Elfin EW11 RS485‐WiFi setup
The Elfin EW11 RS485 connects to a RS485 network and makes that network available over WiFi.
There are two models:
- EW11: internal antenna
- EW11-0: external antenna (Reverse Polarity SMA connector aka RP-SMA)
- size (without antenna) 61x28x18mm
- mounting for a few installation types are included
- both accept power from 5-36 VDC
- both have RJ45 connectors for a custom cable, and include a 4-PIN header to connect to your equipment.
I (rmeden) installed mine inside my Intellitouch power center. I just needed to cross some wires on the RS485 connectors. I bought the external antenna version (just in case). Turns out the signal is a bit weak, I'm considering an antenna extension cable. If you get one, note the connectors are RP-SMA.
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power on. Green LED will blink
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search on phone for EW11 wifi, connect to it.
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browse to 10.10.100.254 user admin pass admin
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serial settings
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- For IntelliTouch: 9600 baud 8/1/none, buffer 1024, duplex half, protocol none
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communication settings
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- local port 9801 (or just make a note of it)
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- buffer 1024 keepalive 60, timeout 300
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- Security disable Route: UART
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system settings
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- wifi settings
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- wifi-mode AP+STA
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- Scan for your wifi network, select it and provide KEY
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- save settings
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Others (poorly worded menu choice)
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- restart
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Reconnect to EW11 AP as before
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browse to 10.10.100.254 user admin pass admin
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Status page Note IP assigned (should be on your home network )
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Status page Note serial port, should see received bytes/frames
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resolve these two issues before proceeding!
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Connect to your home network
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browse to EW11 IP address and log in admin/admin
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if it's working, consider changing Wifi Mode to STA only (it's more secure)
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if it's working, consider reserving the IP on your router. Configure IP and Port in nodejs-PoolController-Dashpanel
