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www.technicallywizardry.com | ||
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hackaday.com
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| | | | | It can be jarring to see various sensors, smart switches, cameras, and other technology in a house built in the 1930s, like [Chris]'s was. But he still wanted presence detection so as to not ... | |
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jpreardon.com
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| | | | | [AI summary] The article details the installation of an auxiliary battery and safety lighting system on a BMW 1200GS motorcycle to provide additional power and visibility without draining the main battery. | |
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buzzert.net
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| | | | | [AI summary] The author details the process of building a DIY smart doorbell to avoid privacy issues associated with commercial smart doorbells like Ring, using a Raspberry Pi Zero, MQTT protocol, and local network infrastructure for full control and data privacy. | |
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tbspace.de
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| | | QO-100, also known as Es'hail-2 is a geostationary amateur radio satellite. It can be used by large parts of the world, including Europe, Africa, (parts of) South America and Asia. The satellite works as a linear transponder. It receives a specific range in the 2.4 GHz (13cm) band and sends it back to earth on 10 GHz (3cm). In order to generate such a 2.4 GHz signal and transmit it to the satellite conventional radio technology with transverters could be used. I chose a different route and planned a fully software-defined setup. This has many advantages: - Cost (PlutoSDRs can be bought for ~120?) - Low power consumption (laptop, SDR, amplifiers), ideal for portable usage - No SSB transceiver needed - Software DSP processing for very clean signals - I/Q sampl... | ||
