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# MangoPI MQ Pro Device Trees for Bluetooth and GPIO
### The MQ pro is a single core allwinner D1 64bit 1Ghz, 1Gb risc-v based Pi-Zero-alike.
This is a guide for enableing bluetooth and using the MangoPi MQ pro's IO capabilities when running Ubuntu 24.04.
This is a guide for enabling bluetooth and using the MangoPi MQ pro's IO capabilities when running Ubuntu 24.04.
`24.04` is a LTS+ release from Ubuntu, and should provide 5+ years of updates etc. As such it makes a very good choice for this board as a unattended headless device.
@@ -32,9 +32,8 @@ My MQ PRO is connected to a Waveshare LORA hat, I want to make it work but the d
# Device Trees
TODO: general explanation,
My pre-compiled device-trees are in the [here](./precompiled-trees).
- I still need to firm up and document how to deploy them!
- I still need to work out how to make this all permanent and able to survive a kernel upgrade.
My pre-compiled device-trees are in the [here](./precompiled-trees), along with install notes.
- I may modify this in the future as I learn how to handle kernel upgrades properly, my current install method is probably sub-optimal. But it should work.
## Roll Your Own Device Tree
Hopefully you can find what you want in the precompiled trees, or use the vanilla tree and dynamically create your devices on it via PinCTL.
@@ -47,6 +46,9 @@ You need one of the new device trees provided (*except the original Nezha one*)
Once that is in place you still need the correct firmware for this particular device, a copy of this is in the [bluetooth firmware](./bt-fw) folder.
* Copy the two firmware (`.bin`) files to `/usr/lib/firmware/` on the MQ PRO and reboot.
# Using GPIO
This is beyond the scope of this document, I use GPIOd to do this. But have also used direct pinmux control via the `/sys/class/gpio` tree.
# Allwinner D1 GPIO pins
The **D1** SOC runs at 3v3, and you must not exceed this on any of the GPIO pins. The drive current is also very limited, a maximum of 4mA on any individual pin, and 6mA total across a bank of pins (eg the 12 pins in the `*PB*` bank combined cannot draw more than 6mA!).