Electronics > Projects, Designs, and Technical Stuff
What do you think of this NPFA20 compliant diesel fire pump panel?
floobydust:
Um, they desoldered the Arduino Mega connectors and flipped them to the other side? OUCH the burn
mjkuwp:
I don't mind the use of the MEGA but I think they should have flipped the header pattern so that a relatively standard one could be used. I use Arduino boards and Raspberry pi, etc. quite a bit for work and over the years I don't think any of the ATMEL chips have failed. The Raspberry pi boards get upgraded periodically so I have no opportunity to prove longevity but that is off-topic.
Here is another option for that board
https://www.rugged-circuits.com/mega-tech
It is ruggedized - although I do see that the MEGA in this control cabinet is surrounded by protection.
I wonder if the engineers chose to use the stock mega board because they lack the tools or knoweldge to burn the bootloaders into the chip. It is a pretty big head-start to have a USB -based serial port and bootloader onboard.
wraper:
--- Quote from: mjkuwp on November 06, 2019, 04:58:09 pm ---I wonder if the engineers chose to use the stock mega board because they lack the tools or knoweldge to burn the bootloaders into the chip. It is a pretty big head-start to have a USB -based serial port and bootloader onboard.
--- End quote ---
Probably stupid enough to realize that $2 programmer from China would do the job. It's like c'mon, If you can design that custom board, you should be able to put MCU on board and program it.
jbb:
It's generally tidy, but there are some things I would change:
* Solder the Arduino MCU straight to the IO board
* Separate the wire runs for the AC mains and all the low voltage stuff
* Provide better cable management of the ribbon cables over to the right (I assume they go to the front panel) to reduce the risk of pinching
* Try to get all the external wire entries onto the bottom face of the panel using proper strain relief (improves water resistance and lets you put other panels tightly side by side[/I]
coppercone2:
--- Quote from: wraper on November 06, 2019, 06:41:46 pm ---
--- Quote from: mjkuwp on November 06, 2019, 04:58:09 pm ---I wonder if the engineers chose to use the stock mega board because they lack the tools or knoweldge to burn the bootloaders into the chip. It is a pretty big head-start to have a USB -based serial port and bootloader onboard.
--- End quote ---
Probably stupid enough to realize that $2 programmer from China would do the job. It's like c'mon, If you can design that custom board, you should be able to put MCU on board and program it.
--- End quote ---
yea but you can't use a 2 dollar chinese usb thing to program stuff for an assembly line with confidence, maybe they thought arduino company has proper equipment? You would need to tap the signal from the programmer to verify its not damaging the chip etc
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version