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A how-to on building cloud weather station with ESP32/ESP8266 @ Random Nerd Tutorials:
Build a cloud weather station dashboard to visualize your ESP32 or ESP8266 sensor readings from anywhere in the world. You’ll see your sensor data displayed on gauges and on a table. The ESP32 or ESP8266 will make an HTTP POST request to a PHP script to insert your data into a MySQL database.
See project details at randomnerdtutorials.com
Check out the video after the break.
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Matthew Millman has published a new build:
For a number of years now I’ve had a couple of high powered switching power supply units made by Power-One. They’re typically found in I.T. equipment and provide a single output rail of either 12 V or 48 V with a very high current rating. The other cool thing is that in the case of the 12 V model – the output voltage can be changed in software from 1 V to 12 V (12.45 V is the max). The 48 V model does not allow configuration of the output voltage frustratingly.
See the full project writeup on Matt’s Tech Pages.
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Liviu writes, “Recently I was made aware of the fidget cube. However the cube doesen’t seems to do anything so as a request from somebody, I decided to modify a bluetooth VR box controller and insert it in a cube.”
More details on Do It Yourself blog.
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KA7OEI writes:
In a previous post I described a simple circuit that provided a low-voltage cut-out that could be used in a battery-operated system – see the article “A latching low-voltage disconnect for 12 volt lead-acid and lithium batteries”. That circuit – intended mostly for lithium-based batteries – required manual intervention to “reset” the device, intended for those situations where you wanted to provide manual intervention in resetting the circuit to prevent causing harm to the battery – and maybe the gear connected to it.
This circuit is different from that described in the link above, intended mostly for lead-acid based systems where an automatic reconnect of the battery is required upon application of charge current.
More details on KA7OEI’s blog.
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Check out VU3JVX’s awesome uBITX scratch-built homebrew project.
See the full post on SolderSmoke blog.
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Andrew Garratt blogged about his MiniTiouner DATV receiver built:
The MiniTiouner uses free to download DVB-S receive and analysis software called “Minitioune” written by F6DZP. The Software is hosted on the VivaDATV forum. So I registered and downloaded the software.
More details on Radio Antics blog.