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All feedback (184)
- zhengzheng2011 (270345)- Feedback left by buyer.More than a year agoVerified purchaseGood buyer, prompt payment, valued customer, highly recommended.
Reviews (6)

Jul 12, 2016
after long time of use
Still working. Time is little drift (a few minutes after a half year) but that can be configure.

Oct 27, 2016
Review after testing
In general it is a good product.
There is one design issue (from my point of view). Relay's state are reset on each UART open port or USB connect (when powered from power jack). For some cases it is not an issue but on some cases you want to keep relay state even when open PC terminal.
Controller reset signal is connected to FTDI DTR (Data Terminal Ready) signal that toggles each time UART driver starts when open terminal.
This connection can be remove by removing a capacitor located close to the reset pin.

Feb 02, 2020
Working fine
Tested with 220V; over current protected and 1A load (for a few min). Working fine.
Didn't tested for long run yet.