# 8x Relay **URL:** \ **Category:** WiFi Relay\ **Created:** [18 February 2020 21:17 UTC](https://community.openenergymonitor.org/t/8x-relay/13361 "2020-02-18T21:17:22Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![bl00d\_b0b](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bl00d_b0b/32/12881_2.png) [@bl00d\_b0b](https://community.openenergymonitor.org/u/bl00d_b0b)\ **Post date:** [18 February 2020 21:17 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/1 "2020-02-18T21:17:22Z")
Hello, I am searching for similar hardware, to manage my heating using MQTT. I use thermostats with firmware from [GitHub - klausahrenberg/WThermostatBeca: Replaces original Tuya firmware on Beca thermostat with ESP8266 wifi module](https://github.com/klausahrenberg/WThermostatBeca). this one allow me to connect to my mqtt server. But I have collector with 8-12 valves in each floor. and maybe it’s possible to have similar product, but to manage at least 8 relays. Ed ---
**Author:** ![borpin](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/borpin/32/193_2.png) [@borpin](https://community.openenergymonitor.org/u/borpin)\ **Post date:** [18 February 2020 21:33 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/2 "2020-02-18T21:33:59Z")
Hi and welcome, > [@bl00d\_b0b](#): > > But I have collector with 8-12 valves in each floor. This has got lost in translation. Could you post a photo please? ---
**Author:** ![bl00d\_b0b](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bl00d_b0b/32/12881_2.png) [@bl00d\_b0b](https://community.openenergymonitor.org/u/bl00d_b0b)\ **Post date:** [18 February 2020 21:46 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/3 "2020-02-18T21:46:46Z")
Hello, i have ground heating. in each floor I have collectors with 8-12 valves. it’s a common installation. I want to have something similar to this box: [1-Wire Eight Channel Relay Module for Home Automation with DIN BOX](https://denkovi.com/1-wire-eight-channel-relay-module-for-home-automation-with-din-box) but this box usi one-wire. I want to have similar, but with mqtt. DIN box with 8 relays NO/NC and one mqtt ethernet/wifi Ed ---
**Author:** ![Bill.Thomson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bill.thomson/32/1834_2.png) [@Bill.Thomson](https://community.openenergymonitor.org/u/Bill.Thomson)\ **Post date:** [18 February 2020 22:01 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/4 "2020-02-18T22:01:11Z")
> [@bl00d\_b0b](#): > > I have collectors with 8-12 valves. Brian, Sounds like he’s talking about a _manifold._ e.g. one input, 8 outputs. ---
**Author:** ![borpin](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/borpin/32/193_2.png) [@borpin](https://community.openenergymonitor.org/u/borpin)\ **Post date:** [18 February 2020 22:04 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/5 "2020-02-18T22:04:34Z")
Yes @bl00d_b0b something like this? ![image](https://community.openenergymonitor.org/uploads/default/original/2X/a/a22736fede16ba93ba204f548869a2ce60f86e26.jpeg) ---
**Author:** ![stephen](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/stephen/32/19571_2.png) [@stephen](https://community.openenergymonitor.org/u/stephen)\ **Post date:** [19 February 2020 01:40 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/6 "2020-02-19T01:40:53Z")
it easy to find [4 relay boards](https://www.banggood.com/DC12V-ESP8266-Four-Channel-Wifi-Relay-IOT-Smart-Home-Phone-APP-Remote-Control-Switch-p-1317255.html?rmmds=search&cur_warehouse=USA) that are wifi capable that you can setup for mqtt but since you want mqtt that would not matter much if you did in blocks of 4s but I prefer [these](https://www.banggood.com/Relay-Shield-5V-4-Channel-Relay-Extension-Board-Module-p-1629344.html?rmmds=search) or [these ones](https://www.aliexpress.com/item/32886386019.html?spm=a2g0o.productlist.0.0.24d24fecuVT3fI&algo_pvid=7e984787-1f12-467c-9deb-7eef7577fa19&algo_expid=7e984787-1f12-467c-9deb-7eef7577fa19-5&btsid=0ab6f83915820756519335986e01ef&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_) if want 10 amp - they work with [wemos d2](https://www.banggood.com/D1-R2-V2_1_0-WiFi-Uno-Module-Based-ESP8266-Module-p-1085610.html?rmmds=search&cur_warehouse=CN) but depending on d2 you have to cut D4 pin or bend it over ( which is what i do) and then jumper that pin on the shield to D6 . which if you look at the top of the shield is listed as pin 6 ( the one you bend) jumper to pin 8 ( in the case the 10amp version you de solder pin 6 and pull it then jumper to pin 8) then you can use [espeasy](https://www.letscontrolit.com/wiki/index.php/ESPEasy) to handle the Mqtt or home automation software ---
**Author:** ![bl00d\_b0b](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bl00d_b0b/32/12881_2.png) [@bl00d\_b0b](https://community.openenergymonitor.org/u/bl00d_b0b)\ **Post date:** [19 February 2020 07:20 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/7 "2020-02-19T07:20:55Z")
hello, yes. like this. 9-12 valves. Ed ---
**Author:** ![bl00d\_b0b](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bl00d_b0b/32/12881_2.png) [@bl00d\_b0b](https://community.openenergymonitor.org/u/bl00d_b0b)\ **Post date:** [19 February 2020 07:29 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/8 "2020-02-19T07:29:55Z")
Hello, I have N/O valves 230V/2W. but I assume to use up to 8 channels, because several valves covers same zone. then I need up to 2-6W per channel. Ed ---
**Author:** ![bl00d\_b0b](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bl00d_b0b/32/12881_2.png) [@bl00d\_b0b](https://community.openenergymonitor.org/u/bl00d_b0b)\ **Post date:** [19 February 2020 07:33 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/9 "2020-02-19T07:33:35Z")
Hello. I use tasmota. Do you think ESPEasy is better? Ed ---
**Author:** ![borpin](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/borpin/32/193_2.png) [@borpin](https://community.openenergymonitor.org/u/borpin)\ **Post date:** [19 February 2020 08:18 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/10 "2020-02-19T08:18:15Z")
> [@stephen](#): > > it easy to find [4 relay boards](https://www.banggood.com/DC12V-ESP8266-Four-Channel-Wifi-Relay-IOT-Smart-Home-Phone-APP-Remote-Control-Switch-p-1317255.html?rmmds=search&cur_warehouse=USA) Ah, good find @stephen. > [@bl00d\_b0b](#): > > I use tasmota. Do you think ESPEasy is better? I have tried Tasmota & ESPHome and while ESPHome is easier to configure, I find Tasmota has a more reliable Wi-Fi connections. Gemerally they are all much the same so use the one you are used to. [edit] There is a Tasmota template for that board [LC Technology 5V 4 Channel Relay Board (LC-ESP01-4R-5V) Configuration for Tasmota](https://templates.blakadder.com/LC-ESP01-4R-5V.html) ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [19 February 2020 13:57 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/11 "2020-02-19T13:57:10Z")
> [@bl00d\_b0b](#): > > I have N/O valves 230V/2W Do not be misled by the rating “2W”. You will find the valve solenoids are highly inductive and you must have a relay that is capable of switching inductive loads. If you have a relay that is only rated for “resistive” loads, or does not have a rating for inductive loads, the relay contacts will wear out very quickly. ---
**Author:** ![Bill.Thomson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/bill.thomson/32/1834_2.png) [@Bill.Thomson](https://community.openenergymonitor.org/u/Bill.Thomson)\ **Post date:** [19 February 2020 14:11 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/12 "2020-02-19T14:11:14Z")
> [@Robert.Wall](#): > > the relay contacts will wear out very quickly. Or worse yet, weld themselves together. ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [19 February 2020 14:13 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/13 "2020-02-19T14:13:54Z")
Silver cadmium oxide is the contact material you want. ---
**Author:** ![stephen](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/stephen/32/19571_2.png) [@stephen](https://community.openenergymonitor.org/u/stephen)\ **Post date:** [19 February 2020 15:08 UTC](https://community.openenergymonitor.org/t/8x-relay/13361/14 "2020-02-19T15:08:55Z")
these manifold values – are not those small little motor driven ones as that what i usually have two wire if it either N/0 or N/C and the spring returns them to the default position them once the power is cut or 3 wire if it is adjustable then you need an open and close power… so potentially if you have 8 values you might need 16 relays if you want them to be to remain adjustable … but if you just want to open or close the above relay will work