Hy,
I`m building pcb that will add usb and bluetooth to bmw e39 stock radio.
Pcb is made of arduino nano, pair of dip8 and pair of dip 16 ics, two linear voltage regulators DAC decoder board and few electrolytic capacitors / resistors.
Is there anything I should apply to protect the pcb? against moisture , vibrations and other shocks? It will get placed inside the radio above the main board (where tape player was).
There is nothing visible on main board from radio and that got me thinking if I need to use anything at all.
I`m building pcb that will add usb and bluetooth to bmw e39 stock radio.
Pcb is made of arduino nano, pair of dip8 and pair of dip 16 ics, two linear voltage regulators DAC decoder board and few electrolytic capacitors / resistors.
Is there anything I should apply to protect the pcb? against moisture , vibrations and other shocks? It will get placed inside the radio above the main board (where tape player was).
There is nothing visible on main board from radio and that got me thinking if I need to use anything at all.
There´s a product specifically for that use, called "conformal coating".
Only "problem" might be minimum order could be "too much" for a single project, but, hey!!!.
, just ask 🙂
Hope everything is soldered, no sockets /pots/switches in the coated board.
Or you might pack it inside a later sealed plastic cabinet or even a humble plastic bag, easy to cut open if later needed.
EDIT:
Ultimate Guide to Conformal Coating | Chemtronics
Only "problem" might be minimum order could be "too much" for a single project, but, hey!!!.
, just ask 🙂
Hope everything is soldered, no sockets /pots/switches in the coated board.
Or you might pack it inside a later sealed plastic cabinet or even a humble plastic bag, easy to cut open if later needed.
EDIT:
Ultimate Guide to Conformal Coating | Chemtronics
Last edited:
The radio isn't mission critical, and is in a relatively protected location. Its the ECU and such that meets exacting standards of reliability and ruggedization.
You can use motor varnish, or a PCB spray, based on acrylic (Acryform?) or PVC.
Cans here about $5, enough for 10 computer SMPS...
Cans here about $5, enough for 10 computer SMPS...
You are modifying a tape player to newer FM / combo?
The above will work, for extra safety you can hold the PCB between soft springs or dampers, like bitumen or rubber washers.
The above will work, for extra safety you can hold the PCB between soft springs or dampers, like bitumen or rubber washers.
Many who have rebuilt automotive ECUs have successfully used Krylon clear.
The conformal coatings will cost more than your device, not sure if you want to invest that much.
The conformal coatings will cost more than your device, not sure if you want to invest that much.
$5 is more than the device?
About 20 computer SMPS worth?
Maybe expensive in your area, you can always put varnish on the board, which is about $4 a liter here.
About 20 computer SMPS worth?
Maybe expensive in your area, you can always put varnish on the board, which is about $4 a liter here.
$20 for a single aerosol can here, no electronics stores anymore, disposable culture…
Have to be resourceful.
Have to be resourceful.
$20!
Use varnish?
Even furniture varnish may work, possibly even clear coat urethane used for wood, the single component type.
I can do about 20 PC-AT SMPS with 100 ml. of insulating varnish applied with a brush...
Use varnish?
Even furniture varnish may work, possibly even clear coat urethane used for wood, the single component type.
I can do about 20 PC-AT SMPS with 100 ml. of insulating varnish applied with a brush...