Rotation speed detector

Shrikrishna26·Rotation-speed-detector

Rotation speed detector

About the Rotation speed detector PCB

Rotation speed detector is an open source PCB design by Shrikrishna26, published on GitHub. It is a board, with 25 components from 14 distinct parts.

Other key parts include the LM393, 4040, 4518, ICM7555xB and 4511. By type, the board carries 7 ICs, 6 resistors, 5 battery holders, 3 capacitors, 2 LEDs and 1 diode.

It belongs with the displays & leds and sensors designs in this gallery.

From the project

Digital rotational speed detector using IR sensor, 555 timer, CD4040, CD4518 and CD4511 with 7-segment display output

The design demonstrates fundamental concepts of signal conditioning, digital counting, timing circuits, and display decoding without the use of microcontrollers.

The system works by converting mechanical rotation into electrical pulses and then processing them digitally.

1. IR Detection - A rotating disc interrupts or reflects IR light. - The IR sensor generates voltage pulses.

Main components on the Rotation speed detector

LM393 4040 4518 ICM7555xB 4511

Rotation speed detector bill of materials (BOM)

25 components, 14 distinct parts.

Qty	Part	Footprint	Refs
1	LM393		U1
1	4040		U2
2	4518		U3, U7
1	ICM7555xB	SOIC-8_3.9x4.9mm_P1.27mm	U4
2	4511		U5, U6
3	5V		BT1, BT2, BT3
2	Battery_Cell		BT4, BT5
1	R_Potentiometer		RV1
2	LTS-6980HR	7SegmentLED_LTS6760_LTS6780	AFF1, AFF2
1	LED		D3
3	C		C1, C2, C3
1	10k		R1
2	100		R2, R3
3	R		R4, R5, R6

Rotation speed detector design files

The KiCad project lives in the Shrikrishna26/Rotation-speed-detector repository on GitHub; these links point at the commit this page was built from.

SchematicRotation speed detector.kicad_sch

Rotation speed detector: common questions

How many components are on the Rotation speed detector?

25 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rotation speed detector design files?

From the Shrikrishna26/Rotation-speed-detector repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Rotation speed detector design in my own project?

The repository has no license, so all rights stay with Shrikrishna26. Use it as a reference, and ask the author before reusing the design.

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