bigegg
Scream Not Working Because Space Make Deaf
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Flashed with ESPHome so it connects to my HomeAssistant install.
- Thread starter bigegg
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Flashed with ESPHome so it connects to my HomeAssistant install.
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and then when it goes wrong someone gets asked to fix itthe reply go do one
Unfortunately I was the only maint sparky on site, so first I had to work out how it had been wired then find the fault
as most of the panels on site were similar I found another job elsewhere quite quickly 
Brad93
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that looks like my new (to me) welding positioner
addjunkie
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Why not have a switch like normal people?
bigegg
Scream Not Working Because Space Make Deaf
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is that relay outputs only or can you wire in sensors etc. too?
bigegg
Scream Not Working Because Space Make Deaf
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It has a row of header pins that give (I think, without looking):
Analogue input
3x GPIO [1]
RX + TX for a serial connection. Ostensibly for programming, but can be used as i2c?spi? or even two extra GPIO.
Plus a 5v?(might be 3.3v), and a ground.
It's quite a good board, tbh.
I also have another that doesn't have a controller onboard. That will be daughter-boarded to the above via a MCP23017 mutiplexer. (16 way)
That will give me another 8x relays, plus 8x GPIOs if needed.
[1] the pins are used for setting programming mode, so you have to be careful what state they are in when the board boots up. Not so good for switches, unless you use momentary ones)
northwest
Searching for the Holy Grail.........
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No.
Some of North East England's finest engineering.
Matrixx
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These are some of the items we would link terminals. Key words : link bar, comb, cross-connector screwed.
The cross connectors are the best as they dont use up the terminals, as they connect to the top centre. but you will need end cheeks to stop the bars touching
Do you always at pins to the end of the wires.
And do you always put two or 3 wires into one pin.
And finally where do you get numbers from that fit the wires...lol
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I use "pins" when terminating stranded wires, solid core doesn't need them, the proper name is "cord end" or "bootlace" ferrules
The ferrules are available in single or double entry style.
I get the cable markers from Partex they are the "chevron cut colour coded" PA-02 type.
When buying ferrules, be aware there are different standards so try to stick with one type to save confusion with the colours
I tend to use the French (Telemecanique) type.
Matrixx
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They are designed for one tri rated cable only, unless its a double one which is designed for two cables. but you should never put three in.
As above pins make it esier to put the wire into a connection point, and most new components are designed for them, but some of the older (20+ years) equipment specifically said to use bare wires only.
wire numbers, as above + RS and Farnell sell lots of different types
oh... any link or model numbers?
I have a bunch of esp8266 running 1 wire temp sensors in my freezers feeding back to home assistant
I have a machine with a dead PLC in it I'm going to swap to esp too, have been looking at boards but haven't decided on which one yet... yours looks perfect :-)
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If you haven't seen them before Audon Electronics do some good stuff at reasonable prices, we used their Cubloc touch screen HMI's with built in PLC' at one place I worked.
it's a big dehydrating machine, for meat/fruit/veg etc.
it's a really simple machine.... there's an internal fan, external fan, aircon unit and heating elements
needs to run at x temp for x time
then y temp for y time
then z temp for z time
outside fan blows fresh air in, heaters heat the air, internal fan circulates the air, aircon dries the air,
but they've made it massively compilated for no reason at all, it's all 3 phase heaters/fans, but the control system is 240v, 110v and 24vdc.... but that's all internal to the control panel
I understand low voltage switches/buttons for safety, but there's only an on switch and an emergency stop switch... all other control is via the plc... so why all the different voltages?
the internal fan swaps direction every 15min.... they used 5 timers for that? (plus no need for timers the plc could have done all of it?)
I bought it used out of a big food factory where they used it to dry fruit etc. as test batches for new products so,,,, it'll have been a bloody fortune new
I've no idea what the designers were thinking
sorry for the rant... it really annoys me
I can control the whole thing with 5 relay outputs and one temp sensor... I'll add extra temp sensors just because I like looking at graphs
also, plastic bearings houses inside the machine that runs at 90'C and a belt drive fan that should be direct drive from a face mount motor
bigegg
Scream Not Working Because Space Make Deaf
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This is it:
ESP8266 WIFI 8 Channel Relay Module ESP-12F Development Boa Supply 5V/7-28V Z5V9 4894855994340 | eBay
Find many great new & used options and get the best deals for ESP8266 WIFI 8 Channel Relay Module ESP-12F Development Boa Supply 5V/7-28V Z5V9 at the best online prices at eBay! Free delivery for many products.
www.ebay.co.uk
Just the first link I found. No preference for this particular seller.
They can be found on the 'bay, banggood, AliExpress or Amazon and others, by searching "esp8266 8 channel relay".
Also available in 4, and 16, channel flavours.
just a caveat/warning:
The relay boards are available without the built in power adaptor or the controller - just a parallel interface.
Double check they are actually the complete ones - although, tbf, the descriptions are usually pretty good, and the price is very different.
