Arduino is a great hardware for a lot of reason: easy to use, difficulto to break, it is a very solid 5-Volt board.

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After months of esp8266 experimentation, I “just” discovered this little chip has also a I2S Audio digital interface. To discover it you must install the Arduino IDE adapter and code directly in C++ (brr, ok not a breeze but not boring like Java :)

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Qualche mese fa avevo sviluppato una applicazione IoT per misurare la temperatura e spedire i dati ad una coda mqtt. Poi c’era uns server che collezionava i dati. Totale: tre server, con tre punti di fallimento ma architettura molto “cool”

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UPDATED and BUGFIXED!

MicroPython Repl command line is very nice, because you can telnet to the chip and read-and-evaluate python code. It is a great way of learning embedded IoT. The bad thing you cannot copy file while it is running, so experimenting get bad.

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Esp8266 is the super cheap chip which can run Micropython. You can buy it on Amazon for as little as €8 or less, and as little as $5 or less on Bangood/AliExpress.

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This is a VGA library for ESP8266. To use this library you need only 1 resistor and one DSUB15 connector. VGA signal generation based on https://github.com/hchunhui/esp-vga (thanks for your awesome works). [....]

The library implement a 512x480px framebuffer with 1bpp, where each pixel is stored as a single bit. The framebuffer is stored inside RAM and require 30720 bytes.

https://github.com/smaffer/espvgax

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