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Its footprint and pinout are mostly the same as the [[arduino uno|Uno]]. However, it features two independent UART serial streams (one USB and one on pins 0/1) and five user interrupt pins (0, 1, 2, 3, 7). The PWM pins are also shifted around slightly. | Its footprint and pinout are mostly the same as the [[arduino uno|Uno]]. However, it features two independent UART serial streams (one USB and one on pins 0/1) and five user interrupt pins (0, 1, 2, 3, 7). The PWM pins are also shifted around slightly. | ||
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+ | <WRAP center round tip 60%> | ||
+ | Pins 2 and 3 are SDA and SCL for I2C! | ||
+ | </ | ||
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+ | {{tag> |