# MangoPI MQ Pro (single core allwinner D1 risc-v based Pi Zero clone)
Investigating the MangoPi MQ pro's IO capabilities when running Ubuntu 23.10, instead of the Armbian image it 'shipped' with. This is using the 'AllWinner Nezha' image (compatible with the MQ pro) from here: https://ubuntu.com/download/risc-v

My unit is connected to a Waveshare LORA hat, I want to make it work.

### MQ Pro Pins:
This is derived from the schematics; showing the specific GPIO pin assignments on the MQ Pro GPIO connector

```text
looking down, Pin1 is top left, Pin40 bottom right

        3v3  -- o o -- 5v
    PG13 ------ o o -- 5v
    PG12 ------ o o -- GND
    PB7  ------ o o ------ PB8
         GND -- o o ------ PB9
    PD21 ------ o o ------ PB5
    PD22 ------ o o -- GND
    PB0  ------ o o ------ PB1
         3v3 -- o o ------ PD14
    PD12 ------ o o -- GND
    PD13 ------ o o ------ PC1
    PD11 ------ o o ------ PD10
         GND -- o o ------ PD15
    PE17 ------ o o ------ PE16
    PB10 ------ o o -- GND
    PB11 ------ o o ------ PC0
    PB12 ------ o o -- GND
    PB6  ------ o o ------ PB2
    PD17 ------ o o ------ PB3
         GND -- o o ------ PB4

```

Note that the spare onboard LED (activity?) is on `PD18`

## LoRA HAT pins
This is derived from the schematics; showing the 5 specific pins used (only)

```text
looking down, Pin1 is top left, Pin40 bottom right

        3v3  -- o o -- 5v
                o o -- 5v
                o o -- GND
    AUX  ------ o o ------ TX (set to USB serial via jumpers on HAT)
         GND -- o o ------ RX (set to USB serial via jumpers on HAT)
             -- o o --
    M1   ------ o o -- GND
    M0   ------ o o --
         3v3 -- o o --
             -- o o -- GND
             -- o o --
             -- o o --
         GND -- o o --
             -- o o --
             -- o o -- GND
             -- o o --
             -- o o -- GND
             -- o o --
             -- o o --
         GND -- o o --

```
The three fixed pins used by the HAT are 7,13 and 15.
These map as follows:
* `AUX` is on `PB7`
* `M1` is on `PD22`
* `M0` is on `PB0`

The Serial (TX,RX) is deselected via onboard jumpers, a secondary serial will be jumpered to the module TX/RX instead.

## References
#### MQ Pro
https://mangopi.org/mangopi_mqpro
#### Lora HAT
https://www.waveshare.com/wiki/SX1262_868M_LoRa_HAT