Difference between revisions of "3-CH Relay for Jetson Nano"

From Waveshare Wiki
Jump to: navigation, search
m (Text replace - "Service00" to "Service02")
m (Text replacement - "{{#urlget:amazon|default}}=display" to "{{#ifeq: {{#urlget:amazon|0}}|{{#urlget:Amazon|0}}| default|}}=display")
Line 9: Line 9:
 
|category=[[:Category:Modules|Modules]], [[:Category:Jetson Nano|Jetson Nano]]
 
|category=[[:Category:Modules|Modules]], [[:Category:Jetson Nano|Jetson Nano]]
 
|brand=Waveshare
 
|brand=Waveshare
|{{#urlget:amazon|default}}=display
+
|{{#ifeq: {{#urlget:amazon|0}}|{{#urlget:Amazon|0}}| default|}}=display
 
|website_cn=[https://www.waveshare.net/shop/3-CH-Relay-for-Jetson-Nano.htm 官方中文站点]
 
|website_cn=[https://www.waveshare.net/shop/3-CH-Relay-for-Jetson-Nano.htm 官方中文站点]
 
|website_en=[https://www.waveshare.com/3-ch-relay-for-jetson-nano.htm Waveshare website]
 
|website_en=[https://www.waveshare.com/3-ch-relay-for-jetson-nano.htm Waveshare website]
Line 19: Line 19:
 
== Introduction ==
 
== Introduction ==
 
Quality 3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation
 
Quality 3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation
{{Amazon|{{#urlget:amazon|default}}=display
+
{{Amazon|{{#ifeq: {{#urlget:amazon|0}}|{{#urlget:Amazon|0}}| default|}}=display
 
|More = [https://www.waveshare.com/3-ch-relay-for-jetson-nano.htm More]}}
 
|More = [https://www.waveshare.com/3-ch-relay-for-jetson-nano.htm More]}}
 
==Featires==
 
==Featires==

Revision as of 10:56, 12 May 2022


3-CH Relay for Jetson Nano
3-CH Relay for Jetson Nano
{{{name2}}}

{{{name3}}}

{{{name4}}}

{{{name5}}}

Introduction

Quality 3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation

More

Featires

  • Standard 40PIN GPIO header, directly pluggable onto the Jetson Nano
  • Incorporate quality relay component, max load: ≤5A 250V AC or ≤5A 30V DC
  • Optocoupler isolation, prevent interference from the high voltage circuitry
  • Indicators for monitoring the relay operating status
  • Control pins of relays are configurable via jumpers
  • Acrylic bottom panel, isolating the Jetson Nano from the relay expansion board

Pinout

3-CH-Relay-for-Jetson-Nano-details-inter.jpg

Pins

The pins which are used for cotnrolling the channle of Relay are listed :

Channel BCM Description
CH1 P21/P16 Channel 1
CH2 P20/P19 Channel 2
CH3 P26/P13 Channel 3

【Note】The silk printing of PCB is based on BCM libraries.

Jumpers

Relay_JMP is a relay control pin selection jumper. When the jumper caps are connected, you can use Raspberry Pi to control the relays.
For example: If you want to stack A and B, then: the jumper caps of board A should be placed at P21, P20, and P26; the jumper caps of board B should be placed at P16, P19, and P13.

Use with Jetson Nano

Examples

Download Demo Codes

Open a terminal, download the demo codes, and unzip it.

sudo apt-get install p7zip
wget https://files.waveshare.com/upload/f/f8/3-ch_Realy_for_jetsonnano.7z
7zr x 3-ch_Realy_for_jetsonnano.7z -r -o./3-ch_Realy_for_jetsonnano
cd 3-ch_Realy_for_jetsonnano

Testing

Hardware configuration: set the jumpers on D21, D20, and D26 (default setting). Go to the directory 3-ch_Realy_for_jetsonnano and run the following commands:

sudo python test.py

Expect result: The Relay channels onboard are toggled and the LEDs indicate according to the status of the channel. You can press Ctrl+C to stop.

Web Control

The example uses the Python Web framework to control the Relay board.
Open a terminal and run the following commands:

sudo apt-get install python-bottle
cd python-bottle
sudo python main.py

Open a Chrome browser, and go to page [IP of Jetson nano ]:8080.
for example: 192.168.1.11:8080
Then you can click the icon on the Webpage to troggle the relay.

Document

Demo Codes


FAQ