1.0.10 • Published 3 years ago
node-red-contrib-redplc-rpi-gpio v1.0.10
node-red-contrib-redplc-rpigpio
Node-Red node for Raspberry Pi gpio.
Node Features
- Each gpio pin can be set as input or output
- Shows alternate function for pin if not set
- Add pulldown or pullup resistor to input
- Set output to active high (source) or active low (sink)
Install
For using with Ladder-Logic install redPlc nodes
For using with other nodes, install module nodes
Install with Node-Red Palette Manager or run npm command:
cd ~/.node-red
npm install node-red-contrib-redplc-rpi-gpioUsage
Update is triggered by redPlc cpu node or module-update node This node reads/writes from/to Node-Red global variables This node works only on Raspberry Pi with Raspberry Pi OS For prevent malfunction, check with raspi-config if pins set as I2C, SPI or UART
GPIO modes
- --: Pin is untouched.
- input: Floating input. Must connect to +3.3V or ground.
- input-pulldown: Input with pulldown resistor. True if connected to +3.3V.
- input-pullup: Input with pullup resistor. True if connected to ground.
- output: Output. Is connected to +3.3V on true (source).
- output-activelow: Output active low. Is connected to ground on true (sink).
I/O Mapping
| Bit | Funct. | Pin | Pin | Funct. | Bit |
|---|---|---|---|---|---|
| 3V3 | 1 | 2 | 5V | ||
| 2 | GPIO02 | 3 | 4 | 5V | |
| 3 | GPIO03 | 5 | 6 | GND | |
| 4 | GPIO04 | 7 | 8 | GPIO14 | 14 |
| GND | 9 | 10 | GPIO15 | 15 | |
| 17 | GPIO17 | 11 | 12 | GPIO18 | 18 |
| 27 | GPIO27 | 13 | 14 | GND | |
| 22 | GPIO22 | 15 | 16 | GPIO23 | 23 |
| 3V3 | 17 | 18 | GPIO24 | 24 | |
| 10 | GPIO10 | 19 | 20 | GND | |
| 9 | GPIO09 | 21 | 22 | GPIO25 | 25 |
| 11 | GPIO11 | 23 | 24 | GPIO08 | 8 |
| GND | 25 | 26 | GPIO07 | 7 | |
| 27 | 28 | ||||
| 5 | GPIO05 | 29 | 30 | GND | |
| 6 | GPIO06 | 31 | 32 | GPIO12 | 12 |
| 13 | GPIO13 | 33 | 34 | GND | |
| 19 | GPIO19 | 35 | 36 | GPIO16 | 15 |
| 26 | GPIO26 | 37 | 38 | GPIO20 | 20 |
| GND | 39 | 40 | GPIO21 | 21 |
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