4/8/2024 0 Comments Wifi lathe and plaster walls![]() ![]() Other microcontrollers and single board computers.Microcontrollers, FPGA & Single Board Computers.A la Carte(ALC) Custom PCB Design Services.I have an AP in my garage, and the very front corner of my house in my entryway does not have wifi coverage. Hello,Trying to send wifi thru plaster walls (no metal lathe, only wood), no mirrors, no cordless phones and only going about 20 feet. (See below for a shopping list and tools.)SUBSCRIB. It does not, however, make it far outside my house. This Old House general contractor Tom Silva shows a newer, faster way to fix cracked, loose plaster walls. How to get Technical Assistance from a Technical Support Moderator I have a single AP dead center in the middle of all of where most people use my wifi, and I get signal in all the rooms that need it.Sometime they look very stable, but arent. But often, there's enough windows or leakage up through attic and out through plywood to work well. Be very careful with old lathe and plaster walls. Exterior walls are usually are low attenuation, comparatively, even stucco + chicken wire. Interior walls, if drywall not lath/plaster, don't attenuate a great deal. Plastic can actually be beneficial for a wi-fi connection. Several other factors can affect Wi-Fi signals, including the location of your router, the type of router you’re using, and the number of devices that are connected to your network. Also, 802.15.4 at 2.4GHz uses QPSK modulation which works at far poorer signal to noise than does WiFi. In conclusion, plaster walls do not block Wi-Fi signals. It's 2MHz bandwidth versus WiFi at 20MHz so it can use a -95dBm signal whereas WiFi needs at least 10dB more. If you get any signal at all, the 802.15.4 will work. Put WiFi access point/router at one place, take laptop to other. From what you said, you probably won't need more. Since metal lath consists of metal and takes part in creating thicker walls, the WiFi signal can be greatly reduced or blocked. antenna connector, use $2 antenna to start, improve one end if needed. When laths are used, more than 5/8th-inch of plaster can be applied. The U.FL or SMA would be ok for the design, but that'd be one more part to find/buy/test etc. What Is a Lath and Plaster Wall Lath and plaster refer to an interior wall construction technique that typically predates the 1940s. Will xbee do this? If so, which power is appropriate? How do I select which antenna style is appropriate? The chip antenna seems most convenient, but the wire antenna would be fine too. Initially, the worst case distance will be ~100-150 feet but will be through 2 exterior + 2 interior walls. My aim is to have a mesh network of sensors distributed throughout a building and nearby outbuilding. More photographs of plaster walls & ceilings built on metal lath: Our ceiling cavity photograph of a plaster on metal lath system (below left) shows how plaster applied to metal lath has considerably more adhesion security than plaster applied over wood lath. ![]() ![]() Just a quick question before I buy a handful of xbee modules.I need to find out if I'm setting myself up for disappointment or success. ![]()
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