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Questions tagged [waterproof]

For questions about design and methods to protect electrical and electronic systems from water damage.

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11 views

Protection of sensor and electrical wire conduits/trays from water [migrated]

I have an application where I have to use a couple of temperature sensors and some electrical wires running around a container (l x b x h = 2.3 x 12 x 2.6 m) that is situated outdoors. The electrical ...
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3answers
48 views

I designed a touch PCB keypad what can I do for silking and covering

I want to design a custom keypad for my board. I put my board in a Plastic box 15cm x 19cm and the box has a simple box door. I want to put a keypad and a 2x16 character LCD in this door to control ...
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2answers
44 views

Which components for flat waterproof buttons controller

I'm trying to build a waterproof controller to mount on a motorcycle, to interact with a Raspberry PI Zero. I'm looking for the best way to build something flat (it has to be mounted on the handlebar),...
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1answer
92 views

Waterproofing MLX90640 far infrared thermal sensor

I would like to use the MLX90640 far infrared thermal sensor array on a car as a "night vision" camera. Since glass blocks thermal radiation I have to install it outside the cabin. Is it possible to ...
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1answer
133 views

Watertight enclosures - what production steps are required to ensure no condensation on the insides?

Background We want to waterproof an electronic device and the specifications call for IP-65 protection. To this end, we have selected a sealed polycarbonate box to put the electronics in. The ...
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1answer
305 views

Potting microSD card inserted in slot with epoxy resin

I would like to know whether it is possible to completely cover/pot a microSD card inserted in a slot (which is soldered on a pcb) with an epoxy resin. Will the sd card continue working properly? Will ...
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0answers
72 views

Waterproof PCB pump driving stage

We are having issues with a small 12V DC pump which is used in a number of test systems in the field. The pump is powered by a standard DC power supply and integrates a small PCB driving stage, with ...
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3answers
90 views

How can electronic devices remain waterproof (no short circuits) while they have exposed charging connectors

I am a happy owner of a Garmin Fenix3 fitness watch and a developer for watch faces as well. I noticed my watch charges and communicates data through 4 pins (probably for the USB layout 0,VCC, Data+, ...
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4answers
104 views

Waterproofing temperature sensor

I'm working with LMT85 temperature sensor and I want it to be waterproof, once it will be working submersed by water. I'm thinking on use hot glue on connections and then use a heat shrink tube. Is ...
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1answer
167 views

Conformal Coating PC Parts?

I couldn't find any topics relating specifically to this sort of thing, and even tried asking folks over on Reddit at /r/buildapc, but I didn't get many responses or many people know if it would be ...
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1answer
60 views

Protecting handmade electronics from accidental water spillings [closed]

Keep in mind that I dont know the least about electronics. I have soldered and used some arduinos before, but that is it. I am preparing to make a mechanical keyboard (or handwire like they say on /r/...
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1answer
63 views

lithium coin cells, safe to completely cover? lightweight method to protect from the environment

I am trying to make equipment to measure temperature in small mammals, probably attached to a neck collar. The collar needs to be very lightweight (e.g. <3g total) so I am planning to use a ...
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1answer
91 views

PCB material that does not swell from water absorption?

We designed a microchip to sense high pressures under water. The chip senses pressure through a thin diaphragm that deflects and a corresponding piezoresistor circuit that measures the deflection. For ...
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0answers
397 views

ESP8266 IoT Waterproof Power Enclosure

I'm looking to hook up ESP8266 relay board, something like this, with a power supply that's not a 5v wall wart because I want to have it contained in a water proof project box that will be outside. ...
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5answers
385 views

Waterproof and pressure sensor

I'm designing an equipment that will be in a rural area exposed to heavy rains. I already got an IP67 rated enclosure with IP67 connectors and it's working as expected. I need to measure the ambient ...
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1answer
94 views

Will reed switches break in various weather conditions

I will be using an OKI ORD-9216 14mm reed switch in my mailbox, which is outside of my house. Below is a picture of a reed switch. I am worried to whether the reed switch's glass will crack due to ...
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0answers
427 views

Water Temperature Sensing with DHT22

This question may also be asked in physics stackexchange, but I'll try my luck first here. I want to set up a water temperature sensor system. My temperature sensor will most probably be DHT22 due to ...
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2answers
473 views

Preventing Water Ingress Through Cable Conductors

Suppose a 4-conductor cable is connected to a printed circuit board mounted inside of a waterproof enclosure. The cable may become damaged (the insulation may be breached) allowing water to seep into ...
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2answers
194 views

Do DC Power Jacks need waterproofing?

I plan to use a pair 5.5x2.1mm DC Power Jack as shown below to connect a battery pack to a DC motor that will drive an electric tricycle. Occasionally it may rain while the tricycle may be in use and ...
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1answer
750 views

Will Solar Cells charge under a clear plastic sheet?

I am planning to make a Solar Powered Battery Power Bank. I made one on a small scale and will scale it up. Anyway, there is a risk of rain short circuiting my DIY power bank. I thought of sealing my ...
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0answers
322 views

ESP + Lithium Battery Potting

I'm designing a monitoring system for plants based on a lithium-ion battery and an ESP8266 (Adafruit Huzzah board). Due to the application, water may come in contact with the battery and/or ...
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0answers
2k views

HC-SR04 ultrasonic sensor water proofing

I am using the above said HC-SR04 ultrasonic sensor with Arduino pro mini. Till now, able to get the range working properly. My plan is to use this in the overhead tank to measure the quantity of the ...
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1answer
123 views

Can Printed Circuit Boards or other electronic devices (Integrated Circuits, transistors) be damaged by water if the electricity is turned off? [duplicate]

Is it possible that electric or electronic devices be damaged by exposure to water if the current is turned off during their exposure to water and the electricity is switched back on only after the ...
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1answer
308 views

Piezoelectricity in water mediums

I am trying to run an experiment using a piezo ceramic cylindrical transducer (32X30X10MM 29 KHZ) to send a signal from the inside of a water-filled test metal tube to a transducer mounted on the ...
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1answer
116 views

Exposed contacts for power and data in an underwater project

I have a dive flashlight that charges via a proprietary USB connector and exposed pads on the exterior. My dive computer also has similar pads that don't charge but allow for data download and ...
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0answers
184 views

Waterproof connector to hack electric toothbrush [closed]

I have an Oral-B Triumph 5000 whose battery needs replacement. I would like to bring out the positive and negative connectors to both allow external charging/discharging/refresh (external smart ...
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1answer
163 views

IP protected Enclosure and Conformal Coating

I have an aluminium Enclosure and I am trying to make it waterproof by using Silicone. Is there any corrosion testing I can perform to Check Corrosion of Silicone or aluminium: to check the ...
2
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1answer
415 views

Material Suitable for Self-insulating Solders and Electrical Contacts?

I have been working on this personal project of water-proofing an electronic alarm clock, when I came across the idea of making electrical contacts non-conductive when produced. Specifically I have ...
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3answers
2k views

water proof bulkhead SMA connector

I have a wireless GSM module located inside a metallic enclosure. The module has an SMA connector to be connected to an antenna. I need a way to connect the external antenna to the module. The ...
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2answers
1k views

Waterproofing USB port

Recently Samsung came out with the new Galaxy and Edge phones which are advertised as IP68 rated.The mircro USB ports on these phones are completely exposed, yet are still IP68 rated. My question is, ...
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1answer
2k views

Test circuit for EU1640BCH12T / R Water proof ultrasonic sensors with Arduino?

I have EU1640BCH12T/R waterproof ultrasonic sensors, which I have got from this link. These are standalone raw sensors without breakout board and not a module like HC-SR04. Being a new electronics ...
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3answers
950 views

Charging a 12V car battery from a stream [closed]

EDIT: Thanks to everybody for replies and comments, which have been most useful. It seems that the hydro side of the equation would be challenging to implement, given the issues with sufficient head, ...
3
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1answer
98 views

Waterproofing my pulse width modulator board

I want to use a pulse width modulator to replace the on- off switch on my modified electric trolling motors. (I take disabled vets out on motorized kayaks). The modulator works great but, I need to ...
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0answers
619 views

Fixing a heated water dish: Pointers to a temperature table or guide for power resitors?

I'm fixing a heated water dish, used so that the dogs don't have to eat snow. The previous dish was heated with a wire embedded in what appears to be ceramic, on a foil back on the bottom side of the ...
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1answer
542 views

How to protect Ultrasonic Distance Sensor and Circuits from Water Vapours / Weather Conditions?

I am making the automatic water controller using Arduino and Ultrasonic Distance Sensors. My prototype is almost ready. But I have a doubt that if I put the sensors on lid of the water tanks, water ...
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3answers
603 views

Water level sensors for water pump

I have a "pompe a eau" inside a well of 40 meters length, the water pump doesn't stop if there is no more water in the well and that causes damage to it. So I tought of using water level sensors just ...
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1answer
2k views

Waterproofing electronics by dipping into polyurethane or lacquer

I've been looking at and thinking about a few related topics... https://arduino.stackexchange.com/questions/9163/using-arduino-for-industrial-process Reliability of the Arduino platform for ...
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1answer
491 views

How is water resistance of a device measured?

This question has relation to physics as well, but since it is electronic related, it is here. I was watching a video that is testing the water resistance of Apple Watch. They say, at 3 feet the ...
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1answer
905 views

Waterproof enclosures

I have a simple farm gate monitor which I'd like to put in a rugged waterproof enclosure to keep it dry enough to operate outside for approximately ten years with no maintenance other than the ...
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2answers
852 views

How to mount a toroidal transformer in a waterproof plastic case

I have a toroidal transformer with mains input and 24V output, which I want to mount in an IP65 ABS plastic case. The transformer comes with two rubber and one metal disc for mounting, along with a ...
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2answers
1k views

Are all solenoids waterproof?

I have an application where I need a solenoid to control a valve at the bottom of a tank. For unimportant reasons the valve needs to be inside the tank at the bottom. I was wondering are all ...
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7answers
9k views

Creating a waterproof project enclosure

I recently got an otterbox drybox for my phone. I was sitting and thinking that its waterproof, crushproof, and big enough to fit what I need as well protective foam. I realized this would make an ...
2
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1answer
250 views

How much humidity can a microcontroller/embedded device withstand?

I'm working on a project that employs a microcontroller in an 80-85°F environment with quite a bit of humidity. It's going to be placed directly next to an array of fish tanks. Obviously, the water ...
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1answer
890 views

Air Circulation inside waterproof IP67 enclosure

We are using an SHT15 sensor + Arduino to measure relative humidity. The electronics is supposed to operate in a very high Relative humidity (~ 70 - 80) and wet conditions. To protect the electronics ...
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4answers
4k views

How to package a sensor watertight in a DIY environment?

I need to measure the temperature in a terrarium and use that as an input to a temperature controller. The terrarium is quite humid, e.g. above 80%. Also the packaging should have minimal thermal mass,...
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1answer
453 views

Are there any consumer-grade waterproofing solutions? [duplicate]

Is there a common solution to protecting electronics from water by coating conductors in dielectric material? I figured you could just cover everything in thin layer of hot glue, but there might be a ...
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2answers
2k views

Measuring water pressure in a tank

I am trying to build a pressure sensor ( PSI gauge ) that will be used to measure and monitor the pressure in a pool water filter. These generally have a mechanical pressure gauge like this.... What ...
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1answer
213 views

Waterproof power connections

I need light up about 960 square feet of translucent flooring from below. It's an outdoor installation, so it needs to be waterproof. Further, it has to be done in a matter of just a few weeks, and, ...
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2answers
3k views

Recommended Waterproof Cable Gland for Ethernet Cable?

I have a waterproof box that I would like to pass a pre-assembled RJ45 ethernet cable into. What is the recommended cable gland size for this application? Cable glands seem to all be specified with ...
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2answers
16k views

Are credits cards water proof?

I have a non-magnetic(aka card with chip) credit card. I had the classic accident where it took a quick bath in the washing machine. :) Some questions came in mind immediately: - Are they water proof?...