4 ms·
Perhaps when you factor in development/engineering time. The machine is only a part of the cost of an automation project.
by redblacktree 4y ago
Perhaps when you factor in development/engineering time. The machine is only a part of the cost of an automation project.
- dghlsakjg 4y agoThis is exactly it. I work at a company that has used raspi's in hardware. There are cheaper alternatives, but there are not better supported alternatives. The most expensive rPi is a rounding error in terms of engineering time. Why bother saving ~$30 if you have to spend $1k worth of engineering time to diagnose a compatibility issue on some less well documented board.
- megous 4y ago"Support." Wake me up when one of the Rpi boards starts supporting basics like suspend to RAM.
- _joel 4y agoIs that needed a lot in industrial apps?
- geerlingguy 4y agoYes; not needing a full time Linux kernel developer and electrical engineer debugging your hardware and drivers because the SoC you're using was abandoned by the vendor 2 years after release is a big benefit.
- _joel 4y agoSorry Jeff, I mean Suspend to RAM :)
- megous 4y agoThis is a drag on anything battery powered, yes.
- nottorp 4y ago> The most expensive rPi is a rounding error in terms of engineering time. * depending on volume. For a couple hundred/thousand devices doing industrial automation yes. For a million and up, it makes sense to pay an engineer 3 months to reduce the BOM by 10 cents.
- dghlsakjg 4y agoTotally true. Our volume would be well below 1 million at market saturation. More important for us to be able to iterate and customize.
- chubs 4y agoI’m super curious, how do you solve for the issue where SD cards wear out in raspis reasonably quickly?
- _joel 4y agoThere's eMMC and SATA, even NVMe via PCI bus (with addons) as well as sd cards (hell even boot from usb now too). You can also reduce your write wear with putting stuff like temporal logs in ram etc.
- porknubbins 4y agoI looked into this for an industrial monitoring project. Its possible to configure the SD card as read only but kind of a pain to not be able to change anything.
- karmicthreat 4y agoThis is purely dependent on what SD card you are using. If you use a random cheap SanDisk off of amazon it will probably corrupt and fail eventually. A SLC or pSLC industrial card has better ECC, write longevity and power recovery than a commodity card.