The contrast ratio (CR) refers to the ratio luminance of the brightest to the darkest color. Generally, screens can give a high contrast ratio as per the desired. Note that there are no specific standards to measure the contrast ratio. 4. Display resolution Overall, excellent design. Everything lined up very well. I had to enlarge the rear screw holes a bit to get the screws in, but that is probably due to my ABS shrinkage. Took 2 seconds with a 1/8" bit, not a problem. After the reboot now make a small change again (Probably best to revert what you just did). After you have done this, the keyboard icon should now be displayed. Look & Feel
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A lot of suggestions is to get one 3D printed, but if you don’t have access to a 3D printer, then this can be quite difficult and expensive. SunFounder Raspberry Pi 10 Inch Touchscreen features an IPS LCD panel capable of a resolution of 1280 x 800, a speaker, wide 178-degrees viewing angle, fast response times, good color accuracy as well as picture quality. The SunFounder Raspberry Pi 10 Inch Touchscreen allows you to power your Raspberry Pi directly from the touch screen, a convenient solution for portable projects. The first on our list is an LCD touch screen straight from the official foundation of Raspberry Pi. The monitor is 7 inches large, with a touch display created explicitly for the Raspberry Pi board. With it comes 800×480 multi-touch support resolution. In addition, there are only two connections needed to make from the display to the Raspberry Pi board, thus easing the installation process.
Slots are provided on both the bottom and top faces of the rear cover to allow convection cooling, as well as provision of slots and mounting holes for a small 25mm cooling fan on the side face. The camera area of the front comes with three different face plates, one that has room for the camera and is flat, one that has no camera hole and one that has a camera hole but also lego-compatible studs you can build on. What kind of cooling? Some cases come with built-in fans while others use passive cooling by turning the top of the case into a heatsink. Still others leave room for a fan but don’t come with one. Are you planning to use the case in the lounge? Could fan noise become an issue? If so then a passively cooled Pi makes more sense. If you’re buying a case for a Raspberry Pi 4, cooling is critical especially if you are farming Chia or planning to run Windows 11.
Conclusion
Would you regard this as 'fatal' as Bengt says? Or could you do a simple work-around by using a male-female short extension USB-C cord from the RPi board to the power port hole in the case, after unsoldering the Argon One port?
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