Let's Control It

dynamicdave

Sorry I have no idea as I've NOT heard of Homey until you mentioned it.

You might find someone on this forum that has experience of how to use it.

Good luck from David.

dynamicdave

Hi,
I've been running a Wemos D1 Mini for just over 5-days with the latest firmware and have not had any re-boots (yippee).

: ScreenShot073.png (20.37 KiB) Viewed 33224 times

dynamicdave

In my first screen-shot I'm using two 'inject' nodes that inject a number... 0 and 1 into the MQTT-Out node. Your mqtt config is fine PROVIDED the format of the topic matches the MQTT nodes in Node-RED. I've given up using the forward slash at the start of the topic as it's not recommended in the MQ...

dynamicdave

Here are some screen-shots that might help. It's a very simple test flow to turn on/off an LED connected to pin 15 (D8) on the Wemos. You can obviously change this to use other pins. D6 (pin 12) is one of my favourite pins I use. In my set-up the MQTT broker is running on a Raspberry Pi on 192.168.1...

dynamicdave

I don't use Arduino, so I'd have to look it up the same as you. I use Node-RED and MQTT (Mosquitto). All my ESP8266s (well they are Wemos D1 Mini devices really) talk to Node-RED running on a Raspberry Pi (which is the sort of server on the system) via MQTT, and Node-RED sends commands to the Wemos ...

dynamicdave

Here's a link to a project I gave to my IoT students about using NeoPixels.

https://discourse.nodered.org/t/control ... ixels/4560

http://resources-area.co.uk/node-red-fl ... pixels.pdf

dynamicdave

First of all - you can't use two normal 5mm LEDs in series (driven from the Wemos +3.3V line) as the forward voltage drop across each LED is approx 1.8V. So two in series is 3.6V which means they won't turn on. Here are a couple of very quick and VERY rough sketches for you. One shows two LEDs in se...

dynamicdave

I bought three of these RGB strips for GBP 4.00 from Banggood in China. https://www.banggood.com/3Pcs-CJMCU-8-Bit-WS2812-5050-RGB-LED-Driver-Development-Board-p-983036.html?rmmds=myorder&cur_warehouse=CN One of the great things about NeoPixels is you can control the amount of RGB colour in the e...

dynamicdave

The ESP8266 and Wemos D1 Mini are +3V3 devices - so please don't connect +5V to them. You can use a transistor to buffer the ESP8266 to the 5V LEDs or even a relay or a level shifter. Small single LEDs normally run off of 1.6V, so you could think about having two in series with a suitable current li...

dynamicdave

I'm trying to get a set of touch buttons to work with a Wemos D1 Mini.

I've had them working in the past - just wondered if there was anything in the lastest mega release (2019-08-17) that affected their operation???

Or can someone tell me which release works with Touch Buttons.

Thanks.

dynamicdave

Oops - sorry, didn't spot the 'http post' requirement.
Hope you find a solution that works for you.

dynamicdave

The approach I've taken is NOT to use the Sleep Mode options - just leave them turned off. Then in one of the Rule-Sets use... deepsleep,<some_fixed_sleep_value> e.g. deepsleep,600 << Send Wemos to sleep for 10-mins i.e. 600 seconds One of my IoT students has built a solar-powered weather station th...

dynamicdave

Hi Keith,
Really nice to welcome you aboard.
Hope you find somethings that will help you with your Home Automation.

Quite a few of the guys here use Wemos D1 Mini devices (which are ESP8266-based) and Raspberry Pi(s) running Node-RED and MQTT (Mosquitto).

Regards, David.

dynamicdave

Is this still the case??

I have four PM messages that have been sitting in my OutBox for quite some time.

dynamicdave

Quick update...

+3days uptime with mega-20190805 norrmal 4Mb running on a Wemos D1 Mini.

Fingers crossed this will be huge step forward for mankind.

dynamicdave

Same here... +1day uptime with mega-20190805 norrmal 4Mb running on a Wemos D1 Mini.

dynamicdave

Looking at your photo it would appear you are using the on-board Rainsun antenna.

If you plan to use the external antenna (to get an increased WiFi range) then you will need to move the 0-ohm resistor (not an easy task as I found to my cost!!).

dynamicdave

wemos_sm.jpg In the packet with the Wemos D1 Mini PRO (that I received from China), were three or so different length connectors-with-pins. I used the longest ones and soldered them through the Wemos just like you appear to have done. This means they are long enough to go into the sockets on a brea...

dynamicdave

Yes - I would use a 330uF or 470uF with a 0.1uF (or 100nF) in parallel.

The large capacitor acts as smoothing capacitor whilst the small one should deal with any nasty spikes on the PSU rail.

Hope this helps.

dynamicdave

Here's a link to a solar-powered weather station one of my IoT Club students has been building.

It includes a TP4056 to handle charging a Li-Ion battery from a solar-panel.

The project uses a Wemos D1 Mini and ESP-Easy of course!!!

https://discourse.nodered.org/t/solar-p ... tion/12499

dynamicdave

Something like this should work... On startWatering Do gpio,12,1 //Activate the relay TimerSet,1,900 //Start the timer for 15-mins EndOn On stopWatering Do gpio,12,0 //Deactivate the relay TimerSet,1,0 //Reset the timer EndOn On Rules#Timer=1 Do gpio,12,0 //Deactivate the relay EndOn

dynamicdave

First idea that springs to mind is to send an 'event-commnad' (via MQTT) to the Wemos. Set-up a Rule-Set (in the Wemos) to listen for the event-command, and in the rule-set set the GPIO (gpio 12) and also trigger a timer for 15-minutes. If your main server (or whatever is sending the MQTT commands) ...

dynamicdave

I'd agree with that - I would be interested to try out SmartNodeRules.

dynamicdave

You could try this test routine. It publishes sensor readings every 10-minutes (i.e. 600 seconds) you might want to reduce that during testing. on System#Boot do timerSet,1,600 endon on Rules#timer=1 do publish reading/t41, {"deviceId":"t41", "value":[ds18b20#temperatur...

dynamicdave

Your syntax isn't quite the same as mine (don't know if it will make a difference). Maybe try... on Clock#Time=All, **:** do Publish /DataTopic,{"device":"MAdevice","cmd":"Humidity","method":"get","Humidity":[DHT22#Humidity]} endo...

dynamicdave

Hi, I've been using MQTT to publish messages( i.e. temperature values and supporting text like "Too Hot", "OK", "Too Cold") to a miniature OLED I2C module (connected to an Wemos Mini D1 ESP8266). I know it's not HTTP but MQTT works really well on the ESP8266 with ESP Ea...

dynamicdave

Don't know if this will help. I use the 'publish' command within a Rule-Set to publish a JSON string of values. e.g. publish remoteDevice/dataTransfer/reading,{"local_time":"%lcltime_am%","ssid":"%ssid%","ip":"%ip%","temperature":...

dynamicdave

This is the one I bought from Banggood in China. Took a couple of weeks delivery, but worth the wait. https://www.banggood.com/5_5V-1W-180mA-9595mm-Polycrystalline-Mini-Solar-Panel-Photovoltaic-Panel-p-999056.html?rmmds=myorder&cur_warehouse=CN I used a resistor divider network consisting of two...

dynamicdave

Physical size of solar panel is 95mm by 95mm. It's a 5V, 1 watt panel that we bought from Banggood in China. The battery is a Li-Ion rated at 3.7V, 2500mAh (again from Banggood). Couple of things to point out about our set-up... We configured switches on D5 and D6 and an output on D7. D5 defines whe...

dynamicdave

We used a set of rules that get triggered when the Wemos comes out of deepsleep. Take a few readings, publish them via MQTT to Node-RED, then go back to sleep by using the sleep command set to 900 (seconds). If you are interested, I'll be at the school tomorrow and can get the student to copy his 'r...

dynamicdave

Hi, I'm working with one of my IoT students on a similar project. Here's a link... https://discourse.nodered.org/t/solar-powered-weather-station/12499 Do you really need to report the readings that often??? As an experiment, we've been doing it every 15-mins for over a week running off of the solar-...

dynamicdave

Did you put the link in between D0 and RST ???

This is needed to bring the device out of 'deepsleep' when the sleep time has expired.

dynamicdave

Hi @georgep,
Did you add the capacitors to the the Wemos (or ESP8266) you are using (as I think that will make a world of difference) ??

Cheers from David.

dynamicdave

Is there a release of ESP Easy that allows the user to set a channel for the WiFi connection ?? I'm trying to connect a WeMos to a 'guest network' at a school - the problem is there are quite a few 'guest networks' with varying signal strength and the Wemos is finding the first one (which is not the...

dynamicdave

Thanks - that's great news.

I'm sure my students will be really pleased if their Wemos devices connect to the school's 'guest network'.

Thanks for sharing.

dynamicdave

Will a Wemos D1 Mini connect to a Class-A network? I'm going into a school later this week with a set of Wemos D1 Mini devices and wanted to know if there is any reason why these devices wouldn't connect to a Class A network ??? i.e. an IP address like... 10.1.40.80 I've not tried to do it yet, just...

dynamicdave

Just for clarification...

I'm using ESP_Easy_mega-20190607_normal_ESP8266_4M.bin on my test rig with the capacitors.

PS: It's been up for 17hrs 17mins as we speak!!

dynamicdave

Yes it is - how strange?? I've bought about 40 Wemos D1 Minis (over the last 18-months for my IoT Computer Club) from Banggood and Ali-Express. Some are real ones, others are most certainly clones. Although they all flash and work perfectly fine. PS: Just checked the test-rig has run for 936 minutes...

dynamicdave

I have an ESP-01S (on a breadboard) that runs off of an USB power adapter type HW-131.
This device would only manage 20 or so minutes of up-time before it rebooted.

I've just added a 470uF and 100nF to the breadboard, so it will be interesting to see how long it stays UP.

Regards, David.

dynamicdave

I think I have some 470uF capacitors so I'll lash-up another test-rig and see what happens.

I think having a 100nF capacitor close to any active device is 'classic textbook stuff' and very sensible.

Cheers from David.

dynamicdave

I've just checked and the Wemos D1 Mini is still going strong at 722 mins.

Here's a link to some photos and the same information I've posted on 'discourse node-red'

https://discourse.nodered.org/t/wemos-d ... oots/12495

dynamicdave

Hi guys, I've been doing experiments on 'deepsleep' with a set of Wemos D1 Mini devices and encountered the problem with random reboots. When I checked some of my other units, I found they were acting the same (rebooting at odd times). Some would reboot in say 23 mins, others might go for 70 or 80 m...

dynamicdave

Hi JiM, I tutor an after-school IoT Computer Club here in the UK. One of my students has just started a project to build a solar-powered soil moisture sensing and weather station. The plan is to use a Wemos D1 Mini (ESP8266-based device) running ESP Easy that reads the various sensors and sends the ...

dynamicdave

Here's a link to my PIR motion sensor project. It might give you some ideas for your application. I used a cut-down version with the students at my IoT Computer Club. I powered the PIR unit with 12v that I generated using a 'step-up' converter from the 5v input that feeds the Wemos D1 Mini. I must a...

dynamicdave

For some reason phpBB, the Forum Software, won't let me attach a file type .json or .txt -- his boo.

Give me your email address and I'll email it to you.

David.

dynamicdave

Hi @vedika - your message doesn't seem to relate to this thread.
Did you post it in the wrong topic/thread?

Cheers from David.

dynamicdave

Hi I haven't got the Wemos node that I mentioned above - I'ved used it for another project, sorry. Here are a couple of screenshots of the 'Config' and 'Controller' settings for another node (node29) (hope that doesn't confuse you too much). Hope this helps you. Please note that I'm not using the fo...

dynamicdave

Hi, This might help you. I have a set of three MQTT-In nodes (driven from some touch-buttons on a Wemos D1 Mini) to three function nodes in Node-RED that connects to a set of three MQTT-Out nodes to control a set of three LEDs (on the Wemos D1 Mini). The first MQTT-Out node has its topic configured ...

dynamicdave

You could probably re-write it as..

Code: Select all

On Rinnai#State do 
 If [Rinnai#State]=0
   gpio,14,1
 else
   gpio,12,1
 Endif
 timerset,1,30
Endon

On Rules#Timer=1 do 
gpio,14,0
gpio,12,0
Endon

dynamicdave

Just re-read your email. I think you mean the wiring of the DC plug and the USB connector are DIRECTLY JOINED TOGETHER. I didn't realise that !!!!!! If that's true - then it's something to be aware of as you could easily destroy an item/device if it was plugged into the USB port and the adapter was ...

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