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STD LED fuel level indicator for resistive reed sender

License: Public Domain

Mode: Editors' pick

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Update time: 2022-04-20 14:33:27
Creation time: 2022-01-26 20:43:03
Description

Dual fuel indicator LM3914 based for resistive reed sensor (0..190 ohms).

Very compact, only 4,5 x 4,5 cm.

 

Initially designed for Skyranger aircraft fuel tanks (30L x 2).

This is the type of sensor for which the indicator has been designed.

 

Design Drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 FASTON-PCB-6.3X0.8 F1,F2 PKG-FASTON-PCB-6.3X0.8 2
2 HDR-M-2.54_1x2 J1,J2 HDR-M-2.54_1X2 2
3 LED-TH-5mm_R LED11,LED21 LED-TH_BD5.0_RED 2
4 LED-TH-3mm_R LED12,LED22 LED-TH_BD3.0_RED 2
5 LED-TH-3mm_G LED13,LED14,LED15,LED16,LED17,LED23,LED24,LED25,LED26,LED27 LED-TH_BD3.0_GREEN 10
6 1K R11,R21 R_AXIAL-0.3 2
7 4k7 R12,R22 R_AXIAL-0.3 2
8 33k R13 R_AXIAL-0.3 1
9 680 R14,R24 R_AXIAL-0.5 2
10 15 R15,R25 R_AXIAL-0.5 2
11 33K R23 R_AXIAL-0.3 1
12 LM3914N-1/NOPB U1,U2 DIP-18_L23.0-W6.5-P2.54-LS7.6-BL 2

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