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--- admin:samba [2025/04/20 16:03] – rjversluis
+++ admin:samba [2025/05/11 21:28] (current) – [Shell script] rjversluis
@@ Line 1: / Line 1: @@
-======Samba======
+======NASpi======
-{{:admin:naspi.png?480}}\\
+{{:admin:naspi:naspi-20250511.jpg?320}} {{:admin:naspi.png?480}}\\
  \\
@@ Line 116: / Line 115: @@
+ \\
+=====Fan=====
+==== Install pigpiod====
+<code bash>sudo apt install pigpio</code>
+===Start daemon===
+<code bash>sudo systemctl start pigpiod</code>
+===Autostart deamon===
+<code bash>sudo systemctl enable pigpiod</code>
+====Shell script====
+Using GPIO4, header pin 7, for the 100Hz PWM.\\
+<code bash>
+#!/bin/bash
+while true
+do
+  TEMP=$(cat /sys/class/thermal/thermal_zone0/temp)
+  RV=$(pigs pfs 4 100)
+  PWM=0
+  if (( $TEMP > 45000))
+  then
+    PWM=75
+  fi
+  if (( $TEMP > 50000))
+  then
+    PWM=125
+  fi
+  if (( $TEMP > 55000))
+  then
+    PWM=175
+  fi
+  if (( $TEMP > 60000))
+  then
+    PWM=225
+  fi
+  echo temp=$TEMP pwm=$PWM
+  pigs p 4 $PWM
+  sleep 10
+done
+</code>
+====Startup at reboot====
+crontab -e
+<code bash>@reboot /home/pi/fan.sh&</code>
+====Connecting the Fan====
+<code>
+FET BS170 connection:
+----------------------------------------
+(GND) Source
+(GPIO4) Gate
+(+5V) Fan red wire
+Fan black wire to FET Drain
+A resistor of 47k between GND and FET Gate will shutoff the fan in case the GPIO is in an undefined state.\\
+</code>
+{{:admin:naspi:naspi-fan.jpg?0x300}}{{?admin:naspi:rpi-fan.png?0x300}}\\
+ \\
+=====3D====
+====OpenSCAD====
+SSDBox and rpi4-box:
+  * https://gitlab.com/rocrail/rocrail3d/-/tree/master/RPi?ref_type=heads
  \\
 =====Links=====