# Automated PWM Fan Controller ## Description Wireless 12V fan control ## Project Details - **Owner:** rshelton281 - **Created:** 8/11/2026 - **Last Updated:** 8/11/2026 - **Visibility:** Public ## Key Components ### LCD1 — [HS1602A-Y](https://www.flux.ai/adrian95/hs1602a-y~ddd.md) - Datasheet URL: https://lcsc.com/datasheet/lcsc_datasheet_2309211850_HS-HS1602A-Y_C18198250.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: HS1602A-Y - Part Type: LED - Manufacturer Name: HS **Pins:** - 0 [pin 0] - 0 [pin 0] - 0 [pin 0] - 0 [pin 0] - DB0 [pin 7] - DB1 [pin 8] - DB2 [pin 9] - DB3 [pin 10] - DB4 [pin 11] - DB5 [pin 12] - DB6 [pin 13] - DB7 [pin 14] - E [pin 6] - LED- [pin 16] - LED+ [pin 15] - R/W [pin 5] - RS [pin 4] - VDD [pin 2] - VO [pin 3] - VSS [pin 1] ### Q1 — [2N2222A](https://www.flux.ai/lcsc/2n2222a~00rk.md) - Manufacturer Part Number: 2N2222A - Product Info Url: https://lcsc.com/product-detail/Transistors-NPN-PNP_2N2222_C118536.html - Package or Case Code: TO-92-3_L4.9-W3.7-P1.27-L - JLCPCB Part Class: Extended Part - Transistor Type: NPN - Manufacturer Name: ST(先科) - Compliance: RoHS - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809200018_ST-Semtech-2N2222A_C118536.pdf - LCSC Part Number: C118536 - Frequency: 250MHz - Part Type: Transistors/Thyristors/Bipolar (BJT) **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q2 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Manufacturer Name: Infineon Technologies - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: IRLZ44NPBF - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf - Part Type: Transistor **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### U1 — [Seeed Studio XIAO RA4M1](https://www.flux.ai/seeedstudio/seeed-studio-xiao-ra4m1~mw.md) - Datasheet URL: https://www.renesas.com/us/en/document/dst/ra4m1-group-datasheet - Product Info Url: https://wiki.seeedstudio.com/getting_started_xiao_ra4m1/ - Purchase Url: https://www.seeedstudio.com/Seeed-XIAO-RA4M1-p-5943.html?utm&product=xiao-ra4m1 - Manufacturer Part Number: 102010551 **Pins:** - -BAT [pin 30] - +BAT [pin 29] - 3V3 [pin 12] - 3V3 1 [pin 25] - 5V [pin 14] - BOOT [pin 26] - CLK [pin 23] - D0 [pin 1] - D1 [pin 2] - D10 [pin 11] - D11 [pin 15] - D12 [pin 16] - D13 [pin 17] - D14 [pin 18] - D15 [pin 19] - D16 [pin 20] - D17 [pin 21] - D18 [pin 22] - D2 [pin 3] - D3 [pin 4] - D4 [pin 5] - D5 [pin 6] - D6 [pin 7] - D7 [pin 8] - D8 [pin 9] - D9 [pin 10] - DIO [pin 28] - GND [pin 13] - GND 1 [pin 24] - RST [pin 27] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/rshelton281/automated-pwm-fan-controller~9y](https://www.flux.ai/rshelton281/automated-pwm-fan-controller~9y).* --- *Generated from [https://www.flux.ai/rshelton281/automated-pwm-fan-controller~9y](https://www.flux.ai/rshelton281/automated-pwm-fan-controller~9y)*