Refrigerator Door Sensor
- Category: Wireless
- Published Date
- Written by Timo Sariwating
- Hits: 466
Today I noticed a bit of water af the bottom of our refrigerator. It's probably because I still need to cut a hole in the sill and put in the plastic vent but it's one of those tasks that's still on the to-do-list. Whilst I was cleaning the refrigerator anyway I shot a few pictures to show the sensor we put on the door. It's a 433.92MHz DS10A Door Sensor with a longer cable attached. Mouting was easy using the supplied double-sided tape.
We mounted it on the inside of the door so you hardly notice it. Has been working fine for over a year now. The DS10A itself is located underneath the kitched cabinet behind the sill.
Toilet Flush Sensor
- Category: Wireless
- Published Date
- Written by Timo Sariwating
- Hits: 775
Mounting a sensor to the toilet flush button can be very useful. We use it to operate a fan after flushing the toilet.
A reed switch mounted to the flush button wasn't working. I tried and could not get a switch mounted and operating reliably.
I found a different solution. Sure Electronics sells water level sensors that work using a float. They can be had in horizontal and angled versions.
Modify MS14A Motion Sensor (433.92MHz)
- Category: Wireless
- Published Date
- Written by Timo Sariwating
- Hits: 1049
MS13 motion sensors work fine with RFXCOM. The MS13 operates at 433.92MHz and my RFXCOM has a 433.92MHz receiver. Only problem with the MS13 is its ridiculous price tag.
Enter the MS14A. It's the US equivalent of the MS13, it's weather resistant and can be found very cheap on eBay. Big John sells them in packs and ships to Europe. (Only takes a few days).
There is one problem with the MS14A. It operates at 310MHz which is not supported by my RFXCOM. I could have ordered a second 310MHz receiver but in the Netherlands the 310MHz frequency is not allowed. My other concern was the range and reliability which is far better on 433.92MHz.
Thanks to www.domotica.famschenk.eu I learned about converting the MS14A to 433.92MHz. After the conversion it operates perfectly fine with my RFXCOM.
Modify DS10A Door Sensor (433.92MHz)
- Category: Wireless
- Published Date
- Written by Timo Sariwating
- Hits: 1845
The wireless DS90 sensors work fine with RFXCOM. They operate at 433.92MHz and my RFXCOM has a 433.92MHz receiver. You can use them for just about anything that needs a simple On/Off sensor. The one thing wrong with them is the ridiculous price tag compared to the 310MHz version.
Fortunately in the US the DS10A (DS7000) can be found very cheap on eBay. Big John sells them in packs and ships to Europe. (Only takes a few days).
There is one problem with the DS10A. It operates at 310MHz which is not supported by my RFXCOM. I could have ordered a second 310MHz receiver for my RFXCOM and be done with it, but in the Netherlands the 310MHz frequency is not allowed. Other concern is the range and reliability which is far better on 433.92MHz.
Thanks to www.domotica.famschenk.eu I learned about converting the DS10A to 433.92MHz. After the conversion it operates perfectly fine with my RFXCOM.