# Remote I/O Error with Sequent SmartFan
**URL:** https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547
**Category:** General
**Created:** [16 July 2024 18:42 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547 "2024-07-16T18:42:38Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@txrocks](https://discourse.nodered.org/u/txrocks)
#### Post date: [16 July 2024 18:42 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547/1 "2024-07-16T18:42:38Z")
Hello Everyone,
I am just getting rolling with Node-Red. I got some Sequent 16 I/O boards and relay boards along with the Fan.
I can get the fan to run with the command line. I have a node with the fan on the palette and have injected a numerical value to the node which it should run at that value.
I do have i2C enabled in raspi-config, and remote IO disabled (which I was told that it could interfere)
I have installed the I2C from fivdi I will try the software version tonight
Could I have some permissions not enabled that are blocking it somewhere ?
Thanks!!
This is the start of my Smart RV project.
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### Author:  [@jbudd](https://discourse.nodered.org/u/jbudd)
#### Post date: [16 July 2024 19:12 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547/2 "2024-07-16T19:12:19Z")
Welcome to the forum @txrocks .
> [@txrocks](#):
>
> I got some Sequent 16 I/O boards and relay boards
Are you using these with a Raspberry Pi?
Exactly which Sequent board[s] do you have?
Which Raspberry Pi and Operating system?
> [@txrocks](#):
>
> I can get the fan to run with the command line.
What commands work to control the fan?
> [@txrocks](#):
>
> I have a node with the fan on the palette
What node is that?
Please show us a screen capture of your Node-red flow including any error messages you see.
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### Author:  [@txrocks](https://discourse.nodered.org/u/txrocks)
#### Post date: [16 July 2024 21:41 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547/4 "2024-07-16T21:41:40Z")
Raspberry PI 5 with Raspbian
Sequent boards
# Smart Fan HAT the Best Cooling Solution for Raspberry Pi
SKU: SM-I-008
# Sixteen Analog/Digital Inputs 8-Layer Stackable HAT for Raspberry Pi
SKU: SM-I-018
# Sixteen Relays 2A/24V 8-Layer Stackable HAT for Raspberry Pi
SKU: SM-I-013
I have not tried pulling the relay and IO board off and running the fan board only. (Do not know why i did not think of that until now). I am wondering after looking at all the DIP switches if something there is causing my issue. I have not had much time to try things so far. Really enjoying Node-Red so far.
In the screen shot I tried just injecting a numerical value as the input to the fan node is supposed to be a 0-100 numerical value for the input. In the fan block I can select what stack it is on. It is on the first one on top of the RPI which I thought would be 0. I have tried 1 and 2 just for the heck of it. I have restarted the RPI to see if there was a change not saved also that would resolve with a reboot.
I can control the fan from the CLI with "fan" command. I can set the speed, see what the fan power is, fan -h will bring up the full list of commands that are available.
> **[GitHub - SequentMicrosystems/SmartFan-rpi: Command line, python library and Node-Red node for...](https://github.com/SequentMicrosystems/SmartFan-rpi)**
>
> Command line, python library and Node-Red node for Smart Fan
I got the node from node-red-contrib-sm-sfan 1.0.1
> **[node-red-contrib-sm-sfan](https://flows.nodered.org/node/node-red-contrib-sm-sfan)**
>
> A Node-RED collection of nodes to control Sequent Microsystems Smart Fan
thank you!
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### Author:  [@jbudd](https://discourse.nodered.org/u/jbudd)
#### Post date: [16 July 2024 22:58 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547/5 "2024-07-16T22:58:47Z")
Since you say you can control the fan from the command line, it's probably worth testing if the same commands work from Node-red using the exec node.
Make sure that you supply the full path for the command.
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### Author:  [@txrocks](https://discourse.nodered.org/u/txrocks)
#### Post date: [16 July 2024 23:28 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547/6 "2024-07-16T23:28:12Z")
I was able to use inject and that works. I was able to run the fan to 100%
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [14 October 2024 23:28 UTC](https://discourse.nodered.org/t/remote-i-o-error-with-sequent-smartfan/89547/7 "2024-10-14T23:28:31Z")
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