Search found 183 matches

by dynamicdave
14 Nov 2019, 23:55
Forum: ESP Easy: General Discussion
Topic: Incorrect readings of analog input
Replies: 8
Views: 115

Re: Incorrect readings of analog input

Just checked my notes about the Wemos D1 Mini (a ESP8266-based microcontroller). The (new versions of the) Wemos D1 Mini have a couple of resistors (on-board the PCB board or maybe inside the chip) that act as a voltage divider. There's a 220K resistor in series with a 100K that connects to ground. ...
by dynamicdave
14 Nov 2019, 22:40
Forum: ESP Easy: General Discussion
Topic: Incorrect readings of analog input
Replies: 8
Views: 115

Re: Incorrect readings of analog input

Well what a coincidence... I've just been writing a tutorial for my IoT students on the Witty module. Yes it does have an on-board LDR connected to A0 (analog input) as per the schematic linked to above. The integer readings I'm getting range from 17 (total blackness) to 1024 (full light from the fl...
by dynamicdave
09 Nov 2019, 21:13
Forum: ESP Easy: Software
Topic: [Solved] Trying to use MQTT to control a servo
Replies: 1
Views: 193

[Solved] Re: Trying to use MQTT to control a servo

With some help from a friend I've got it working.

The MQTT topic should be... node68/cmd

And the payload should be... servo,1,14,120 (to move to 120 degrees)
by dynamicdave
09 Nov 2019, 20:41
Forum: ESP Easy: Software
Topic: [Solved] Trying to use MQTT to control a servo
Replies: 1
Views: 193

[Solved] Trying to use MQTT to control a servo

I'm trying to use MQTT (from Node-RED) to control a servo - not working. The topic in the MQTT-Out node in NR is.... node68/servo/1/14 with a msg.payload of 120 The on-board blue LEDon the Wemos flashes to indicate a transfer has taken place, just seems the command is not understood. However, if I u...
by dynamicdave
02 Nov 2019, 15:08
Forum: ESP Easy: Software
Topic: Analog soil sensor
Replies: 8
Views: 763

Re: Analog soil sensor

I use the formula (1024-%value%)/100 in my soil monitor.
Here's a link to the tutorial guide.

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

On my set-up I'm using a small-signal transistor to switch the +3V3 rail on/off to the soil sensor (to reduce the effects of corrosion).
by dynamicdave
01 Nov 2019, 18:39
Forum: ESP Easy: General Discussion
Topic: MQTT topic
Replies: 5
Views: 621

Re: MQTT topic

Thanks for pointing out that I should have surrounded the json string (in the Publish command) with single quote marks.

I can confirm that the json string publishes correctly in this release ( ESP_Easy_mega-20191028-21-PR_2698_normal_ESP8266_4M1M.bin ).
by dynamicdave
01 Nov 2019, 18:37
Forum: ESP Easy: General Discussion
Topic: Publish not working anymore
Replies: 25
Views: 1031

Re: Publish not working anymore

Thanks for pointing out that I should have surrounded the json string (in the Publish command) with single quote marks.

I can confirm that the json string publishes correctly in this release ( ESP_Easy_mega-20191028-21-PR_2698_normal_ESP8266_4M1M.bin ).
by dynamicdave
01 Nov 2019, 16:10
Forum: ESP Easy: General Discussion
Topic: Publish not working anymore
Replies: 25
Views: 1031

Re: Publish not working anymore

I've just tried again with release... ESP_Easy_mega-20191028-21-PR_2698_normal_ESP8266_4M1M.bin I have a publish command in a rule-set to publish a 'json' string. It would seem if the payload is just a single item, then it works. Publish,node24/ir_detector,{"ssid":"%ssid%"} If it's more than one ite...
by dynamicdave
01 Nov 2019, 16:08
Forum: ESP Easy: General Discussion
Topic: MQTT topic
Replies: 5
Views: 621

Re: MQTT topic

I've just tried again with release... ESP_Easy_mega-20191028-21-PR_2698_normal_ESP8266_4M1M.bin I have a publish command in a rule-set to publish a 'json' string. It would seem if the payload is just a single item, then it works. Publish,node24/ir_detector,{"ssid":"%ssid%"} If it's more than one ite...
by dynamicdave
01 Nov 2019, 14:38
Forum: ESP Easy: General Discussion
Topic: Publish not working anymore
Replies: 25
Views: 1031

Re: Publish not working anymore

I tried the version you mentioned and it does NOT work for me when I try to publish via a rule.

Note:
This is using a rule-set that works fine in a previous release (mega-20191003)
by dynamicdave
13 Oct 2019, 21:40
Forum: ESP Easy: Hardware
Topic: Any plans to support the TEA5767 FM receiver
Replies: 1
Views: 1021

Any plans to support the TEA5767 FM receiver

Hi,
Just checking if you have any plans to support the TEA5767 FM receiver that has an I2C interface ??

Kind regards, David
by dynamicdave
30 Sep 2019, 09:44
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

Hi Sasch,
Could I take you up on your offer to send/publish your config settings as I'd like to setup one of my spare Wemos D1 Mini as a test vehicle.

Regards, David.

PS:
Oops - should have opened my eyes and look in the thread above.
by dynamicdave
29 Sep 2019, 08:18
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

All my nodes (Wemos D1 Minis) have fixed IPs.

They all run Home Assistant (OpenHAB) MQTT.

I'll have to check and try fixing the WiFi channel and see if I can get a length of time that matches @Sasch600xt
by dynamicdave
28 Sep 2019, 17:35
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

Just a quick update...

Just checked one of my Wemos nodes and was surprised that it had gone for 29-days without a reboot !!!
by dynamicdave
26 Sep 2019, 15:39
Forum: ESP Easy: General Discussion
Topic: Issue with PCF8574 & Relays
Replies: 19
Views: 2434

Re: Issue with PCF8574 & Relays

Where did the schematic diagram, shown above, come from???

It looks to me (the way it is wired) as if the relay contact will short-out the relay coil and destroy the transistor/FET !!!!
by dynamicdave
18 Sep 2019, 06:55
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

Just checked one of my Wemos D1 Minis and found it had been running for over 18-days without a reboot.
This one has capacitors (large and small) fitted to the +5V and +3.3V power rails.
ScreenShot095.png
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by dynamicdave
03 Sep 2019, 10:30
Forum: ESP Easy: Software
Topic: Rule for watering cycles
Replies: 7
Views: 2608

Re: Rule for watering cycles

The only comment I would make (from my experience of using 'rules') would be to place the timerSet,5,1 as the last statement. i.e. interchange the position of timerSet,5,1 and gpio,15,1 On Clock#Time=All,22:00 do let,1,1 // compteur de boucles (de 3 zones) de 1 à %v2% let,2,5 // nombre de boucles (d...
by dynamicdave
01 Sep 2019, 19:06
Forum: ESP Easy: General Discussion
Topic: Feedback required: New sets of plugins/controllers
Replies: 20
Views: 3537

Re: Feedback required: New sets of plugins/controllers

I'd give a thumbs-up for @iron suggestion (as I don't think it will be possible to make a set of lists to keep everyone happy).
by dynamicdave
31 Aug 2019, 21:04
Forum: ESP Easy: Software
Topic: Simulating a switch input
Replies: 1
Views: 2366

Simulating a switch input

Has something changed recently with the Switch plugin ??? I used to be able to send an event (from Node-RED vai MQTT) to trigger a rule that would toggle a GPIO pin. So I could (remotely) check if the input was working. I also used a Switch plugin to check the state of an input (on the same pin) (th...
by dynamicdave
26 Aug 2019, 20:11
Forum: ESP Easy: Hardware
Topic: Solar Power Supply
Replies: 60
Views: 4394

Re: Solar Power Supply

I bought these solar panels from Banggood for one of my students who built a solar-powered weather station earlier this year. https://www.banggood.com/5_5V-1W-180mA-9595mm-Polycrystalline-Mini-Solar-Panel-Photovoltaic-Panel-p-999056.html?rmmds=myorder&cur_warehouse=CN He used pretty well the same ci...
by dynamicdave
24 Aug 2019, 19:43
Forum: ESP Easy: Hardware
Topic: ESP Board and Power via Battery
Replies: 5
Views: 3186

Re: ESP Board and Power via Battery

Here's the link to the project on Discourse Node-RED.

https://discourse.nodered.org/t/solar-p ... n/12499/73

The project was split into six managable stages.

I hope you find this useful.
by dynamicdave
23 Aug 2019, 10:22
Forum: ESP Easy: Hardware
Topic: ESP Board and Power via Battery
Replies: 5
Views: 3186

Re: ESP Board and Power via Akku

What's an Akku ???? Is it possible to put the ESP board in the shade and power it from a solar panel ??? One of my students has made a solar-powered weather station using a Wemos D1 Mini (ESP8266 running ESP-Easy). He puts the board to sleep for 15-minutes (to save energy), then when it wakes up it ...
by dynamicdave
23 Aug 2019, 09:42
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

Wooooo - that's impressive.
Looks like you are collecting a lot of data.
Thanks for sharing your work.
by dynamicdave
23 Aug 2019, 09:04
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

Really pleased to hear you got it working. The format you ended up with is very similar to what I would send from Node-RED via MQTT to a Wemos D1 Mini. Have a great weekend. Cheers from David. PS: What you could try next is... sending a message to your mobile phone using 'Telegram' telling you someo...
by dynamicdave
23 Aug 2019, 08:08
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

Hi to @Quart
Just checking... Did you manage to get MQTT working to operate your LEDs ??
by dynamicdave
22 Aug 2019, 14:40
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

Just guessing... but I would try a topic of.... YOUR_UNITS_NAME/gpio/15

and a Message of.... 0 or 1 or maybe "0" or "1"

Have you tried looking to see if there are any tutorials on the 'Homey' website ??

Best of luck.
by dynamicdave
22 Aug 2019, 12:22
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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.
by dynamicdave
22 Aug 2019, 09:15
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

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
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by dynamicdave
22 Aug 2019, 09:02
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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...
by dynamicdave
22 Aug 2019, 08:04
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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...
by dynamicdave
21 Aug 2019, 17:27
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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 ...
by dynamicdave
21 Aug 2019, 16:14
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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...
by dynamicdave
21 Aug 2019, 15:24
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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 each ...
by dynamicdave
21 Aug 2019, 14:11
Forum: ESP Easy: Software
Topic: Control some 5Volt leds with mqtt
Replies: 21
Views: 3293

Re: Control some 5Volt leds with mqtt

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...
by dynamicdave
19 Aug 2019, 14:38
Forum: ESP Easy: Software
Topic: Touch Buttons not working
Replies: 1
Views: 2581

Touch Buttons not working

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.
by dynamicdave
13 Aug 2019, 16:22
Forum: ESP Easy: Software
Topic: Sending data to defined controller after deepsleep wake up
Replies: 16
Views: 3864

Re: Sending data to defined controller after deepsleep wake up

Oops - sorry, didn't spot the 'http post' requirement.
Hope you find a solution that works for you.
by dynamicdave
13 Aug 2019, 11:38
Forum: ESP Easy: Software
Topic: Sending data to defined controller after deepsleep wake up
Replies: 16
Views: 3864

Re: Sending data to defined controller after deepsleep wake up

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...
by dynamicdave
10 Aug 2019, 13:48
Forum: Introduce yourself
Topic: Hi from Scotland
Replies: 3
Views: 276

Re: Hi from Scotland

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.
by dynamicdave
09 Aug 2019, 11:53
Forum: Staff Announcements forum
Topic: Can't send PM
Replies: 3
Views: 810

Re: Can't send PM

Is this still the case??

I have four PM messages that have been sitting in my OutBox for quite some time.
by dynamicdave
08 Aug 2019, 17:51
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

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.
by dynamicdave
06 Aug 2019, 20:28
Forum: ESP Easy: General Discussion
Topic: Hardware Watchdog Reboots
Replies: 195
Views: 21057

Re: Hardware Watchdog Reboots

Same here... +1day uptime with mega-20190805 norrmal 4Mb running on a Wemos D1 Mini.
by dynamicdave
06 Aug 2019, 17:36
Forum: ESP Easy: General Discussion
Topic: Problem with Wemos D1 pro mini
Replies: 33
Views: 5690

Re: Problem with Wemos D1 pro mini

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!!).
by dynamicdave
06 Aug 2019, 15:01
Forum: ESP Easy: General Discussion
Topic: Problem with Wemos D1 pro mini
Replies: 33
Views: 5690

Re: Problem with Wemos D1 pro mini

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...
by dynamicdave
05 Aug 2019, 16:47
Forum: ESP Easy: General Discussion
Topic: Problem with Wemos D1 pro mini
Replies: 33
Views: 5690

Re: Problem with Wemos D1 pro mini

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.
by dynamicdave
03 Aug 2019, 20:36
Forum: ESP Easy: Hardware
Topic: Solar Power Supply
Replies: 60
Views: 4394

Re: Solar Power Supply

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
by dynamicdave
29 Jul 2019, 19:21
Forum: ESP Easy: General Discussion
Topic: Relay and internal timer
Replies: 4
Views: 3953

Re: Relay and internal timer

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
by dynamicdave
29 Jul 2019, 18:30
Forum: ESP Easy: General Discussion
Topic: Relay and internal timer
Replies: 4
Views: 3953

Re: Relay and internal timer

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) ...
by dynamicdave
27 Jul 2019, 11:48
Forum: ESP Easy: Projects / Applications
Topic: "SmartNodeRules" concept idea
Replies: 37
Views: 2913

Re: "SmartNodeRules" concept idea

I'd agree with that - I would be interested to try out SmartNodeRules.
by dynamicdave
25 Jul 2019, 18:15
Forum: ESP Easy: General Discussion
Topic: Changing output of the readings in ESP Easy
Replies: 5
Views: 4479

Re: Changing output of the readings in ESP Easy

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#temperature]} timerSet,2,1 endon on Rule...