DS18S20 Sensor - Fads to Obsessions

Description

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Project Background

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Circuit Details

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Power Supply

A typical "wall-wart" power-supply is used (a surplus laptop charger in this case) in conjunction with a voltage regulator (LM7805) to provide the regulated 5V required by the PIC microcontroller.

Circuit Operation

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Calibration

No calibration is required.

Schematic Diagram

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WS2812 Schematic

Printed Circuit Board (PCB)

This project did not require a PCB.

The construction was done using prototyping board. See the photographs and schematic diagram sections.

Bill of Materials

Qty	Schematic Part-Reference	Value	Notes/Datasheet
1	R1	10k	1/4W, 10%
1	R2	100R	1/4W, 10%
1	R3	100	1/4W, 10%
1	R4	68	1/4W, 10%
Capacitors
2	C1,C2	22pF	Ceramic
1	C3	0.33uF
1	C4	0.1uF
1	C5-C10	1uF
Integrated Circuits
1	U1	PIC16F876A	PIC microcontroller datasheet
Diodes
1	D1	1N-4004
1	D2	LM336-2V5	2.5V Reference Voltage
Miscellaeous
1	J1	CONN-H5	5-pin connector for ICSP
1	P1	CONN	9-pin connector for RS232
1	SW1	SW-SPDT
1	X1	10MHz	Crystal Oscillator
1	Z1		Nokia 5110 LCD

Testing/Experimental Results

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Construction Notes/Trouble Shooting

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Photographs

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References/Web Links

ref001: Information yet to be uploaded.

ref002: Information yet to be uploaded.

New & Changed Items
1.	MAX31855-Thermocouple-Driver
2.	MAX31855
3.	HC05-Bluetooth-Mod
4.	keypad
5.	LCD
6.	PCF8574
7.	Ultrasonic-Nightlight
8.	ATtiny85-HCSR04

DS18S20 Temperature Sensor

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