InaMORata 2.0

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In 2024, I redesigned the [[InaMORAta]] to use 5v ARGB fans (the previous design used 12v RGB fans). I also significantly simplified the electronics.

[[File:PXL 20220916 080028177.jpg|right|thumb|the completed apparatus]]

In 2024, I redesigned the [[InaMORAta]] to use 5v ARGB fans (the previous design used 12v RGB fans). I also significantly simplified the electronics. We get a single tachometer signal from the 9x fans, and a tachometer signal from both pumps. Similarly, we control all 9x fans with a single PWM signal, and control the pumps independently with two more. We control the fans' LEDs as three series of 36 LEDs each, each corresponding to a row of three fans. We measure and report ambient temperature. A distinct sensor provides visual display of speed and coolant temperature. The total cost runs between $600 and $800, and is easily capable of cooling a remote 2kW machine. It's by no means a great value, but watercooling rarely is.

Inputs to the inaMORata are a 12V AC adapter and a G¼" tube of hot coolant. Outputs are heat, light, and a G¼" tube of cooled coolant. Additionally, MQTT over IP over WiFi provides control and report.

==Components==

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** 3x Molex 4-pin fan headers

** DS18B20 digital thermistor

* USB-C header with pigtails

* G¼" flow sensor with visual display (optional)

You'll need a hot air gun and a soldering iron (plus whatever you use to assemble the Mo-Ra, and attach things to it).

The flow sensor is optional, but provides local visual display of coolant temperature and flow. It's about $50; I like the [https://www.amazon.com/DIYhz-displaydigital-Thermometer-Temperature-Indicator DIYhz]. If you get it, power it off one of the CODI6's fan headers. These don't tend to have any digital output, so don't bother trying to sample a tach from it (there's only two wires: 12V and ground).

==Microelectronics==

* Solder the ESP32 onto the perfboard

* Solder the 3x Molex 4-pin fan headers onto the perfboard

** It's best to solder all 4 pins, but you '''must''' solder the last two

* Wire the 3V3 and GND pins of the ESP32 to the right side's +/- channels

===For PWM speed control===

* Wire the fourth pin (PWM) of each fan header to pins 33, 32, and 25 on the ESP32

===For tachometry===

* Wire the third pin (tach) of each fan header to the other side of the perfboard

* Solder a 10kΩ resistor to the + channel to the tach pin's row

* Solder a 3.3kΩ resistor from each tach pin's row down to the next row

* Solder a 0.1nF capacitor from each of these rows to the - channel

* Wire these same rows to pins 5, 22, and 23 on the ESP32

===For ambient temp sensing===

* Solder a 4.7kΩ resistor from the + channel to some row

* Wire this row to pin 4 on the ESP32

* Solder the yellow (data) wire of the DS18B20 to this same row

* Solder the black (ground) wire of the DS18B20 to the - channel

* Solder the black (ground) wire of the DS18B20 to the + channel

==Power==

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* On/off switch takes 12V to SATA and buck converter

** The two sets of three wires are connected with two heatshrink solder tubes

* Buck converter takes 5V to SATA

* Buck converter takes 5V to SATA and USB-C pigtails

** The two sets of ~~two~~ wires are connected with two heatshrink solder tubes

** The two sets of three wires are connected with two heatshrink solder tubes

* USB-C takes 5V to ESP32

* SATA takes 12V+5V to SATA splitter

* SATA splitter takes 12V+5V to CODI6 + SATA splitter

* SATA splitter takes 12V to 2x pumps

* CODI6 takes 12V (via fan hookup) and 5V (via ARGB hookup) to 3x rightmost fans.

* CODI6 takes 12V (via fan hookup) and 5V (via ARGB hookup) to 3x rightmost fans

* 3x rightmost fans take 12V+5V to corresponding 3x middle fans.

* CODI6 takes 12V (via fan hookup) to flow sensor

* 3x middle fans takes 12V+5V to corresponding 3x leftmost fans.

* 3x rightmost fans take 12V+5V to corresponding 3x middle fans

* 3x middle fans takes 12V+5V to corresponding 3x leftmost fans

We don't need to expose the 5V to the pumps, but it doesn't hurt anything. The CODI6 has a 5-pin wire, where three pins (12V, 5V, ground) go to a SATA connector, and two pins (tach, pwm) go to a 4-hole Molex fan connector. This connector doesn't carry 12V or ground like a 4-wire Molex would.

At this point, we have three hookups unconnected: the three Molex 4-hole connectors coming off the pumps and CODI6. Each has a tach and PWM signal, and none are drawing power. Hook them up to the perfboard's Molex 4-pin headers.

InaMORata 2.0: Difference between revisions

Dank (talk | contribs)

@@ Line 1: / Line 1: @@
-In 2024, I redesigned the [[InaMORAta]] to use 5v ARGB fans (the previous design used 12v RGB fans). I also significantly simplified the electronics.
+[[File:PXL 20220916 080028177.jpg|right|thumb|the completed apparatus]]
+In 2024, I redesigned the [[InaMORAta]] to use 5v ARGB fans (the previous design used 12v RGB fans). I also significantly simplified the electronics. We get a single tachometer signal from the 9x fans, and a tachometer signal from both pumps. Similarly, we control all 9x fans with a single PWM signal, and control the pumps independently with two more. We control the fans' LEDs as three series of 36 LEDs each, each corresponding to a row of three fans. We measure and report ambient temperature. A distinct sensor provides visual display of speed and coolant temperature. The total cost runs between $600 and $800, and is easily capable of cooling a remote 2kW machine. It's by no means a great value, but watercooling rarely is.
+Inputs to the inaMORata are a 12V AC adapter and a G¼" tube of hot coolant. Outputs are heat, light, and a G¼" tube of cooled coolant. Additionally, MQTT over IP over WiFi provides control and report.
 ==Components==
@@ Line 19: / Line 22: @@
 ** 3x Molex 4-pin fan headers
 ** DS18B20 digital thermistor
+* USB-C header with pigtails
+* G¼" flow sensor with visual display (optional)
 You'll need a hot air gun and a soldering iron (plus whatever you use to assemble the Mo-Ra, and attach things to it).
+The flow sensor is optional, but provides local visual display of coolant temperature and flow. It's about $50; I like the [https://www.amazon.com/DIYhz-displaydigital-Thermometer-Temperature-Indicator DIYhz]. If you get it, power it off one of the CODI6's fan headers. These don't tend to have any digital output, so don't bother trying to sample a tach from it (there's only two wires: 12V and ground).
+==Microelectronics==
+* Solder the ESP32 onto the perfboard
+* Solder the 3x Molex 4-pin fan headers onto the perfboard
+** It's best to solder all 4 pins, but you '''must''' solder the last two
+* Wire the 3V3 and GND pins of the ESP32 to the right side's +/- channels
+===For PWM speed control===
+* Wire the fourth pin (PWM) of each fan header to pins 33, 32, and 25 on the ESP32
+===For tachometry===
+* Wire the third pin (tach) of each fan header to the other side of the perfboard
+* Solder a 10kΩ resistor to the + channel to the tach pin's row
+* Solder a 3.3kΩ resistor from each tach pin's row down to the next row
+* Solder a 0.1nF capacitor from each of these rows to the - channel
+* Wire these same rows to pins 5, 22, and 23 on the ESP32
+===For ambient temp sensing===
+* Solder a 4.7kΩ resistor from the + channel to some row
+* Wire this row to pin 4 on the ESP32
+* Solder the yellow (data) wire of the DS18B20 to this same row
+* Solder the black (ground) wire of the DS18B20 to the - channel
+* Solder the black (ground) wire of the DS18B20 to the + channel
 ==Power==
@@ Line 28: / Line 56: @@
 * On/off switch takes 12V to SATA and buck converter
 ** The two sets of three wires are connected with two heatshrink solder tubes
-* Buck converter takes 5V to SATA
+* Buck converter takes 5V to SATA and USB-C pigtails
-** The two sets of two wires are connected with two heatshrink solder tubes
+** The two sets of three wires are connected with two heatshrink solder tubes
+* USB-C takes 5V to ESP32
 * SATA takes 12V+5V to SATA splitter
 * SATA splitter takes 12V+5V to CODI6 + SATA splitter
 * SATA splitter takes 12V to 2x pumps
-* CODI6 takes 12V (via fan hookup) and 5V (via ARGB hookup) to 3x rightmost fans.
+* CODI6 takes 12V (via fan hookup) and 5V (via ARGB hookup) to 3x rightmost fans
-* 3x rightmost fans take 12V+5V to corresponding 3x middle fans.
+* CODI6 takes 12V (via fan hookup) to flow sensor
-* 3x middle fans takes 12V+5V to corresponding 3x leftmost fans.
+* 3x rightmost fans take 12V+5V to corresponding 3x middle fans
+* 3x middle fans takes 12V+5V to corresponding 3x leftmost fans
 We don't need to expose the 5V to the pumps, but it doesn't hurt anything. The CODI6 has a 5-pin wire, where three pins (12V, 5V, ground) go to a SATA connector, and two pins (tach, pwm) go to a 4-hole Molex fan connector. This connector doesn't carry 12V or ground like a 4-wire Molex would.
 At this point, we have three hookups unconnected: the three Molex 4-hole connectors coming off the pumps and CODI6. Each has a tach and PWM signal, and none are drawing power. Hook them up to the perfboard's Molex 4-pin headers.