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https://github.com/easytarget/MQ-Pro-IO.git
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refactor
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Owen
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2
.gitignore
vendored
2
.gitignore
vendored
@ -1 +1 @@
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dts/dtspp/*.dts*
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device-tree/dtspp/*.dts*
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85
README.md
85
README.md
@ -29,49 +29,68 @@ looking down, Pin1 is top left, Pin40 bottom right
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PB6 ------ o o ------ PB2
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PD17 ------ o o ------ PB3
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GND -- o o ------ PB4
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```
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Note that the spare onboard LED (activity?) is on `PD18`
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Note that the spare onboard LED (activity?) is on `PD18` [pwm2]
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## LoRA HAT pins
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This is derived from the schematics; showing the 5 specific pins used (only)
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## Default MQ-Pro mappings (as described in the schematic and other docs) looks like this:
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```text
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looking down, Pin1 is top left, Pin40 bottom right
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3v3 -- o o -- 5v
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o o -- 5v
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o o -- GND
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AUX ------ o o ------ TX (set to USB serial via jumpers on HAT)
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GND -- o o ------ RX (set to USB serial via jumpers on HAT)
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-- o o --
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M1 ------ o o -- GND
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M0 ------ o o --
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3v3 -- o o --
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-- o o -- GND
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-- o o --
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-- o o --
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GND -- o o --
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-- o o --
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-- o o -- GND
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-- o o --
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-- o o -- GND
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-- o o --
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-- o o --
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GND -- o o --
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i2c0 SDA PG13 ------ o o -- 5v
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i2c0 SDL PG12 ------ o o -- GND
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PB7 ------ o o ------ PB8 uart0 TX
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GND -- o o ------ PB9 uart0 RX
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PD21 ------ o o ------ PB5 i2s CLK [pwm0]
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PD22 ------ o o -- GND
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[pwm3] PB0 ------ o o ------ PB1 [pwm4]
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3v3 -- o o ------ PD14 spi1 HOLD
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spi1 MOSI PD12 ------ o o -- GND
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spi1 MISO PD13 ------ o o ------ PC1 uart2 RX
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spi1 SCLK PD11 ------ o o ------ PD10 spi1 CS
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GND -- o o ------ PD15 spi1 WS
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i2c3 SDA PE17 ------ o o ------ PE16 i2c3 SCL
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PB10 ------ o o -- GND
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PB11 ------ o o ------ PC0 uart2 TX
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PB12 ------ o o -- GND
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[pwm1] i2s FS PB6 ------ o o ------ PB2
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PD17 ------ o o ------ PB3 i2s DI0
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GND -- o o ------ PB4 i2s DO
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Note: I2C pins 2,5,27 and 28 (PG13, PG12, PE17 and PE16) have 10K pullup resistors to 3v3
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```
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The three fixed pins used by the HAT are 7,13 and 15.
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These map as follows:
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* `AUX` is on `PB7`
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* `M1` is on `PD22`
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* `M0` is on `PB0`
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The Serial (TX,RX) is deselected via onboard jumpers, a secondary serial will be jumpered to the module TX/RX instead.
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## Uart pins:
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The D1 has 6 internal UARTs and many pin mappings are possible on the GPIO connector:
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```text
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3v3 -- o o -- 5v
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UART1-RX PG13 ------ o o -- 5v
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UART1-TX PG12 ------ o o -- GND
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UART3-RX PB7 ------ o o ------ PB8 UART0-TX,UART1-TX
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GND -- o o ------ PB9 UART0-RX,UART1-RX
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UART1-TX PD21 ------ o o ------ PB5 UART5-RX
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UART1-RX PD22 ------ o o -- GND
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UART2-TX,UART0-TX PB0 ------ o o ------ PB1 UART0-RX,UART2-RX
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3v3 -- o o ------ PD14 UART3-CTS
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PD12 ------ o o -- GND
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UART3-RTS PD13 ------ o o ------ PC1 UART2-RX
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UART3-RX PD11 ------ o o ------ PD10 UART3-TX
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GND -- o o ------ PD15
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PE17 ------ o o ------ PE16
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UART1-RTS PB10 ------ o o -- GND
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UART1-CTS PB11 ------ o o ------ PC0 UART2-TX
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PB12 ------ o o -- GND
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UART5-TX PB6 ------ o o ------ PB2 UART4-TX
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PD17 ------ o o ------ PB3 UART4-RX
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GND -- o o ------ PB4 UART5-TX
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```
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Notes:
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- UART0 on gpio pins 8 and 10 (PB8 and PB9) is the used for the system console by default
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- UART1 is connected to the bluetooth device by default, this can be reconfigured onto the GPIO pins if bluetooth is not required.
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- UART1 and UART3 have flow control lines available
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## References
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Pin mappings come from the Allwinner D1 datasheet, Table 4-3 (see the 'references' folder in this repo for a copy)
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#### MQ Pro
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https://mangopi.org/mangopi_mqpro
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#### Lora HAT
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https://www.waveshare.com/wiki/SX1262_868M_LoRa_HAT
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39
waveshare_SX1268_LoRa_HAT/README.md
Normal file
39
waveshare_SX1268_LoRa_HAT/README.md
Normal file
@ -0,0 +1,39 @@
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# LoRA HAT pins
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This is derived from the schematics; showing the 5 specific pins used (only)
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```text
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looking down, Pin1 is top left, Pin40 bottom right
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3v3 -- o o -- 5v
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o o -- 5v
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o o -- GND
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AUX ------ o o ------ TX (set to USB serial via jumpers on HAT)
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GND -- o o ------ RX (set to USB serial via jumpers on HAT)
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-- o o --
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M1 ------ o o -- GND
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M0 ------ o o --
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3v3 -- o o --
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-- o o -- GND
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-- o o --
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-- o o --
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GND -- o o --
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-- o o --
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-- o o -- GND
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-- o o --
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-- o o -- GND
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-- o o --
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-- o o --
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GND -- o o --
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```
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The three fixed pins used by the HAT are 7,13 and 15.
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These map as follows:
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* `AUX` is on `PB7`
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* `M1` is on `PD22`
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* `M0` is on `PB0`
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The Serial (TX,RX) is deselected via onboard jumpers, a secondary serial will be jumpered to the module TX/RX instead.
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## References
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#### Lora HAT
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https://www.waveshare.com/wiki/SX1262_868M_LoRa_HAT
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