Let's Control It

ThomasB

This is quite the mystery. Try this: 1. Unplug the Sonoff device and leave it outside near the AC outlet. Your trusted reference thermometer should remain next to it. 2. Wait one hour, then plug-in the Sonoff device to the outlet. 3. Immediately after the device connects to Wifi observe the DS18b20 ...

ThomasB

Do you mean this?: {snip..snip} Yes. The chosen input is configured with pull-up. Do you think it is good to report/request the pull-up/down issue ... You are free to do that. FWIW, I'm not a good person to ask about requesting new features because of my stubborn opinion about solving the ongoing s...

ThomasB

Can somebody here explain, why is 3.22V detected on the ESP (NodeMCU) input, when no pull-up (external nor internal) connected/set for the PIN14?

It is your lucky day. The counter plug-in enables the internal weak pullup by default. See _P003_Pulse.ino

- Thomas

ThomasB

Since the counter plug-in does not have a pullup option you should install the external resistor. Couple minutes work, done.
- Thomas

ThomasB

Is the internal pull-up resistor connected to the GPIO after boot by default? No. Keep in mind that there are some GPIO that are pulled high and low for boot configuration. See https://espeasy.readthedocs.io/en/latest/Reference/GPIO.html#best-pins-to-use-on-esp8266 If not, how to configure input to...

ThomasB

Interesting. I grabbed my IR gun and checked a Sonoff Basic that has a DS18B20. Being in North America I use the formula option (%value%*9/5+32) to convert to F. The reported temperature matches my IR measurement. Maybe there's a formula corruption in your plugin. As a test, if your DS18b20 device f...

ThomasB

Any chance your sensor is physically close to the Sonoff? My story: I was getting elevated temperatures on my Sonoffs with DS18b20 sensors. Sonoffs run warm and my sensors were too close. I solved this by moving the DS18b20 several inches from the Sonoff. Is the sensor and Sonoff sharing space in th...

ThomasB

Also, keep in mind that hot swapping a powered sensor must use a compatible connector. For example, a TRS phone plug like this can be problematic: https://cdn.sparkfun.com/assets/c/a/3/6/6/5113dc95ce395fe501000000.png Depending on plug pin-out, connectors like it may briefly short power during plug ...

ThomasB

Just thought I'd share some tips on using the INA219 "Adafruit" type module with an external shunt. I'm using one ($2 Chinese clone) with an ESP32 to measure up to 200 Amps. My project does not use ESPeasy, but the overall concept remains the same. If you enjoy the math then Adafruit's pub...

ThomasB

Well then matching "NaN" could be a valid error state?

Sounds good. NaN or unique float values are both candidates for indicating a bad read.

Unfortunately this doesn't immediately help the OP. I think the discussed workaround ideas are the best choice at this point.

- Thomas

ThomasB

I guess it would make sense for a plugin to send out an event like [<taskname>#error] or something like that. Good idea. But I'd prefer to have the existing float values return a unique number such as -999.99 to indicate read failure. This would allow for simpler rule structure when checking for va...

ThomasB

1. I was thinking about someting like this (not tested yet) Your proposed rules look reasonable. 2. How do espeasy handle i2c or sensor errors? The sensor will report the i2c read error in the logs. But it doesn't appear that a rule can detect a read error. How to hande this case? I was thinking of ...

ThomasB

The problem only occurs when turning off a powered solenoid (both relay and solenoid de-energize), but does not occur when solenoids are disconnected (only relay de-energizes). If that is the conditions then I would say the PCF8574 is being reset due to the solenoid's EMF inductive "kick" ...

ThomasB

Sorry, I don't have a magic solution. But here's what I would try.
1. Install the latest Mega build.
2. Remove and reinstall the Thingspeak controller. Reconfigure it.
2. Confirm your API Key is accurate. It must be 16 characters long.

- Thomas

ThomasB

FWIW, ThingSpeak's communication protocol changed Feb 2019. It now expects MustCheckReply=True, otherwise the communication may unreliable. Set the plugin's Check Reply to Check Acknowledgement.

Details are here:
https://github.com/letscontrolit/ESPEasy/issues/2273

- Thomas

ThomasB

You're welcome. Glad to know you solved the problem.

- Thomas

ThomasB

publish,any/state/Umweltsensor/Beschattung,0 is being published. "any/state/xxx" is my standard for MQTT-messages in my network. That is helpful information; Confirms MQTT is configured OK. but still I get not the result of the average calculation to be published. See your rule statement ...

ThomasB

Please post a screenshot of the Devices page.

Also, your publish address is suspicious. Is your MQTT broker configured with a subscription that begins with "any/state/"? That seems to be the text from a random MQTT example rather than for your installation.

- Thomas

ThomasB

Today Hackaday published information on three of the latest ESP32/8266 exploit vulnerabilities. It seems that hackers can easily cause a WiFi crash. Geez, what a surprise. https://hackaday.com/2019/09/05/esp8266-and-esp32-wifi-hacked/ I'm wondering if Expressif's recently patched library will have a...

ThomasB

Q1: Can't help. Q2: What is a proper syntax of HTTP request for sending data from server to easyESP? It uses ESPEasy's HTTP command format. Like this: http://<espeasyip>/control?cmd=TaskValueSet,<task nr>,<taskvalue nr>,<value> Docu contains only info about using dummy sensor in easyESP rule. HTTP P...

ThomasB

What I am doing wrong? You should explain what is not working. For example: Dummy assignments not working? Averaged value wrong? MQTT not working? Something else? And include a screenshot of the devices page so the helper's eyes can see important details. Given the posted info, it seems to me that:...

ThomasB

Or any workaround? Here's what I propose. 1. Send the two values to ESPEasy's dummy vars. 2. If mission critical, ESPEasy rules could "echo" back a message to the sender to acknowledge when each value was received. 3. Send a event command that runs a rule that acts on the new values. - Th...

ThomasB

Thanks to TD-er, the releases after mega-20190827 might fix the WiFi hangs. So try flashing the latest Mega version.
https://github.com/letscontrolit/ESPEasy/releases

- Thomas

ThomasB

1. In "PLUGIN_TEN_PER_SEC" I only run step 1 of the PIR Motion sequence, then schedule a timer to event->TaskIndex (setting a flag to let PLUGIN_READ know there is a PIR event to read) I didn't have time to evaluate all your code. But I saw something that looks unusual to me. After deleti...

ThomasB

I still have unused OpAmps.This allows me to build a Schmitt trigger for the EN.

Don't forget that this application will require a micropower OpAmp; Single supply, rail-to-rail, and capable of operating at very low voltage.

- Thomas

ThomasB

Two common choices if you can't connect to the web interface: 1. Disconnect power. Use a jumper wire and connect RX and TX together. Apply power and wait a few seconds; During boot the flash will be erased. Then power down, remove jumper. 2. Connect the serial port to your PC. Send a Reset command u...

ThomasB

One way to solve this is to use a brown out detector . This provides a reset after the voltage becomes valid. Same concept as the Power Good ("PWR_OK") signal on a ATX PC power supply. For example: http://www.hnilica.cz/radek/zim/Electronics/Components/Brown-Out_Reset_Circuits.html - Thomas

ThomasB

My plan now is to change the relay to a version where I can select via a jumper if it behaves has a pull up or down That should solve the problem. I tried other schematics (and fried the PCF8574 with my different test, yes I'm a rookie) --> unsuccessful. Building circuits is the best to way to lear...

ThomasB

A developer (TD-er) made some recent changes that improve WiFi reconnects. So try the latest Mega build.

If the problem persists then try a different power supply adapter, even if you have done that before.

- Thomas

ThomasB

Yes, you will need a pull-up resistor on PCF8574's IO Pin. Because it appears your PCF8574 is powered by 5V you can follow the circuit diagram you posted. The pullup resistor value may vary depending on the relay module design. Start with 10K ohms, but be prepared to reduce it to achieve success; If...

ThomasB

All you need is a transistor, e.g. BD135 and a 1k resistor. Simply connect the transistor base via a resistor to GPIO5.

Glad to hear the final solution was quick and easy. In some paper/rock/scissors contests, solder beats software.

- Thomas

ThomasB

A typical solution would be like this: on Button#state do if [Relais#state]=0 event,RelayOn else event,RelayOff endif endon On RelayOn do gpio,14,1 gpio,13,0 endon On RelayOff do gpio,14,0 gpio,13,1 endon The http command to turn on your Relay & LED would be: http://IP_ADDRESS/control?cmd=event,...

ThomasB

OK, I just pushed forward without the ThingHTTP Name and I'm getting data so I'm really not sure what that field is for. AFAIK, the ThingHTTP name can be ignored. In a traditional controller plugin this field would be used for the server's user account name. Instead, Thingspeak only needs the api_k...

ThomasB

How do i address this problem on github? Go to https://github.com/letscontrolit/ESPEasy/issues and click "New Issue" button. EDIT: I checked the issue tracker and I think I found your problem. Please see this reported issue from Jan 2019: https://github.com/letscontrolit/ESPEasy/issues/22...

ThomasB

Oh my, it's an unusual problem. From what I see in the code, it appears thingspeak gets the same API message with a controller or rule. But they have slightly different setups during communication. Some notable differences I found during a quick review: The sendtoHTTP timeout is fixed to 1000mS. The...

ThomasB

The SendToHTTP rule is sending four field values, whereas the controller is only sending one. Maybe this is a clue to something important. It would be interesting to see what would happen if you change the SendToHTTP to this: SendToHTTP api.thingspeak.com,80,/update?api_key=xxxxxxxxxxxxxxx&field...

ThomasB

every MQTT message gets through but thingspeak only recieved a few

That's a interesting result. At the moment I don't have any brilliant ideas to offer.

- Thomas

ThomasB

I think i am going to try to write a code in ArduinoIDE in the hope it maybe works that way and use ESPEasy only for alltime on situations or in the case i only need to send data from one device/sensor. That's the easy way out. :) I'm curious, do the thingspeak / SendToHTTP rules work correctly wit...

ThomasB

Finally got it working with ESP_Easy_mega-20190817_dev_ESP8266_4M and the following config: Good to hear you got it working. Edit: Didn't see your followup message, sorry to read the bad news. the only problem i have now is that the Wemos crashes on first boot. When i hit the reset button everythin...

ThomasB

I don't see yet how it can happen to divide by zero. ++Plugin_002_OversamplingCount in PLUGIN_TEN_PER_SECOND can wrap around 0xffff and restart at zero before a read occurs. As noted, this breaks the ADC value. An unlikely division-by-zero scenario might occur if the wrapped sample counter is on 0x...

ThomasB

I have tried it with the default Controller setup instead of using rules and the values are beeing send correctly. I reviewed the controller's source code and found that the syntax for the API's "key" keyword is different than what is in your rule. Instead of key it uses api_key . Try thi...

ThomasB

The event triggers correct as you can see in the serial output, but nothing is send to thingspeak. Your log shows that the SendToHTTP action was sent. Are you sure you're using the correct API key in the rule? The log shows the key is "myapiwritekey", which I won't assume was edited to pr...

ThomasB

On ESP32 this bug is even worse, since that one has 12 bit ADC. Fortunately the sampled 12bit data is accumulated in a int32, so major disaster is averted. Oh and a crash can occur if it is dividing by zero. But I have not yet looked at the code, so no idea if that may happen here. I also saw that ...

ThomasB

You're using Mega-20190607 released in June. A week ago TD-er updated Mega so that it flushes all pending data before going to sleep. I have no idea if his new update will help you, but perhaps it's worth trying. The data flush fix is mentioned here: https://www.letscontrolit.com/forum/viewtopic.php...

ThomasB

I don't understand why you need to count [VAR#1]-[VAR#3] The result (stored in VAR#2) will be greater than zero when new pulse counts have occurred. why [VAR#2] needs to be bigger then 0 ? Because when new counts occur, the VAR#2 value will be 1 or greater. This triggers the publish, otherwise the ...

ThomasB

When I disconnect the Sensor, DeepSleep and wake up works as expected. If the Sensor is connected, the D1 never wakes up again. I don't use the HC-SR04 module. But from your comments I suggest rechecking the logic level shifting circuitry; Confirm that the Echo signal's logic high voltage does not ...

ThomasB

So I turned off oversampling on this "fatal" device and now it doesn't hang. In fact, I don't need oversampling for anything. But I think it might be a problem for others. Is it issue or not? If so i move topic to github. This sounds like it should be reported as a github issue. Especiall...

ThomasB

I suggest reviewing the debug log messages to find more details about the mystery MQTT messages. Perhaps something in there will provide additional clues about why MQTT publish is activated. FWIW, if your MQTT broker is running with a persistence service then ESPEasy's MQTT reconnects will include p...

ThomasB

Yes, but with this solution (when the jumper is set to trigger low) you have a voltage of 5V at the relay module input.

That would indeed be a problem. The transistor and magic dust is going to be needed after all.

- Thomas

ThomasB

I agree that there are many solutions, its all personal preference. That's one of the attractions to DiY projects. I'll end my chatter with one last idea. For convenience, a cheap $1 relay module with active low control can be used. For example: https://ebay.to/2TsKle0 Set the relay's logic control ...

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