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المراجعات من بلدك فقط (Iraq)
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  • 10/04/2019

    does not work

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  • 06/05/2019

    Available WiFi module for switching 220V. I want to use to control the floor lamp.

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  • 30/06/2017

    Thank you for your delivery. The shipment was delivered okay.

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  • 01/03/2019

    +

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  • 27/11/2018

    Thanks for the delivery. The mail arrived okay.

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  • labsud
    FR
    28/01/2017

    Buyed one for installing custom firmware to open a garage door. Had to reverse eng. to find pinouts since there's no schematics. Found : GPIO4/19 = Relay (node MCU arduino pin name : D2) GPIO5/20 = input (node MCU arduino pin name : D1) 2 leds seems to be connected, one on output (activated a the same time of relay) and one on optocoupled input. I did not played with the input, but it seems it have to be powered with a 5V to activate. 2 connectors (2 pins, and 3 pins) have to be soldered to flash device. 3 pins needs to be connected to usb serial adapter (3.3V !!!). The 2 pin have to be shorted before switching on to make the device go on programming mode. Pgrogramming can be done on arduino environnement using NodeMCU ESP12E profile. Works, but a schematic would be appreciated to makers :) It's a bit expensive compared to SOnoff device.

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  • 11/12/2016

    The card arrives with power problem: the positive pcb stop near coil L1 ! In order to fix this problem need to make a little jump wire (brow cable) from fuse to coil pad. After this the board work, but only in access point mode. Someone has changed the wifi permission to use in existing network?

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  • 09/11/2016

    My previous post stated these do not work. There is one component that is mounted wrong - L1. This inductor is soldered 90 degrees out of the proper placement. If you are willing to remove this component, rotate it and re-solder it, these boards WILL work. With the help of Banggood Customer support we got it figured out. The Banggood folks are the best, very responsive and helpful. My company buys lots of parts from this company and they never let me down. If you can repair these boards they will work GREAT. Load up your favorite Arduino code and go for it. You can't beat the price if your will to fix them your self. I rated 3 starts on quality due to misplaced component

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  • 12/04/2017

    I buy a lot of items from Banggood and rarely have a problem. I bought this item with a view to purchasing a lot more. The connection details were found in the reviews/feedback but were not in the downloadable documentation - an oversight. Although there is an Android (apk) file there is no information of what is does or why you would need it. It would be nice if an example Arduino application was included so users could upload and try it straight away. Some guidance can be found here - but bear in mind the I/O ports may be different: https://openhomeautomation.net/control-relay-anywhere-esp8266/ http://iot-playground.com/blog/2-uncategorised/40-esp8266-wifi-relay-switch-arduino-ide http://www.electrodragon.com/w/ESP_Relay_Board

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  • 30/05/2019

    Bardzo ciekawy moduł z odseparowanym przekażnikiem i możliwością dołączenia wielu czujników (wyprowadzenia na płytce 2 GPIO na goldpin oraz 1 złącze przykręcane). Very interesting module with separated relay and the possibility of connecting multiple sensors (2 goldpin GPIO on the and 1 screwed connection).

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