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STD Fan Control

License: TAPR Open Hardware License

Mode: Editors' pick

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Update time: 2019-10-17 06:58:14
Creation time: 2019-10-09 07:25:50
Description
A simple digital fan control with expansion capabilties. It was created for one guy in forum https://forum.ixbt.com/?id=48 to show a modern way to solve this kind of task with additional requested feature - to run a fan first 2-3 seconds at full speed. Basically a microcontroller reads voltage value fron the potentiometer R1 and sets PWM (speed) accordingly. The MC has a thermo sensor on board. so it is possible to wrrite a program that not only checrks th resistor value, but also nonitores am anbient temperature and regulates tha fan. Everythnig except MC and headers are standard parts for LCSC, so you can order partial assembly and just solder STM32G0 and headers after receiving.
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ID Name Designator Footprint Quantity BOM_Supplier BOM_Manufacturer BOM_Manufacturer Part BOM_Supplier Part
1 SK2304AA Q1 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 1 LCSC SK SK2304AA C130871
2 10uF C1,C3 0805 2 LCSC SAMSUNG CL21A106KAYNNNE C15850
3 To 10k Pot P1 HDR-3X1/2.54 1 LCSC BOOMELE Header2.54mm 1*3P C49257
4 To Power & Fan P2 HDR-3X1/2.54 1 LCSC BOOMELE Header2.54mm 1*3P C49257
5 Debug P3 HDR-3X1/2.54 1 LCSC BOOMELE Header2.54mm 1*3P C49257
6 100nF C4,C2 0805 2 LCSC SAMSUNG CL21B104JBCNNNC C62912
7 RB161MM-20TR D1 DIODE_SOD-123FL 1 LCSC ROHM Semicon RB161MM-20TR C123070
8 STM32G030J6M6 U2 SO8-SO-8_N 1 Mouser STMicroelectronics STM32G030J6M6 511-STM32G030J6M6
9 10K R1 RES-ADJ-TH_3P-L9.5-W9.5-P2.54-BR-BS 1 LCSC BOURNS 3386P-1-103LF C116281
10 SPX5205M5-L-3-3/TR U1 SOT-23-5 1 LCSC EXAR SPX5205M5-L-3-3/TR C6864

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