The Arduino MKR1000 is Arduino's entry into the IoT revolution. It has an Atmel ATSAMW25 system on a chip (48MHz ARM Cortex M0+ core, a low power WINC1500 2.4GHz 802.11 b/g/n Wi-Fi chip, and a Cryptochip). The embedded RTC runs at 32kHz.The 256kB flash and 32kB RAM provide plenty of working room. Like the Due and the Zero, the board operates at 3.3V only, so be careful what you connect to it. The input power may be as high as 5V.
The board has 8 digital I/O pins (some confusion exists, since 12 of them have PWM), 7 analog inputs with configurable word size (10/12-bit) one analog output with 10-bit word size. The PWM is 8- or 12-bit.
At $35 it is not a bargain, but it is Arduino, so the quality is there.
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