The NanoPi Fire3 is a 7.5cm x 4cm Single Board Computer (SBC) which hosts a 1.4GHz Octa-Core Cortex-A53 with 1GB DDR3 RAM, with its CPU being a Samsung S56818 SoC. The Fire3 has a CMOS interface to support cameras, 40-Pin GPIO, MicroHDMI, RGB LCD Connector, and Gbps Ethernet.
It can run FriendlyCore, Debian, Android and Armbian.
Given it is only slightly larger than a Raspberry Pi Zero but hosts a 1.4GHz 8-core CPU, it's one of the more powerful small "Raspberry Pi compatible" SBCs available. As for true compatibility, see below.
The Fire3 has been tested by the NZPRG using the Armbian and Ubuntu operating systems. We recommend Armbian.
Note that when using Armbian, the armbian-config utility can be used to set most system configuration, including a static IP address.
The GPIO pins are configured differently to the Raspberry Pi so that Pi hats and devices that connect directly to the GPIO pins won't necessarily work (notably I²C devices). This can be worked around, see below under Fire3 GPIO Pinout.
While it claims to be, the Fire3's GPIO is actually not compatible with the Raspberry Pi, notably the I²C bus is different. Most I²C software on the Pi uses pins 3 and 5, which are assigned to I²C bus #1, whereas on the Fire3 those two pins are assigned to bus #0.
On the Fire 3 I²C Bus #1's SDA and SCL pins are pins 27 and 28 respectively rather than pins 3 and 5 as on the Raspberry Pi, so if you get your 3.3v and ground from somewhere on the GPIO bus and SDA and SCL from pins 27 and 28 you can use Pi I²C devices without resorting to altering Python library code (as most seem hard-coded on bus 1, a generally safe assumption).
|Pin #||Name||Pin #||Name|