I wanted to add a GPIO breakout board mounted above the heatsink. The lower spacers also allow better air circulation beneath the unit. So on the bottom piece, the fixing holes were carefully counterbored to accommodate mounting pillars, allowing the unit to be fixed to a chassis, while giving the pillar threads enough reach to fasten the heatsink top piece. Here’s my experience with a commonly-available 2-piece heatsink assembly, intended for use in an ongoing project.įirstly, as it comes, there are no mounting provisions. Many technical articles stress the desirability of heatsinking the pi4, given its increased performance, and hence its power dissipation. Still need to find a “volunteer” to help run a network cable to its final location, which involves a crawl inside the roof space, that will be the final job. The Fibaro “ Smart Implant” dual relay allows remote power control through our ZWave network, as with the previous monitor. In standby mode, the unit remains powered up unless the rear panel mains switch is used to disconnect the power supply.Ī dual 12/5 volt power supply was used to power the monitor and the Pi. Its LED illuminates on boot to provide a status indicator. The incorporated Squeezelite audio player used the Pi’s headphone output instead, but this was later changed to a USB sound dongle after the output distortion became tiresome.Ĭontrol simply consists of a run/halt push-button. Its viewing angles are quite narrow, and the HDMI audio refused to work. The no-name touchscreen had been selected for robustness rather than performance. In the past, with regular Chromium, netstat Recv-Q had showed queued items when web-sourced features were used. As this device will be powered down on a nightly schedule, the memory leak is tolerable.Įventually settled on the Chromium Ungoogled browser as it included provision to allow up to 15 simultaneous tcp server connections. It behaved similarly, with the memory usage creeping upwards over time.
Since the 64-bit OS didn’t seem to offer better performance, flashed another SD card with Bullseye lite 32-bit, and set it up as before. Tests with the Ungoogled Chromium browser didn’t produce any improvement. Chromium itself required several tweaks, such as disabling the Safe Browsing and Chromecast services. In fact, the Pi’s memory use steadily climbed from 970 MB to around 3 GB over 24 hours of operation. No performance improvements were seen using Debian Bullseye lite 64-bit compared to the original unit, which still runs on 32-bit Buster. For the time being, the closest monitor resolution to that was set at 1280×800 On the Dashticz server itself, made a second custom home page for this device with a few minor layout changes compared to the original, which had been built for a 1366×768 display.
#Qoobar mutiple performers software
The software installation followed this guide Its main components are a 15-inch commercial POS (Point-of-Sale) touchscreen, and a Raspberry Pi4 8GB.
A second page allows manually switching our ZWave lighting circuits. This is a new Dashticz HA display, intended to quickly identify and control access to callers at our front door and Car Park gate from our Breakfast Room. In the Workshop, sitting on top of a Sound Bar
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