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* mraa-gpio-din: add iot2050 board This patch adds iot2050 board in possible list of boards. Signed-off-by: zengchao <chao.zeng@siemens.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com> * mraa-gpio-din: add cleanup on close Required as nodejs will only lazily delete the node objects, and we may race with the next user requesting the resources. ISR thread release. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com> * mraa-gpio-din: extend GPIO lines Signed-off-by: zengchao <chao.zeng@siemens.com> Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com> * mraa-gpio-din: add configurable GPIO mode for DIN GPIO mode wasn't set correctly, it was set from Pinmuxes modes instead of GPIO. Add way to control GPIO modes on DINs from Node-RED with possible values from mraa : Strong, Hiz, Pull-down, Pull-up. Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com> * mraa-gpio-din: add support for initial message from digital input This allows to send out an initial message with the current digital pin state on startup, simplifying initializations of certain flows. Based on siemens/meta-iot2000@5fc2bbe patch 0003. Signed-off-by: Ivan Mikhaylov <ivan.mikhaylov@siemens.com> |
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| .. | ||
| LICENSE | ||
| mraa-gpio-ain.html | ||
| mraa-gpio-ain.js | ||
| mraa-gpio-din.html | ||
| mraa-gpio-din.js | ||
| mraa-gpio-dout.html | ||
| mraa-gpio-dout.js | ||
| mraa-gpio-pwm.html | ||
| mraa-gpio-pwm.js | ||
| package.json | ||
| README.md | ||
node-red-node-intel-gpio
A Node-RED node to talk to an Intel Galileo or Edison running mraa.
Install
Run the following command in your Node-RED user directory - typically ~/.node-red
npm i node-red-node-intel-gpio
Usage
The Galileo or Edison must already be running Linux, and have Node-RED installed.
See the Intel Downloads for hardware / downloads for your particular board.
Ensure the latest version of mraa libraries are installed: (version 1.5 as of Sept 2015)
echo "src mraa-upm http://iotdk.intel.com/repos/1.5/intelgalactic" > /etc/opkg/mraa-upm.conf
opkg update
opkg upgrade
NOTE : This node assumes that the mraa npm is already installed globally - as it is on the Galileo and Edison boards.
If you do need to install Node-RED, you can do this as follows from the home directory of the root user
npm install -g --unsafe-perm node-red
mkdir .node-red
cd .node-red
npm install node-red-node-intel-gpio
Analogue Input Node
Monitors the selected pin for changes. It outputs on a change of value. As analogue inputs are continuously changing you can set the sample rate in ms from 20 to 65535.
Digital Input Node
Monitors the selected pin for changes. It only outputs on a change of value.
Digital Output Node
Sets the selected digital pin output high or low depending on the value of
msg.payload - expects a number or string 0 or 1.
Pulse Width Modulation (PWM) Node
The msg.payload should contain a floating point number value
between 0 (off) and 1 (fully on), or a string representation thereof.
You can set the overall period (mS) in the edit dialogue.
For servo control set the period to 20mS and vary the input between 0.05 and 0.10,
0.05 = 5% of 20mS = 1mS
0.75 = 7.5% of 20mS = 1.5mS - typical servo centre point
0.10 = 10% of 20mS = 2mS
Example
Simple flow to blink Pin 13
...tbd