Search found 214 matches

by dynamicdave
13 Nov 2018, 10:25
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Oops sorry - as someone pointed out (above) the transistor's body outline is round the wrong way.
The instructions in my document are correct, so if you follow them the circuit should work.

Note: I've corrected and uploaded the new breadboard layout.

Cheers from David.
by dynamicdave
13 Nov 2018, 08:24
Forum: ESP Easy: General Discussion
Topic: Button to toggle RGB leds
Replies: 13
Views: 2358

Re: Button to toggle RGB leds

Which version of ESP Easy are you using?

I've been trying to make use of your rules with the November,2018 releases of mega-espeasy.
It would be interesting to know which version/release you have used.

Cheers from David.
by dynamicdave
30 Oct 2018, 18:57
Forum: ESP Easy: General Discussion
Topic: Speeding-up MQTT transfers
Replies: 10
Views: 2055

Re: Speeding-up MQTT transfers

If anyone is interested, here's a listing of the rules for my traffic light sequencer. It receives an event from Node-RED via MQTT that simply sends a value between 0 and 3. All the rules do are decode the decimal value and turn apprppriate leds ON/OFF. Cheers from David. // Decode %eventvalue% for ...
by dynamicdave
30 Oct 2018, 09:44
Forum: ESP Easy: General Discussion
Topic: Speeding-up MQTT transfers
Replies: 10
Views: 2055

Re: Speeding-up MQTT transfers

Hi guys, Thanks for the suggestion about using 'rules' - I had completely overlooked 'rules'. The Node-RED flow (which I can post if anyone is interested) just decodes a decimal counter to drive three MQTT Out nodes that opearte the three LEDs. I've looked at the ESP 'log' and can see that there are...
by dynamicdave
28 Oct 2018, 18:51
Forum: ESP Easy: General Discussion
Topic: Speeding-up MQTT transfers
Replies: 10
Views: 2055

Re: Speeding-up MQTT transfers

Thanks for the 'heads-up' on that - I'll try to check it out.

Do you run 'mosquitto' on a Raspberry Pi by any chance??
If so, could you share your 'conf' file??

Cheers from David
by dynamicdave
28 Oct 2018, 16:22
Forum: ESP Easy: General Discussion
Topic: Speeding-up MQTT transfers
Replies: 10
Views: 2055

Speeding-up MQTT transfers

Hi, I've got a Node-RED flow that sends MQTT commands to turn three LEDs (Red, Yellow and Green on a WeMos D1 Mini) on/off to mimic the UK traffic light sequence. Although it works fine, there is a perceivable delay between one LED going off and the next one coming on. I've tried changing some of th...
by dynamicdave
28 Oct 2018, 16:05
Forum: Staff Announcements forum
Topic: Reference project for the upcoming homepage
Replies: 28
Views: 7743

Re: Reference project for the upcoming homepage

Hi
I've got various 'small' projects I've done with my IoT students.
I can send you the PDFs if you want?

Cheers from David
by dynamicdave
27 Oct 2018, 14:37
Forum: ESP Easy: Software
Topic: know the status of esp, alive or not?
Replies: 15
Views: 2460

Re: know the status of esp, alive or not?

I'm also interested,
Please enlighten me as to how you do it with MQTT.

Cheers from David
by dynamicdave
20 Oct 2018, 10:22
Forum: ESP Easy: Hardware
Topic: ebay sonoff devices?
Replies: 5
Views: 1300

Re: ebay sonoff devices?

Hi Brian, If all you are doing with the In-Line Sonoff is using it as a simple switch, then you could try flashing it with Tasmota. https://github.com/arendst/Sonoff-Tasmota I use ESP Easy on all my WeMos D1 Mini devices and Tasmota on all my SonOff devices. I use the SonOff devices around the house...
by dynamicdave
18 Oct 2018, 09:05
Forum: ESP Easy: Hardware
Topic: ebay sonoff devices?
Replies: 5
Views: 1300

Re: ebay sonoff devices?

Hi Brian, I've used (i.e. flashed) a number of these In-Line Sonoff switches. Sometimes I find one of the switches needs a few 'go's before the WiFi access point comes up. I did have a LOT of problems flashing Sonoff S20 units until I realised they use a different microcontroller chip. You might fin...
by dynamicdave
16 Oct 2018, 12:09
Forum: ESP Easy: Hardware
Topic: I want a switch to be pushed remotely...
Replies: 4
Views: 1006

Re: I want a switch to be pushed remotely...

Thanks for sharing this - brilliant use of 'Rules' and 'Events'. I've got a set of IR detectors around the outside of my house that drive WeMos D1 Minis that pass info via MQTT to Node-RED. I've now implemented your 'hints/suggestion' and can now test my system remotely - yipppeeee. PS: I'm using an...
by dynamicdave
26 Sep 2018, 10:18
Forum: ESP Easy: Software
Topic: use of switches to manage lights in the house
Replies: 3
Views: 959

Re: use of switches to manage lights in the house

Not too sure of your exact set-up, but you mention Node-RED, so I assume you have a Raspberry Pi or some other platform running Node-RED and MQTT. What I would do ( I have a number of WeMos Di Minis - ESP8266-based devices in my home) is set each ESP8266 to publish to a MQTT broker. In my setup I pu...
by dynamicdave
24 Sep 2018, 19:44
Forum: ESP Easy: General Discussion
Topic: Just some fun with home automation.
Replies: 5
Views: 1398

Re: Just some fun with home automation.

That video is so funny and could be true-to-life as I could see that situation happening.

Thanks for sharing - it lifted my day.
by dynamicdave
24 Sep 2018, 19:34
Forum: ESP Easy: Hardware
Topic: Can't find TSO4838 device
Replies: 7
Views: 1916

Re: Can't find TSO4838 device

Hi Shardan,
Do you know if the TSO4838 should respond to a TV remote??

When I used to use the old TSO1838 devices (many years ago with PIC microcontrollers) I had to fire an IR beam that was modulated with a 38KHz carrier.

Does the TSO4838 work in the same way??

Kind regards from David.
by dynamicdave
24 Sep 2018, 14:38
Forum: ESP Easy: Hardware
Topic: Can't find TSO4838 device
Replies: 7
Views: 1916

Re: Can't find TSO4838 device

Thanks for your swift response.

Now why couldn't I see that version/entry in the release I downloaded today??

Might be time for an eyesight test !!!!

Thanks again.
by dynamicdave
24 Sep 2018, 14:11
Forum: ESP Easy: Hardware
Topic: Can't find TSO4838 device
Replies: 7
Views: 1916

Can't find TSO4838 device

Hi,
I'm trying to find the "Device" dropdown to interface with the IR receiver TSOP4838.

I'm currently using mega-20180924 Normal and Test version.

Does anyone know which version of ESP Easy the IR receiver can be found???

Kind regards from David
by dynamicdave
20 Sep 2018, 14:08
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Hi, I don't really understand this question, as I'm not using 9v in this project "Where is the 9V block connected on your breadboard?" http://resources-area.co.uk/node-red-flows/moisture_sensor.pdf I used a Power-Block that gives out 5v that connects to the WeMos D1 Mini board via a normal micro-usb...
by dynamicdave
11 Sep 2018, 20:44
Forum: ESP Easy: Projects / Applications
Topic: NeoPixel with ESPEasy and Node-RED
Replies: 8
Views: 6455

Re: NeoPixel with ESPEasy and Node-RED

Right - bit of an update on progress. Eventually discovered I was using the setting for RGBW in the Device Tab - my NeoPixel strip was RGB - oops!! I removed the level shifter for the Data Line and connected the NeoPixel strip's Din to D6 on my Wemos D1 Mini via a 270R resistor. Now everything works...
by dynamicdave
10 Sep 2018, 20:59
Forum: ESP Easy: Projects / Applications
Topic: NeoPixel with ESPEasy and Node-RED
Replies: 8
Views: 6455

Re: NeoPixel with ESPEasy and Node-RED

Reflashed with 180908 - same effect. When I send a command ALL the LEDs come on White. Next time I send exactly the same command a single LED comes - sometimes the correct one, other times sort of random colors !!! I'm using a 2N7000 to level shift the data line (as per the diagram on the wiki). Thi...
by dynamicdave
10 Sep 2018, 20:41
Forum: ESP Easy: Projects / Applications
Topic: NeoPixel with ESPEasy and Node-RED
Replies: 8
Views: 6455

Re: NeoPixel with ESPEasy and Node-RED

Just received some strips of NeoPixels. Having trouble "talking" to them. When I send a MQTT command all the LEDs comes on together showing "white". When I send a color command sometimes the correct LEDs fires, other times a random LED with a random color. It seems like a timing issue??? I'm using t...
by dynamicdave
05 Sep 2018, 12:02
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Hi to Grovkillen, Here's a link to the website I set-up last year to document the students' work. http://youtrain.me.uk/iotclub/ This year I've been given a Google Classroom account which makes posting documents and keeping in contact with the students much easier. The downside is... everything is n...
by dynamicdave
05 Sep 2018, 09:38
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Hi Ken, Thanks for your inputs. The reason it is battery powered at the moment is I didn't have a mains outlet socket near the herb plants, so I used a power-block. The power-block lasts about 3-days at the moment. I haven't had time to find out if anything else is using the WiFi (which I think is t...
by dynamicdave
04 Sep 2018, 13:14
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Hi Rob, I use a set of Raspberry Pi(es) running Node-RED and MQTT on a self-contained private network in the school. The students each have one or two Wemos D1 Minis mounted on breadboards that they use to create various types of nodes (that communicate with a certain RPi to increase performance). T...
by dynamicdave
30 Aug 2018, 21:54
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Thanks - that makes sense to use the 'comma' and also matches the syntax of other commands that exist in the "rules".

Cheers from David.
by dynamicdave
30 Aug 2018, 21:17
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Thanks

Just one question...

What is the correct syntax for TaskValueSet ????

I've seen it written as TaskValueSet,12,1,0 and TaskValueSet 12,1,0
i.e. with a comma after the keyword or a "space"

Cheers from David
by dynamicdave
30 Aug 2018, 20:56
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Here's my first attempt at documenting the Soil Moisture monitor. Here's a link to the PDF tutorial guide and the Node-RED flow. Although there is a link in the PDF document to the Node-RED flow - I've shown the direct link here in case your PDF viewer doesn't render the link correctly. http://resou...
by dynamicdave
30 Aug 2018, 12:31
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Thanks for your inputs.

Hope to have some free-time this weekend to produce a schematic and a step-by-step instruction guide.

Cheers from David
by dynamicdave
30 Aug 2018, 09:15
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

In case anyone is interested I've made use of ESP Easy rules, timers and a generic dummy device (i.e. variables) to control one of the inexpensive resistive moisture sensors. I'm using a Wemos D1 Mini which is triggered by sending an event (via MQTT) called "activate" from my Raspberry Pi (running N...
by dynamicdave
24 Aug 2018, 12:59
Forum: ESP Easy: Projects / Applications
Topic: moisture sensor
Replies: 78
Views: 12677

Re: moisture sensor

Hi, Here's a link to a PDF for a simple exercise I did with my IoT students. http://resources-area.co.uk/node-red-flows/moisture_meter.pdf We used the very inexpensive resistive sensor and then used a transistor to power the sensor for 15 seconds every 15 minutes. The unit has been in used for nearl...
by dynamicdave
23 Aug 2018, 11:13
Forum: ESP Easy: Projects / Applications
Topic: NeoPixel with ESPEasy and Node-RED
Replies: 8
Views: 6455

Re: NeoPixel with ESPEasy and Node-RED

Dead simple answer to that question. I had some BC547 transistors in my scrap box (and couldn't wait to build the circuit) !!! I've seen some of the "integrated" devices you listed in your email and will order some (including some 2N7000) today. Thanks again for all your "inputs". Regards, David PS:...
by dynamicdave
23 Aug 2018, 10:23
Forum: ESP Easy: Projects / Applications
Topic: NeoPixel with ESPEasy and Node-RED
Replies: 8
Views: 6455

Re: NeoPixel with ESPEasy and Node-RED

Hi Shardan,
Thanks for your input.

I've constructed a two-transistor voltage-up level-shifter (ready for when my NeoPixel strips arrive from China).

Looking at the creative things other people have done with the strips means I'll have a lot of fun when they arrive.

Cheers from David
by dynamicdave
22 Aug 2018, 17:12
Forum: ESP Easy: Projects / Applications
Topic: NeoPixel with ESPEasy and Node-RED
Replies: 8
Views: 6455

NeoPixel with ESPEasy and Node-RED

Hi, I've just ordered a set of development boards (CJMCU-2812-8) that I plan to use with ESPEasy (Wemos D1 Mini) and via MQTT with Node_RED. I have two main questions. POWER I've seen various people using 5v and 3V3 to power the strips. What's the best voltage to use? If I use 5v, do I need to level...
by dynamicdave
12 Aug 2018, 22:14
Forum: ESP Easy: Projects / Applications
Topic: Joystick - buggy - rules??
Replies: 6
Views: 1553

Re: Joystick - buggy - rules??

Thanks for your feedback - which I do appreciate. I should have edited the text I sent to ZenOfMud (about his ESP Display Home - node management project) on Discourse before I posted it here. I realise you are one of the key players working on ESP Easy. I've been using ESP Easy and Wemos D1 Minis fo...
by dynamicdave
12 Aug 2018, 17:07
Forum: ESP Easy: Projects / Applications
Topic: Joystick - buggy - rules??
Replies: 6
Views: 1553

Re: Joystick - buggy - rules??

I've been writing some "rules" for one of my Wemos D1s - whilst I wait for my dual-axis joysticks to arrive (for my buggy project). Here's the rule-set... on System#boot do TaskValueSet,12,1,200 publish /node42/previous_value, [previous#value] timerSet,1,1 endon on rules#timer=1 do if [current#value...
by dynamicdave
11 Aug 2018, 14:49
Forum: ESP Easy: Projects / Applications
Topic: Joystick - buggy - rules??
Replies: 6
Views: 1553

Re: Joystick - buggy - rules??

Thanks for your response. Yes I know I could change the numerical range by using the formula (which I've done with my soil moisture sensor). I know roughly what I want to do, the problem is getting my head around how to use "rules" to achieve it. Really sorry I created some concern with the title "b...
by dynamicdave
11 Aug 2018, 09:10
Forum: ESP Easy: Projects / Applications
Topic: Joystick - buggy - rules??
Replies: 6
Views: 1553

Joystick - buggy - rules??

Hi, I'm planning on starting a WiFi-based buggy project (with my students) using an on-board Wemos D1 Mini to drive two motors using PWM from Node-RED. I plan to use a dual axis joystick (as the control box) where the analog values are sent to two ESP8266s and then via MQTT to Node-RED. My question ...
by dynamicdave
14 Jun 2018, 11:08
Forum: ESP Easy: Hardware
Topic: GROVE GPS module with SIM28
Replies: 1
Views: 951

GROVE GPS module with SIM28

Hi, Has anyone managed to connect a Grove GPS module to a Wemos D1 Mini ? The one I have uses the SIM28 GPS processing chip. I believe the module uses a serial communication - but it could be I2C. Product reference is: 113020003 from Seed Studio. Any information/advice on connections and how to extr...
by dynamicdave
29 Apr 2018, 09:49
Forum: ESP Easy: Hardware
Topic: Soil moisture
Replies: 15
Views: 6966

Re: Soil moisture

Here's a link to a PDF instruction sheet that I made for the IoT Club where I work as a tutor.
It covers the practical steps involved in setting up the mositure sensor.

http://youtrain.me.uk/iotclub/pdf/rs_11.pdf

Cheers from David
by dynamicdave
29 Apr 2018, 09:39
Forum: ESP Easy: Hardware
Topic: Soil moisture
Replies: 15
Views: 6966

Re: Soil moisture

Hi, I use the first version of the mositure sensor. I don't use the digital output. I use the voltage or analogue output. The voltage output connects to the analogue input on an ESP8266 (Wemos D1 Mini). I've mounted the Wemos D1 Mini on a small breadboard and routed the +3v3 for the moisture sensor ...
by dynamicdave
12 Feb 2018, 20:11
Forum: ESP Easy: Hardware
Topic: HX711 device interface
Replies: 2
Views: 1270

Re: HX711 device interface

Thanks for the swift response.
I've downloaded a "test" version and can see where the HX711 device is located.
Might be a week or two before my load cell arrives from China.

Thanks for all your help.
Regards from David
by dynamicdave
12 Feb 2018, 16:17
Forum: ESP Easy: Hardware
Topic: HX711 device interface
Replies: 2
Views: 1270

HX711 device interface

Just wondering if the HX711 device interface was ever added to a recent ESP Easy release ???

I've just ordered a Load Cell and HX711 interface card and was wondering the best way to control it from ESP Easy.

Any help/guidance/advice would be appreciated.

Kind regards from David
by dynamicdave
01 Dec 2017, 18:15
Forum: ESP Easy: General Discussion
Topic: no wifi (esp_0) after flash on S20
Replies: 35
Views: 21165

Re: no wifi (esp_0) after flash on S20

grovkillen wrote:
01 Dec 2017, 12:39
Regarding the Touch you should follow the wiki. They are covered with a guide on how to flash etc.
BRILLIANT news to report to you.
Thanks to your suggestion, I've managed to get both S20 working.

Kind regards from David.
by dynamicdave
01 Dec 2017, 12:30
Forum: ESP Easy: General Discussion
Topic: no wifi (esp_0) after flash on S20
Replies: 35
Views: 21165

Re: no wifi (esp_0) after flash on S20

My suggestion is to flash it using the bin file for ESP8285 (sorry 'bout that typo) since the ESP8285 is equal to the ESP8266 except that the 8285 has 1MB built in mem. The newer Sonoff seems to need other flash settings active, which the bin file for ESP8285 seems to have (please correct me if I'm...
by dynamicdave
01 Dec 2017, 09:58
Forum: ESP Easy: General Discussion
Topic: no wifi (esp_0) after flash on S20
Replies: 35
Views: 21165

Re: no wifi (esp_0) after flash on S20

You could try flashing it using 8255. The markings on the chip says it's an ESP8266. What are you suggesting? 1. Try flashing it with firmware for 8255, or 2. Flashing with the ESP8255 flasher tool Reading all the above messages it sound as if lots of people are having this problem. My S20s are for...
by dynamicdave
01 Dec 2017, 09:50
Forum: ESP Easy: General Discussion
Topic: no wifi (esp_0) after flash on S20
Replies: 35
Views: 21165

Re: no wifi (esp_0) after flash on S20

I've got the same problem trying to flash a couple of S20 Sonoff. I've used SonOff switches in the past, but never used the S20 before!! Tried all sorts of flashers/loaders and various firmware files. It seems as if the S20 has been flashed, but the ESP_easy_0 wifi never shows up. I received 5-off W...
by dynamicdave
30 Nov 2017, 23:30
Forum: ESP Easy: General Discussion
Topic: no wifi (esp_0) after flash on S20
Replies: 35
Views: 21165

Re: no wifi (esp_0) after flash on S20

I've got the same problem trying to flash a couple of S20 Sonoff. Never done this before!! Tried all sorts of flashers/loaders and various firmware files. I received 5-off Wemos D1 Mini devices in the same package as the S20s and they flashed with no problem at all. The markings on the PCB says S20-...
by dynamicdave
28 Aug 2017, 19:54
Forum: ESP Easy: Software
Topic: Sending a value to an Event
Replies: 2
Views: 903

Re: Sending a value to an Event

Hi Martinus,
Works like a dream - thanks for taking the time to point me in the right direction.

Thanks again from David
by dynamicdave
28 Aug 2017, 18:43
Forum: ESP Easy: Software
Topic: Sending a value to an Event
Replies: 2
Views: 903

Sending a value to an Event

Hi all, I have an ESP8266 node fitted with a DHT11 temperature/humidity sensor that works fine publishing values to Node-Red via MQTT. What I would like to do is send a value/parameter to an event to get the ESP8266 node to send either temperature or humidity. I can't seem to get the following code ...
by dynamicdave
26 Aug 2017, 11:34
Forum: ESP Easy: Hardware
Topic: ESP EASY LCD MQTT
Replies: 4
Views: 3240

Re: ESP EASY LCD MQTT

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 set the "Topic" entry of the MQTT node to... /<node_name>/cmd e.g. /wemos22/cmd Depending on how you h...
by dynamicdave
28 Jun 2017, 22:18
Forum: ESP Easy: Projects / Applications
Topic: Linking a SMART meter to home WiFi
Replies: 10
Views: 4486

Re: Linking a SMART meter to home WiFi

Thanks

I'll try a longer debounce time.

Cheers from David