Plug and Play Node-RED nodes for a Keyestudio model KS0212 Raspberry Pi Relay Shield
node-red-contrib-keyestudio-relay-shield-ks0212
=====================
A set of Node-RED nodes to control the four relays on a
Keyestudio KS0212 relay shield
using the RPi.GPIO python library that is part of Raspbian.
If you need more generic control of arbitrary GPIO pins, perhaps
for a different relay shield, then consider the
node-red-node-pi-gpio node.
This node is based upon node-red-node-pi-gpio and provides plug and play use
of the relays on the shield.
Simply plug in the shield, install this Node-RED node, the relays just work
with no configuration required.
See the wiki for more details.
You can watch the Youtube video describing how to set up the board:
https://youtu.be/VkkeTJV-4gc
Either use the Node-RED Menu - Manage Palette option to install, or run the following
command in your Node-RED user directory - typically ~/.node-red
npm i node-red-contrib-keyestudio-relay-shield-ks0212
The python library may also work with other distros running on
a Pi (like Ubuntu or Debian) - you will need to install the PIGPIO
package and run the following commands in order to gain full access to
the GPIO pins as this ability is not part of the default distro.
This is NOT necessary on Raspbian.
sudo apt-get install python-pip python-dev
sudo pip install RPi.GPIO
sudo addgroup gpio
sudo chown root:gpio /dev/gpiomem
sudo adduser $USER gpio
echo 'KERNEL=="gpiomem", NAME="%k", GROUP="gpio", MODE="0660"' | sudo tee /etc/udev/rules.d/45-gpio.rules
sudo udevadm control --reload-rules && sudo udevadm trigger
Here is a link to the Youtube video describing how to use the software:
https://youtu.be/iC77coWWsT0
Also you might want to watch the Youtube video showing electronics test
bench performance of the hardware:
https://youtu.be/5Al1RFTqQQM
#### Input
- msg.payload - boolean | number | string
msg.payload containing String set, String true, String T, String H,
String on, String 1, Boolean T, or a Numerical 1 will turn the relay on.
msg.payload of any other content will turn the relay off.
Please consider becoming a patron of Spring City Solutions LLC
Your support directly funds the development of new drivers
and nodes for Node-RED.
For the latest news, detailed daily dev logs are posted on
the Patreon page.
https://www.patreon.com/springcitysolutions_nodered
Hardware Links:
Board Manufacturer Store:
https://www.keyestudio.com/keyestudio-rpi-4channel-relay-5v-shield-for-raspberry-pi-ce-certification-p0475-p0475.html
Board Manufacturer Wiki:
https://wiki.keyestudio.com/index.php/KS0212_keyestudio_RPI_4-channel_Relay_Shield
Links for the Songle SRD-05VDC-SL-C relay used on the board:
http://www.songlerelay.com/Product_show_id_539.htm
http://www.songlerelay.com/Public/Uploads/20161104/581c81ac16e36.pdf
Spring City Solutions Links:
Spring City Solutions Node-RED project page:
https://www.springcitysolutions.com/nodered
Spring City Solutions page for this node:
https://www.springcitysolutions.com/nodered-keyestudio-relay-shield
Spring City Solutions Node-RED project email:
nodered@springcitysolutions.com
Spring City Solutions Gitlab for this node:
https://gitlab.com/SpringCitySolutionsLLC/keyestudio-relay-shield-ks0212
Patreon Page:
https://www.patreon.com/springcitysolutions_nodered
Software Links:
Spring City Solutions Gitlab for this node:
https://gitlab.com/SpringCitySolutionsLLC/keyestudio-relay-shield-ks0212
npmjs for this node:
https://npmjs.org/package/node-red-contrib-keyestudio-relay-shield-ks0212
Node-RED flows for this node:
https://flows.nodered.org/node/node-red-contrib-keyestudio-relay-shield-ks0212
Documentation Links:
Gitlab wiki for this node (the master copy of list of links is here):
https://gitlab.com/SpringCitySolutionsLLC/keyestudio-relay-shield-ks0212/-/wikis/home
Youtube video "How to set up":
https://youtu.be/VkkeTJV-4gc
Youtube video "How to use":
https://youtu.be/iC77coWWsT0
Youtube video "Testing Results":
https://youtu.be/5Al1RFTqQQM
KEYESTUDIO is a registered trademark of Shenzhen KEYES DIY Robot co., Ltd.
Raspberry Pi is a trademark of Raspberry Pi Trading
Node-RED and node.js are a trademark of the OpenJS Foundation in the United States
Python is a registered trademark of the Python Software Foundation.
Songle is a trademark of Zhejiang Songle Machinery Co., Ltd. Wenling City,Zhejiang CHINA
Peakmeter is a trademark of Shenzhen New Huayi Instrument Co., Ltd.
Rigol is a trademark of RIGOL TECHNOLOGIES CO., LTD.
"All trademarks are property of their respective owners"
Majority of code Copyright (c) 2020-2021 Spring City Solutions LLC and other
contributors and licensed under the Apache License, Version 2.0
NRGPIO.PY Copyright JS Foundation and other contributors and licensed under Apache
License, Version 2.0
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