How to control the speed of fan in Argon ONE (v2) Pi 4 case on Debian 64-bit?

1. First, I installed curl and wget, both of which the original script seemed to require.

2. Then I ran the script with:

   curl https://download.argon40.com/argon1.sh | bash 

   It might have been unnecessary, but it also installed a bunch of stuff, presumably needed for operation.

3. According to the instructions on this GitHub page, I enabled the following two modules:

   echo i2c-bcm2835 >> /etc/modules-load.d/modules.conf echo i2c-dev >> /etc/modules-load.d/modules.conf 

4. Rebooted, and went on testing while leaving the original Argon script installed (possibly to play with it later on):

   i2cset -y 3 0x01a 0x00 # fan stop i2cset -y 3 0x01a 0x64 # fan full 

I also wrote a tiny POSIX shell script to prettify and output the current temperature of Pi's CPU:

#!/bin/sh # Show temperature of this Pi's CPU in green/red color. set -o nounset -o errexit # read the raw CPU temperature value, i.e. integer # multiplied by 1000 to accomodate 3 decimal spaces cpu_temp_raw=$( cat /sys/class/thermal/thermal_zone0/temp ) # divide the raw value by 1000, and cut the decimal places for only one cpu_temp_processed=$( echo "scale=1; $cpu_temp_raw / 1000" | bc ) # choose color for the output if [ "$cpu_temp_raw" -lt 40000 ]; then # bright green output_color=$( tput setaf 2 ) else # bright red output_color=$( tput setaf 1 ) fi # show the output in bold and in the above color tput bold; echo "CPU Temperature: $output_color$cpu_temp_processed"; tput sgr0 

The script above you may copy/modify as you please. Being its name pi-temp, you could easily monitor temperature e.g. every 10 seconds with:

while true; do ./pi-temp && sleep 10s; done 

Image for the words ;)