![]() ![]() The second set of GPIO pins provide a USB 2.0 breakout for additional connectivity. Basic GPIO control is possible, but if what you want to do is make LEDs flash and build cool robots, then stick with the Raspberry Pi. Using the Friendly ARM wiki as a reference, we learnt the GPIO reference for a pin and then used a few BASH commands to connect, setup and control a single pin. So how could we test the GPIO of the NanoPi NEO3? We used the BASH terminal to directly connect and use the GPIO. The same was true for a version of RPi.GPIO, a fork of the original Python library to use the Raspberry Pi GPIO. The installation process was not perfect and regularly told us that our board was not recognised. ![]() To use the GPIO we downloaded Friendlycore, a version of UbuntuCore 18.04 for the NanoPi boards and then compiled WiringPi, a C library and tool to work with the GPIO. So your HATs, even the best Raspberry Pi HATs, will have to stay with your Raspberry Pi. But this GPIO is not directly compatible with Raspberry Pi addo-ns. The NanoPi NEO3 features a 26 pin GPIO that may look similar to that used with the original Raspberry Pi, and offer a similar pinout for I2C, SPI, UART I2S and digital IO.
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