ESP32 Makes for World’s Worst Radio Station
We can say one thing for [bitluni]: the BOMs for his projects, like this ESP32 AM radio transmitter, are always on the low side. That’s because he leverages software to do jobs traditionally accomplished with hardware, always with instructive results.
In this case, the job at hand is creating an RF oscillator in the broadcast AM band and modulating some audio onto it. From his previous experience using an ESP32 to watch video on an oscilloscope, [bitluni] knew that the microcontroller’s DACs were up to the task of producing an 800-kHz signal, and he managed to produce a more-or-less sine …read more
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Amplitude has raised $30 million to fund what CEO Spenser Skates said is a mission of “helping product people build better products.” That’s not quite how Amplitude pitched itself initially, which was more about undercutting other analytics companies on price. Skates (pictured above with his co-founder Curtis Liu) said this is less a change in direction for the company than a… 
Amplitude announced this morning that it has raised $15 million in Series B funding.