Quality is good. I could not find any bad soldering or similar problems.
The "Relay-Output" (230V AC/DC-line in my project) is not directly connected to the DC-Input/switching-input. Less risk of killing your Arduino or Rapsberry Pi or yourself. Works directly at the GPIO of the Rapsberry pi without a transistor (own risk, GPIO outputs 3,3... Read more
small relay module with to seperate relays. four mounting holes, three leds for the status, power, relay1 and relay2.
The four mounting holes make it possable to fit it stable inside a case Mounting holes are small and placed near the side of the board The optocouplers make it safe to use. It makes that the relais output is not connected to the 5 volt ... Read more
The value is low compared with other modules of the same segment, ie 5v input with 2 relay, 28v to 250v supports in a strain of 10A. Not contain LED indicating the relevant state, ie, when it is on or off. Can be used with a switch in parallel. Easy installation for aqules who has basic knowledge of electronics and arduino. This relay will serve 95%... Read more
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