Comments on: ESP8266 Publishing DHT22 Readings to SQLite Database

By: Agum Muldani

Agum Muldani — Sat, 13 Jul 2024 14:25:17 +0000

Hi Rui,

That was great! But if i want to use Django as web server framework, where i write the code for MQTT?

Thanks

By: Peter Lutz

Peter Lutz — Sun, 14 Jan 2024 23:02:41 +0000

Installing Flask in a virtual environment is different than these instructions.
But following the Flask install website worked.

By: Ian Mawdsley

Ian Mawdsley — Wed, 20 Dec 2023 17:55:47 +0000

I have two esp8266’s connected this way and date is flowing into the .db and onto the web page, how can I get the “device name” to identify each controller rather than just having a static device name of “esp8266” any help would be greatly received . thanks

By: Thomas

Thomas — Fri, 08 Sep 2023 06:19:54 +0000

Hello,
i have also the problem:
“Attempting MQTT connection…failed, rc=5 try again in 5 seconds”
Mosquitto Broker is active, and the details is look like your tutorial, any ideas?
Thank you, your tutorial was really helpful!!

By: Terry

Terry — Sun, 06 Nov 2022 23:40:40 +0000

Excellent tutorial, thanks for your always great subjects. I did find a typo in the code where you translate the values to Fahrenheit, hic should be hif if I’m correct.
// Uncomment to compute temperature values in Fahrenheit
// float hif = dht.computeHeatIndex(f, h);
// static char temperatureTemp[7];
// dtostrf(hic, 6, 2, temperatureTemp);
should be this
// Uncomment to compute temperature values in Fahrenheit
// float hif = dht.computeHeatIndex(f, h);
// static char temperatureTemp[7];
// dtostrf(hif, 6, 2, temperatureTemp);

By: Sara Santos

Sara Santos — Mon, 11 Jul 2022 08:47:32 +0000

In reply to hoang Phi.

Hi.
Double-check your MQTT broker details and make sure your MQTT broker is running.
Regards,
Sara

By: hoang Phi

hoang Phi — Fri, 08 Jul 2022 05:11:32 +0000

I have followed your instructions. You have very detailed instructions. Thank you. But I got a small error, can you point it out to me. Thanks, again.
“Attempting MQTT connection…failed, rc=5 try again in 5 seconds”

By: dave

dave — Tue, 31 May 2022 09:57:10 +0000

Having loaded Mosquitto and Node-Red and having nothing but compatibility problems with software, cannot install sqlite for node-red for some reason….
please do two things.
#1, list the version of the software you are using.
#2, list how to find the version before installing.

By: miyu

miyu — Tue, 07 Sep 2021 08:22:06 +0000

Hi guys,
I have two problems with arduino and mqtt, that is “Attempting MQTT connection… Failed. rc=-4…” and “code 400, message Bad HTTP/0.9 request type…”
How can I fix it?

By: JONAH OKPE

JONAH OKPE — Fri, 27 Aug 2021 23:52:11 +0000

Great work, thank you so much.
Just one question, what if the DHT sensor is connected directly to the raspberry pi?
or another example is if you have to connect a GPS modeule directly to the Raspberry pi?

What will it look like? Does one have to go through all these processes or you will skip since you are not using the ESP8266?

Thanks once again for your great efforts