How to protect an arduino from dust and moisture ?
I have already made an RPM datalogger using arduino and placed it in industry.I wanted to protect arduino from dust and moisture.I also want to know the life of arduino.
Environmental Protection of arduino
arduino
Related Solutions
I have created a little project with a custom build system (using Ruby) that makes this pretty easy without having to install the Arduino IDE. Basically, it uses a template Makefile, and a ruby script to make compiling the Arduino libraries extremely easy. You can see it at https://github.com/Earlz/make-wiring
However, I'm leaving the old answer here for information on rolling your own. It's quite cumbersome and annoying though:
Directions:
- Download a copy of the Arduino IDE source code
- Copy the contents of
hardware/arduino/cores/arduino
to a new directory I'll refer to as arduino_build - Copy the
pins_arduino.h
file from whichever Arduino variant is yours fromhardware/arduino/variants
(check boards.txt if you're not sure) to arduino_build - Add this makefile to arduino_build:
.
#BSD licensed, see http://lastyearswishes.com/static/Makefile for full license
HDRS = Arduino.h binary.h Client.h HardwareSerial.h IPAddress.h new.h pins_arduino.h Platform.h Printable.h Print.h \
Server.h Stream.h Udp.h USBAPI.h USBCore.h USBDesc.h WCharacter.h wiring_private.h WString.h
OBJS = WInterrupts.o wiring_analog.o wiring.o wiring_digital.o wiring_pulse.o wiring_shift.o CDC.o HardwareSerial.o \
HID.o IPAddress.o main.o new.o Print.o Stream.o Tone.o USBCore.o WMath.o WString.o
#may need to adjust -mmcu if you have an older atmega168
#may also need to adjust F_CPU if your clock isn't set to 16Mhz
CFLAGS = -I./ -std=gnu99 -DF_CPU=16000000UL -Os -mmcu=atmega328p
CPPFLAGS = -I./ -DF_CPU=16000000UL -Os -mmcu=atmega328p
CC=avr-gcc
CPP=avr-g++
AR=avr-ar
default: libarduino.a
libarduino.a: ${OBJS}
${AR} crs libarduino.a $(OBJS)
.c.o: ${HDRS}
${CC} ${CFLAGS} -c $*.c
.cpp.o: ${HDRS}
${CPP} ${CPPFLAGS} -c $*.cpp
clean:
rm -f ${OBJS} core a.out errs
install: libarduino.a
mkdir -p ${PREFIX}/lib
mkdir -p ${PREFIX}/include
cp *.h ${PREFIX}/include
cp *.a ${PREFIX}/lib
And then just run
make
make install PREFIX=/usr/arduino (or whatever)
And then to make use of the compiled libraries and such you can use a simple makefile like this:
default:
avr-g++ -L/usr/arduino/lib -I/usr/arduino/include -Wall -DF_CPU=16000000UL -Os -mmcu=atmega328p -o main.elf main.c -larduino
avr-objcopy -O ihex -R .eeprom main.elf out.hex
upload:
avrdude -c arduino -p m328p -b 57600 -P /dev/ttyUSB0 -U flash:w:out.hex
all: default upload
Also, if you try to compile the libraries in libraries/
you'll get a linker error if you don't do things in the right order. For instance, I had to do this to use SoftwareSerial:
avr-g++ -L/usr/arduino/lib -I/usr/arduino/include -Wall -DF_CPU=16000000UL -Os -mmcu=atmega328p -o main.elf main.c -lSoftwareSerial -larduino
The -larduino
must be the last library on the command line
Anyway, this was a pretty easy way to compile it for me. As future versions of the Ardunio come out, this makefile should be fairly future-proof, requiring just a few modifications to OBJS and HDRS. Also, this makefile should work with both BSD make and GNU make
See also a slightly modified version of this answer on my blog with an already compiled binary of the library (compiled using the "standard" pins_arduino.h).
** EDIT **
I found that adding the following compiler optimization flags to both the library building Makefile and each individual project Makefile greatly reduces the size of the final compiled binary. This makes the final binary size comparable to that of the IDE.
-Wl,--gc-sections -ffunction-sections -fdata-sections
.
So, for the library build makefile:
CFLAGS = -I./ -std=gnu99 -DF_CPU=16000000UL -Os -Wl,--gc-sections -ffunction-sections -fdata-sections -mmcu=atmega328p
CPPFLAGS = -I./ -DF_CPU=16000000UL -Os -Wl,--gc-sections -ffunction-sections -fdata-sections -mmcu=atmega328p
and, for each project makefile:
avr-g++ -L/usr/arduino/lib -I/usr/arduino/include -Wall -DF_CPU=16000000UL -Os -Wl,--gc-sections -ffunction-sections -fdata-sections -mmcu=atmega328p -o main.elf main.c -larduino
.
I'll leave the long talks to the other answerers. If the exact module you bought is the one on the picture then:
Connect:
GND
toGND
on ArduinoVcc
to 12V (orVin
on Arduino if you are feeding it from a 12V supply)
At this moment I would verify the voltage on pin IN
, this should be near 0V with respect to GND, if it is higher than 5V stop here. If it is near 0V, the last step is to connect:
IN
to the digital output pin you conotrol on Arduino.
So my answer is: If memory serves me right, my answer is: yes you can drive this type of module from Arduino.
Best Answer
Well, for that you put it into a box. You can spray the electronics with a special varnish to protect against the moisture.