# Qwiic PC Fan Controller ## Description The Qwiic PC Fan Controller allows you easily control almost any PC fan over the Qwiic bus using the on board ATtiny microcontroller and control firmware. The control firmware monitors the tachometer output of the fan in order to implement PI Control over the fan speed, allowing you to set your desired speed in real units. ## Project Details - **Owner:** adrian95 - **Created:** 7/14/2022 - **Last Updated:** 11/12/2024 - **Visibility:** Public - **Stars:** 1 - **Forks:** 77 ## Key Components ### D1 — [BZT52C3V6S-7-F](https://www.flux.ai/adrian95/bzt52c3v6s-7-f~rr5.md) - Part Type: Diode - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Diodes%20PDFs/BZT52C2V0S-BZT52C39S.pdf - Manufacturer Name: Diodes Incorporated - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BZT52C3V6S-7-F **Pins:** - A [pin 2] - K [pin 1] ### D2 — [BZT52C3V6S-7-F](https://www.flux.ai/adrian95/bzt52c3v6s-7-f~rr5.md) - Manufacturer Name: Diodes Incorporated - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Diodes%20PDFs/BZT52C2V0S-BZT52C39S.pdf - Part Type: Diode - Manufacturer Part Number: BZT52C3V6S-7-F - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### F1 — [Fuse 1206-3216Metric](https://www.flux.ai/jecstronic/fuse-1206-3216metric~wgn.md) - Manufacturer Part Number: JFC1206-0750FS - Manufacturer Name: Shenzhen JDT Fuse - Current Rating: 750mA - Part Type: Fuse **Pins:** - P1 - P2 ### J1 — [BM04B-GHS-TBT(LF)(SN)(N)](https://www.flux.ai/adrian95/bm04b-ghs-tbtlfsnn~9n0.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eGH.pdf - Manufacturer Part Number: BM04B-GHS-TBT(LF)(SN)(N) **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] - PIN3 [pin 3] - PIN4 [pin 4] ### J2 — [BM04B-GHS-TBT(LF)(SN)(N)](https://www.flux.ai/adrian95/bm04b-ghs-tbtlfsnn~9n0.md) - Manufacturer Part Number: BM04B-GHS-TBT(LF)(SN)(N) - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eGH.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] - PIN3 [pin 3] - PIN4 [pin 4] ### J4 — [Pin Socket 01x04 2.00mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-200mm-vertical~4e6.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J5 — [Pin Header 01x02 2.00mm Vertical](https://www.flux.ai/adrian95/pin-header-01x02-200mm-vertical~tjb.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] ### J6 — [Pin Socket 01x04 2.00mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-200mm-vertical~4e6.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### LED — [LED 0603 (1608 Metric)](https://www.flux.ai/jharwinbarrozo/led-0603-1608-metric~yk.md) - Manufacturer Name: XINGLIGHT - Part Type: LED - Manufacturer Part Number: XL-1608SURC-06 **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [DMG2305UX-7](https://www.flux.ai/jecstronic/dmg2305ux-7~82c.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/DMG2305UX.pdf - Part Type: Transistor - Manufacturer Part Number: DMG2305UX-7 - Manufacturer Name: Diodes Incorporated **Pins:** - D - G - S ### Q2 — [2N7002PW,115](https://www.flux.ai/adrian95/2n7002pw115~ky0.md) - Manufacturer Name: Nexperia USA Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Nexperia/2N7002PW.pdf - Part Type: Transistor - Manufacturer Part Number: 2N7002PW,115 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — [2N7002PW,115](https://www.flux.ai/adrian95/2n7002pw115~ky0.md) - Part Type: Transistor - Manufacturer Part Number: 2N7002PW,115 - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Nexperia/2N7002PW.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Nexperia USA Inc. **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q7 — [DMG2305UX-7](https://www.flux.ai/jecstronic/dmg2305ux-7~82c.md) - Part Type: Transistor - Datasheet URL: https://www.diodes.com/assets/Datasheets/DMG2305UX.pdf - Manufacturer Part Number: DMG2305UX-7 - Manufacturer Name: Diodes Incorporated **Pins:** - D - G - S ### Q8 — [DUAL PNP PNP E1B1C2E2B2C1](https://www.flux.ai/adrian95/dual-pnp-pnp-e1b1c2e2b2c1~1f6.md) - Part Type: Transistor **Pins:** - B1 - B2 - C1 - C2 - E1 - E2 ### TP1 — [TestPoint THTPad D1.0mm Drill0.5mm](https://www.flux.ai/adrian95/testpoint-thtpad-d10mm-drill05mm~dwy.md) - Part Type: Connector **Pins:** - 1 ### TP2 — [TestPoint THTPad D1.0mm Drill0.5mm](https://www.flux.ai/adrian95/testpoint-thtpad-d10mm-drill05mm~dwy.md) - Part Type: Connector **Pins:** - 1 ### TP3 — [TestPoint THTPad D1.0mm Drill0.5mm](https://www.flux.ai/adrian95/testpoint-thtpad-d10mm-drill05mm~dwy.md) - Part Type: Connector **Pins:** - 1 ### TP4 — [TestPoint THTPad D1.0mm Drill0.5mm](https://www.flux.ai/adrian95/testpoint-thtpad-d10mm-drill05mm~dwy.md) - Part Type: Connector **Pins:** - 1 ### TP5 — [TestPoint THTPad D1.0mm Drill0.5mm](https://www.flux.ai/adrian95/testpoint-thtpad-d10mm-drill05mm~dwy.md) - Part Type: Connector **Pins:** - 1 ### TP6 — [TestPoint THTPad D1.0mm Drill0.5mm](https://www.flux.ai/adrian95/testpoint-thtpad-d10mm-drill05mm~dwy.md) - Part Type: Connector **Pins:** - 1 ### U1 — [ATTINY841-SSU](https://www.flux.ai/adrian95/attiny841-ssu~xgr.md) - Part Type: Microcontroller - Manufacturer Name: Microchip - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8495-8-bit-AVR-Microcontrollers-ATtiny441-ATtiny841_Datasheet-Summary.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ATTINY841-SSU **Pins:** - ~RESET~/PB3 [pin 4] - AREF/PA0 [pin 13] - GND [pin 14] - PA1 [pin 12] - PA2 [pin 11] - PA3 [pin 10] - PA4 [pin 9] - PA5 [pin 8] - PA6 [pin 7] - PA7 [pin 6] - PB2 [pin 5] - VCC [pin 1] - XTAL1/PB0 [pin 2] - XTAL2/PB1 [pin 3] ### U4 — [PAM2401SCADJ](https://www.flux.ai/adrian95/pam2401scadj~ado.md) - Manufacturer Part Number: PAM2401SCADJ - Datasheet URL: https://www.diodes.com/assets/Datasheets/PAM2401.pdf - Part Type: Integrated Circuit - Manufacturer Name: Diodes Incorporated **Pins:** - AGND - EN - FB - LX - OUT - PGND - RSET - VIN ### VR1 — [3303W-3-103E](https://www.flux.ai/adrian95/3303w-3-103e~qiv.md) - Manufacturer Part Number: 3303W-3-103E - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Bourns Inc. - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Bourns%20PDFs/3303.pdf - Part Type: Potentiometer **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### VR2 — [3303W-3-103E](https://www.flux.ai/adrian95/3303w-3-103e~qiv.md) - Part Type: Potentiometer - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Bourns%20PDFs/3303.pdf - Manufacturer Name: Bourns Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 3303W-3-103E **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### Y1 — [Crystal SMD 3225-4Pin 3.2x2.5mm](https://www.flux.ai/adrian95/crystal-smd-3225-4pin-32x25mm~ndy.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Oscillator **Pins:** - P1 [pin 1] - P2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/adrian95/qwiic-pc-fan-controller~0c3](https://www.flux.ai/adrian95/qwiic-pc-fan-controller~0c3).* --- *Generated from [https://www.flux.ai/adrian95/qwiic-pc-fan-controller~0c3](https://www.flux.ai/adrian95/qwiic-pc-fan-controller~0c3)*