I had interesting problem. I wanted to add presence detection to the far end of my driveway but didnt want to run dedicated power to the location. I had 12 volt LED lights that I had already installed but didn't want to keep the lights on 24/7 just to run a pi Zero for the presence detection. So I …

[image] Poodlepapa: I don't know how to determine if its on battery or charger, if someone has a suggestion on that I'd like to know how to do it. I could then put in a safe power down after a set period of time if there is no charging. Thank you So you probably need some way to detect wheth…

I love those big battery packs, they are useful for so many things... [image] Poodlepapa: I don't know how to determine if its on battery or charger I may not have read everything correctly, but it seems to me that when your LEDs are on, it's on charger. When your LEDs are off, it's on the …

CaptClaude -The simple answer to your question is I can't figure out how to use ESP8266 reliably with MQTT, or wifi or anything else. I have drawer full of them! I started this hobbie about a year ago and only know how to use Nodered to program . Since a Pi Zero is only $10.00 I just use those and…

Thank you! dynamicdave I'll check that out.

[image] Poodlepapa: I can't figure out how to use ESP8266 reliably with MQTT, or wifi or anything else When I first tried the ESP8266, I had lots of problems as well. Until I purchased my first Wemos D1-Mini. My problem was power, I didn't know enough about reliable power supplies to be able …

The Wemos D1 Mini is probably the best ESP8266-based device to purchase as it has a CH340 programming chip on the board. This means it is dead-easy to flash an alternative firmware onto the D1. If you use one of these releases you'll find the 'zip' folder contains a 'flasher' so all you need to do …

IF you are running on windows. It doesn’t run on a Mac.

Thank you all for the help. I've been inspired to get into this again. I do have one more question. Lets say I get an Node MCU ESP866 up and working (I just was able to make it blink!) will I be able to program it via wifi at some point? or will it always require to be plugged in to alter the pro…

Once you have the Wemos D1 Mini up and running, you can alter the device's configuration, device drivers and the rules just by logging-in to the device to gain access to the web management panel. All my devices have fixed IP addresses, so all I do is type something like this into a web browser... 1…

Node-RED

Node-RED Forum

Great UPS for Raspberry Pi

Hardware

dynamicdave 11 October 2019 04:38 3

Have a look at this tutorial guide I wrote for a couple of my IoT students to explain how to use the INA219 voltage/current/power sensor, it might be useful in your situation.

Topic		Replies	Views
Wiring a smoke detector Hardware	86	6996	5 May 2020
Garden Monitoring and Watering Share Your Projects	15	4841	1 July 2020
Ways to power a large series of Wemos D1 mini boards Hardware	74	5602	9 April 2022
[off topic] Need advice getting started with D1/ESP/PI type "thing" projects Hardware	50	2802	12 July 2020
Question(Advice wanted): External "display and control unit" with pi zero Hardware	5	301	19 August 2022

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Great UPS for Raspberry Pi

Related topics