DX  » Community » Reviews » VRM04 Multifunction Uart Serial Port to Ethernet / Wi-Fi Converting Adapter Module w/ Antenna - Blue
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  • Overall Rating: 5
  • Price: 5
  • Quality: 5
  • Ease Of Use: 4
  • Usefulness: 5
Useful tool for DIY and help with automation – VRM04 Multifunction Uart Serial Port to Ethernet / Wi-Fi Converting Adapter Module w/ Antenna - Blue Reviews

posted by araghorn on 08/15/2013 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

Pros:
ready to use from the box, it has two separate rs232 instead of description (added in 1.78 fw). Brand device with the same functionality is 10 times more expensive
Cons:
Not really a cons! Ralink chip is hot enough, I preferred to use a little heatsink. Second usart is only on the board without any connector soldered. Only tx rx lines and rts for usart 1 (gpio1, checked only in 1.78 fw)
Other:
Placed in a plastic case. added an rs485 converter (max232+max485)on the second usart, and now it is a universal gateway for access to the industrial equipment)
Bottomline:
if you need remote access to any device with serial port this is just exactly what you need.

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