I'm looking for a simple, cost-effective way to control traffic lights from a central location. The lights are actually mounted on signs next to directional arrows and language that show truck where to go next. Each sign post is equipped with a 12V solar system. I have a pair (none & gateway) of 900MHz Banner wirelsss input / output modules sitting in my office, but I'm hesitating to use them because the distance is short (<200 feet), there are many locations (I wan't to avoid underground or overhead wires), and I will never use more than three contacts on a single sign.
Amazon seems to have a virtually unlimitted number of wirelss switches. Some are 433 MHz, some are Wifi and some are Bluetooth, but almost all have key fobs. I'd like to have something towhich I can connect industrial pushbuttons.
I've used Schneider Harmony pushbuttons and receivers in the past and they've performed well, but I'm somewhat afraid that their performance would suffer if a transport truck were to be parked in the line of sight.
I'm also considering AD Click PLCs (One Master and several slaves), but they require 24VDC, which would require the use of a 12-24VDC converter, adding to the complexity.
Simple Wifi-enabled transmitter & receivers would be ideal. The site is well-served by external 2.4 GHz access points and I can easily *** a virtual SSID dedicated to this purpose. The transmitter would accept inputs from normally-opened pushbuttons and be paired to relay outputs on the various receivers.
Any suggestions?
Amazon seems to have a virtually unlimitted number of wirelss switches. Some are 433 MHz, some are Wifi and some are Bluetooth, but almost all have key fobs. I'd like to have something towhich I can connect industrial pushbuttons.
I've used Schneider Harmony pushbuttons and receivers in the past and they've performed well, but I'm somewhat afraid that their performance would suffer if a transport truck were to be parked in the line of sight.
I'm also considering AD Click PLCs (One Master and several slaves), but they require 24VDC, which would require the use of a 12-24VDC converter, adding to the complexity.
Simple Wifi-enabled transmitter & receivers would be ideal. The site is well-served by external 2.4 GHz access points and I can easily *** a virtual SSID dedicated to this purpose. The transmitter would accept inputs from normally-opened pushbuttons and be paired to relay outputs on the various receivers.
Any suggestions?
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