Search found 257 matches
- 14 May 2019, 13:59
- Forum: ESP Easy: Hardware
- Topic: Please recommend me good esp8266 board ..
- Replies: 11
- Views: 9527
Re: Please recommend me good esp8266 board ..
I've not tried using the DC plug, only the USB connector (which works fine). There are two fixed-voltage regulators on the board - one for +5V and one for +3V3. I would have thought these regulators would have dealt with the differing input conditions. When I have a spare moment I'll buzz-out the ci...
- 14 May 2019, 08:51
- Forum: ESP Easy: Hardware
- Topic: Please recommend me good esp8266 board ..
- Replies: 11
- Views: 9527
Re: Please recommend me good esp8266 board ..
I had a similar issue with the micro USB power connector parting company with the printed circuit board (on a couple of boards).
I bought some of these power adapters and brought the two boards 'back to life'.
The adapaters are listed on Banggood, AliExpress and Amazon.
I bought some of these power adapters and brought the two boards 'back to life'.
The adapaters are listed on Banggood, AliExpress and Amazon.
- 21 Apr 2019, 16:49
- Forum: ESP Easy: Hardware
- Topic: High Current Relay Suggestion
- Replies: 9
- Views: 8712
Re: High Current Relay Suggestion
This item from Banggood works fine from 3V logic (DC) and will control mains driven items. Although this particular item is rated at 50A, Banggood have other models available. There's also an LED on the top-face of the unit to show when the SSR is ON. https://www.banggood.com/Solid-State-Relay-SSR-5...
- 12 Apr 2019, 21:02
- Forum: ESP Easy: Projects / Applications
- Topic: Trying to find a schematic
- Replies: 5
- Views: 4310
Re: Trying to find a schematic
Hi Thomas,
Thanks for taking the time to look for me.
Here's the link to the schematic-graphic that I was looking for.
It's strange it did not show-up in your search on Google.
viewtopic.php?t=5377
Kind regards from David.
Thanks for taking the time to look for me.
Here's the link to the schematic-graphic that I was looking for.
It's strange it did not show-up in your search on Google.
viewtopic.php?t=5377
Kind regards from David.
- 12 Apr 2019, 20:56
- Forum: ESP Easy: Projects / Applications
- Topic: Trying to find a schematic
- Replies: 5
- Views: 4310
Re: Trying to find a schematic
Thank you Patou - that's the schematic-graphic drawing I was looking for.
Thanks for sharing the link with me again.
Kind regards from David.
Thanks for sharing the link with me again.
Kind regards from David.
- 11 Apr 2019, 20:59
- Forum: ESP Easy: Projects / Applications
- Topic: Trying to find a schematic
- Replies: 5
- Views: 4310
Trying to find a schematic
I'm trying to find a schematic circuit that was published on this forum a couple of months (or so) ago. It contained a Wemos D1 Mini, a PCF8574, a NE555-based device to create an interrupt, some MOSFETS and optocouplers. I can't remember what the project was called and can't find it after searching ...
- 04 Apr 2019, 15:43
- Forum: ESP Easy: General Discussion
- Topic: Can't get On WIFI#Connected to work
- Replies: 9
- Views: 5065
Re: Can't get On WIFI#Connected to work
If anyone is interested, I've managed to get a Rule-Set working to detect which WiFi network one of my student's WeMos D1 Mini is connected to. At home his router has a GW and DNS of 192.168.1.254, while at our IoT Club the GW and DNS is 192.168.1.1 I've flashed one of my Wemos D1s with the version ...
- 04 Apr 2019, 13:46
- Forum: ESP Easy: General Discussion
- Topic: How to DEBUG your RULES
- Replies: 2
- Views: 2827
Re: How to DEBUG your RULES
What a clever idea.
It will be extremely useful in developing some of my Rule-Sets.
Thanks for sharing.
It will be extremely useful in developing some of my Rule-Sets.
Thanks for sharing.
- 03 Apr 2019, 18:12
- Forum: ESP Easy: General Discussion
- Topic: Can't get On WIFI#Connected to work
- Replies: 9
- Views: 5065
Re: Can't get On WIFI#Connected to work
Thanks for you feedback.
When your have a chance - please can you look over the Rule I posted and see why the string comparison doesn't work ??
When your have a chance - please can you look over the Rule I posted and see why the string comparison doesn't work ??
- 03 Apr 2019, 16:34
- Forum: ESP Easy: General Discussion
- Topic: Can't get On WIFI#Connected to work
- Replies: 9
- Views: 5065
Re: Can't get On WIFI#Connected to work
I've created this rule, but for some reason the first IF test always evaluates to true. What is the correct syntax for comparing a system variable to a text string ?? on System#Boot do timerSet,1,5 endon on Rules#Timer=1 do If %ssid% = "iotclub" <<<<<<<<<<<< Gateway,192.168.1.1 Publish nod...
- 03 Apr 2019, 15:09
- Forum: ESP Easy: General Discussion
- Topic: Can't get On WIFI#Connected to work
- Replies: 9
- Views: 5065
Re: Can't get On WIFI#Connected to work
What I'm trying to do is detect which WiFi network a Wemos D1 Mini connects to. Then set a Gateway IP address accordingly. One of my students has a gateway at his home of 192.168.1.254, while at our IoT Club it's 192.168.1.1 This means each week he has to manually alter the 'settings' in the 'Config...
- 03 Apr 2019, 15:05
- Forum: ESP Easy: General Discussion
- Topic: Can't get On WIFI#Connected to work
- Replies: 9
- Views: 5065
Re: Can't get On WIFI#Connected to work
Iv'e made it as simple as I can to test it out.
On WIFI#Connected do
publish node80/report,hello
endon
On WIFI#Connected do
publish node80/report,hello
endon
- 03 Apr 2019, 10:41
- Forum: ESP Easy: General Discussion
- Topic: Can't get On WIFI#Connected to work
- Replies: 9
- Views: 5065
Can't get On WIFI#Connected to work
I'm using mega-20190315 and can't get...
On WIFI#Connected do
in a rule-set to work.
Does anyone know if this command works?
On WIFI#Connected do
in a rule-set to work.
Does anyone know if this command works?
- 02 Mar 2019, 10:25
- Forum: ESP Easy: Software
- Topic: How to send ALL devices status to controller
- Replies: 1
- Views: 1719
Re: How to send ALL devices status to controller
What you're doing looks like a good solution. Getting each unit to listen for a common or global event-trigger... on sendDeviceUpdate do Publish /%sysname%/feedback, [status_information] endon I label each of my Wemos D1 Mini modules (ESP8266-based modules) with a unique node name. e.g. node30, node...
- 06 Feb 2019, 21:03
- Forum: ESP Easy: Software
- Topic: Serial port
- Replies: 3
- Views: 3884
Re: Serial port
Thanks for all your help. I can now send information/data from the WeMos to my terminal (app running on a mobile phone) using rules. on !Serial#* do publish david,%eventvalue% serialsend %eventvalue% endon I can also set a dummy variable using this http command. http://192.168.1.90/control?cmd=TaskV...
- 06 Feb 2019, 08:16
- Forum: ESP Easy: Software
- Topic: Serial port
- Replies: 3
- Views: 3884
Serial port
I'm trying to use the serial port on a Wemos D1 Mini. The two problems I have are.. (1) Extracting the data from the received message (2) Trying to find a way of sending data/variable from the Wemos via the serial port Note: I'm using the very latest version of ESP Easy mega 20190202 release. Any he...
- 02 Feb 2019, 12:13
- Forum: ESP Easy: Hardware
- Topic: JY-MCU HC-06 Bluetooth Module
- Replies: 2
- Views: 2552
Re: JY-MCU HC-06 Bluetooth Module
Hi to one and all, I'm still trying to get the serial port working on a Wemos D1 Mini. This is what my basic rule looks like... on !Serial#* do publish david,%eventvalue% serial "fred was here" endon I get this MQTT message returned to Node-RED when I send red from my terminal (phone)... &...
- 31 Jan 2019, 19:52
- Forum: ESP Easy: Hardware
- Topic: JY-MCU HC-06 Bluetooth Module
- Replies: 2
- Views: 2552
Re: JY-MCU HC-06 Bluetooth Module
I've got my mobile phone (acting as a terminal) talking via bluetooth to the HC-05 bluetooth module that links to my Wemos D1 Mini. I can send data to the Wemos and using a rule get it published via MQTT to Node-RED. Also if I reboot the Wemos I can see all the boot-up messages on my phone. So all o...
- 30 Jan 2019, 14:48
- Forum: ESP Easy: Hardware
- Topic: JY-MCU HC-06 Bluetooth Module
- Replies: 2
- Views: 2552
JY-MCU HC-06 Bluetooth Module
I'm trying to get a Wemos D1 Mini (flashed with the latest ESP Easy release) to talk to a JY-MCU bluetooth module. I assume I should use the "Communication Serial Server", but what value do I put in for the "PORT" ? I can pair to the module from my mobile phone and send data, but...
- 18 Jan 2019, 14:41
- Forum: ESP Easy: Software
- Topic: Rules Help
- Replies: 13
- Views: 7126
Re: Rules Help
In your screenshots, your device name is Switch1 and the value is called State.
In the rules you have used... on Button#State=1 do
I think it should be... on Switch1#State=1 do
Regards, David
In the rules you have used... on Button#State=1 do
I think it should be... on Switch1#State=1 do
Regards, David
- 14 Jan 2019, 18:59
- Forum: ESP Easy: Hardware
- Topic: Can't find TSO4838 device
- Replies: 12
- Views: 8538
Re: Can't find TSO4838 device
Responding to my own post - that's strange. Well I have made some progress - I made a small test circuit (without using a Wemos, just an LED and a resistor) and discovered the TSOP-4838 doesn't seem to work off +3.3V supply only 5V. The datasheet says it should work on +2.7v to 5.5V. I then made up ...
- 14 Jan 2019, 18:48
- Forum: ESP Easy: Software
- Topic: HC-SR04 and the temperature
- Replies: 5
- Views: 6500
Re: HC-SR04 and the temperature
I thought the HC-SR04 was an ultrasonic distance measuring device.
Are we talking about the same device?
The SR04 and SR05 work on the speed of sound that varies slightly with changes in altitude (and with temperature as others have pointed out).
Are we talking about the same device?
The SR04 and SR05 work on the speed of sound that varies slightly with changes in altitude (and with temperature as others have pointed out).
- 14 Jan 2019, 10:24
- Forum: ESP Easy: Hardware
- Topic: Can't find TSO4838 device
- Replies: 12
- Views: 8538
Re: Can't find TSO4838 device
I've just been trying to get a TSOP4838 IR receiver working with ESP Easy.
I'm using the IR version of mega-20190109.
Has anyone managed to get the IR receiver working and if so, with which firmware version?
Kind regards, David
I'm using the IR version of mega-20190109.
Has anyone managed to get the IR receiver working and if so, with which firmware version?
Kind regards, David
- 14 Jan 2019, 07:48
- Forum: ESP Easy: Hardware
- Topic: nodemcu v3 + sonic sensor HC-SR04 can't get to work
- Replies: 5
- Views: 5245
Re: nodemcu v3 + sonic sensor HC-SR04 can't get to work
Here's a link to a write-up I did on HC-SR05 devices for my IoT students. http://resources-area.co.uk/node-red-flows/ultrasonic_distance_sensor.pdf The problem is the output from the Ultrasonic device is TTL(i.e. 5V and ground). You need to level shift this DOWN to match the input levels for 3.3V lo...
- 28 Dec 2018, 10:25
- Forum: ESP Easy: Software
- Topic: [noob question] esp8266 rules + analog read mq-2 senor
- Replies: 3
- Views: 3704
Re: [noob question] esp8266 rules + analog read mq-2 senor
Glad to help.
Cheers from david
Cheers from david
- 28 Dec 2018, 10:24
- Forum: ESP Easy: Software
- Topic: Very simple Temperature rule from Wiki not working?
- Replies: 4
- Views: 4335
Re: Very simple Temperature rule from Wiki not working?
Your question is very similar to the one I answered last night.
Have a look at this link...
http://www.letscontrolit.com/forum/view ... f=6&t=6228
Cheers from David
Have a look at this link...
http://www.letscontrolit.com/forum/view ... f=6&t=6228
Cheers from David
- 27 Dec 2018, 22:11
- Forum: ESP Easy: Software
- Topic: [noob question] esp8266 rules + analog read mq-2 senor
- Replies: 3
- Views: 3704
Re: [noob question] esp8266 rules + analog read mq-2 senor
You could try this piece of code. It checks the value of mq2 every 2 seconds (adjust the timing to suit your needs). On System#Boot do GPIO,5,0 timerSet,1,2 //Set timer1 for 2 seconds (adjust the timing to suit your needs) endon on Rules#Timer=1 do //This is executed when timer1 runs out if [mq2#val...
- 24 Dec 2018, 16:20
- Forum: ESP Easy: Projects / Applications
- Topic: "SmartNodeRules" concept idea
- Replies: 37
- Views: 24360
Re: "SmartNodeRules" concept idea
Hi, That sounds like a brillant idea - how much of it is workable at the moment??? I have a home automation system running on a couple of RPi-3s using Node-RED and MQTT. Around the house I have a number of WeMos D1 Minis (re-flashed with ESP Easy) that send various readings (temp, humdiity, pressure...
- 23 Dec 2018, 22:03
- Forum: ESP Easy: Software
- Topic: Does anyone use QNAP's QIoT together with ESPEasy?
- Replies: 6
- Views: 5389
Re: Does anyone use QNAP's QIoT together with ESPEasy?
Hi,
Some people on the Node-Red Discourse forum have used the Docker container to run Node-RED and MQTT on a QNAP.
https://discourse.nodered.org/t/anyone- ... ocker/4208
Unfortunately my version of QNAP NAS doesn't support Docker - hiss, boo.
Some people on the Node-Red Discourse forum have used the Docker container to run Node-RED and MQTT on a QNAP.
https://discourse.nodered.org/t/anyone- ... ocker/4208
Unfortunately my version of QNAP NAS doesn't support Docker - hiss, boo.
- 21 Nov 2018, 14:24
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
Hi, If you have removed the transistor and now make use of a GPIO output pin, then you have changed the electrical conditions of the circuit. When a transistor is ON, the collector to emitter resistance is very low (so +3.3v appears on the emitter). When a transistor is OFF, the collector to emitter...
- 20 Nov 2018, 12:48
- Forum: ESP Easy: Software
- Topic: [solved for FHEM] Avoid of sending first data from dummy-device to controller after reboot
- Replies: 7
- Views: 5297
Re: Avoid of sending first data from dummy-device to controller after reboot
Hi, Just noticed in one of your rules the named-variable 'var'. You might run into trouble using this becuase as from November 2018 release of EASY Easy Mega, 'var' is a reserved command in rules. You might want to change it to 'variable' or 'vars'. Here's what I was told... - - - - The problem with...
- 19 Nov 2018, 10:55
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
Don't worry answering this - I've found out about FHEM.
- 19 Nov 2018, 10:03
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
If you need any ideas for additional projects (ha, ha, ha) then take a look at some I've published on Discourse - Node-RED.
https://discourse.nodered.org/c/share-your-projects
Cheers from David
https://discourse.nodered.org/c/share-your-projects
Cheers from David
- 19 Nov 2018, 09:57
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
What does the abbreviation FHEM Mean ??
And snap... I have a QNAP NAS as well.
The only problem is my QNAP is a few years old and does not support Node-RED.
No problem as I run Node-RED on a couple of Raspberry Pi 3+ boards.
And snap... I have a QNAP NAS as well.
The only problem is my QNAP is a few years old and does not support Node-RED.
No problem as I run Node-RED on a couple of Raspberry Pi 3+ boards.
- 19 Nov 2018, 09:51
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
Hi, I decided to sketch-out the circuit as I might explain it to my IoT students (sometime). Basically the mositure sensor is acting as a voltage divider. If you look at Fig-1 it shows a simple voltage divider. The output voltage is proportional to the value of resistors R1 and R2. If R1 and R2 have...
- 19 Nov 2018, 07:59
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
Hi, Glad to have been some help to you. Really pleased you have got the ADS1115 and moisture sensors working with the WeMos. PS: I've added the Node-RED node called "telegram" to my system so when a plant is getting dry it sends a message to my mobile-phone "I'm getting dry, please wa...
- 18 Nov 2018, 21:04
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
Hi, Thanks for posting your original wiring diagram. It is as I suspected - you have commoned all the outputs together and fed them to the A0 pin on the WeMos. If you think about the circuit all four moisture sensors are in parallel (i.e. a parallel resistor circuit). Although you only switch-on one...
- 17 Nov 2018, 12:23
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
Re: moisture sensor
Hi, Can you share the schematic/wiring diagram of how you have connected/wired your moisture sensors? I've drawn a very quick diagram of what I think is on the YL-38 board. I'm only using the analog part of the board - which I've coloured in 'red'. This section is really just a potential-divider for...
- 14 Nov 2018, 11:10
- Forum: ESP Easy: General Discussion
- Topic: Button to toggle RGB leds
- Replies: 13
- Views: 8679
Re: Button to toggle RGB leds
Success.... I've been given the answer/reason why the named-variable didn't work in 'rules'. - - - - - - - - Hi, I got it now! See #1986. The problem with your rule is that [Var#n] is a reserved command that retrieves the system variable %Vn%. Wiki should be updated with this new commands and system...
- 13 Nov 2018, 21:04
- Forum: ESP Easy: General Discussion
- Topic: Button to toggle RGB leds
- Replies: 13
- Views: 8679
Re: Button to toggle RGB leds
Oh that's annoying - I thought the hint about (....) made sense and would solve the problem. Thanks for trying it out. PS: I've just noticed that on line-3 you have TaskValueSet 3,1,0 and on line-6 you have TaskValueSet,3,1,([Var#Color]+1) i.e. one with a space and one with a comma. I'm clutching at...
- 13 Nov 2018, 20:48
- Forum: ESP Easy: General Discussion
- Topic: Button to toggle RGB leds
- Replies: 13
- Views: 8679
Re: Button to toggle RGB leds
Thanks - I'll give that a try tomorrow (as one of my students has borrowed the node with the NeoPixels this evening).
Cheers from David.
Cheers from David.
- 13 Nov 2018, 19:52
- Forum: ESP Easy: General Discussion
- Topic: Button to toggle RGB leds
- Replies: 13
- Views: 8679
Re: Button to toggle RGB leds
Well that is eaxctly the same as the problem I'm seeing.
None of the November releases work with the incrementing a named-variable in the rules.
I agree with you, that the last version that works is 2018-10-31
Thanks for taking the time to check this out.
Cheers from David.
None of the November releases work with the incrementing a named-variable in the rules.
I agree with you, that the last version that works is 2018-10-31
Thanks for taking the time to check this out.
Cheers from David.
- 13 Nov 2018, 10:36
- Forum: ESP Easy: General Discussion
- Topic: Speeding-up MQTT transfers
- Replies: 10
- Views: 7275
Re: Speeding-up MQTT transfers
Here's a link to a detailed document that explains how to build a traffic light sequence and other patterns. It basically uses a function block as a decimal counter followed by other function blocks that act as decoders. http://resources-area.co.uk/node-red-flows/building_a_light_sequence.pdf Hope y...
- 13 Nov 2018, 10:25
- Forum: ESP Easy: Projects / Applications
- Topic: moisture sensor
- Replies: 78
- Views: 72059
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.
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.
- 13 Nov 2018, 08:24
- Forum: ESP Easy: General Discussion
- Topic: Button to toggle RGB leds
- Replies: 13
- Views: 8679
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.
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.
- 30 Oct 2018, 18:57
- Forum: ESP Easy: General Discussion
- Topic: Speeding-up MQTT transfers
- Replies: 10
- Views: 7275
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 ...
- 30 Oct 2018, 09:44
- Forum: ESP Easy: General Discussion
- Topic: Speeding-up MQTT transfers
- Replies: 10
- Views: 7275
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...
- 28 Oct 2018, 18:51
- Forum: ESP Easy: General Discussion
- Topic: Speeding-up MQTT transfers
- Replies: 10
- Views: 7275
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
Do you run 'mosquitto' on a Raspberry Pi by any chance??
If so, could you share your 'conf' file??
Cheers from David
- 28 Oct 2018, 16:22
- Forum: ESP Easy: General Discussion
- Topic: Speeding-up MQTT transfers
- Replies: 10
- Views: 7275
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...
- 28 Oct 2018, 16:05
- Forum: Staff Announcements forum
- Topic: Reference project for the upcoming homepage
- Replies: 28
- Views: 42972
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
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