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Power Outage Detector with Text Messaging

Detects and reports power outages (even short ones)

Power Outage Detector with Text Messaging
Power Outage Detector with Text Messaging
Power outages are fairly rare in central Europe, and when they do occur they are usually short. However, if the heating system of your holiday home doesn’t start up again after a power outage, the consequences can be costly. And even if only your freezer at home stops working while you’re on holiday, the stench when you get back can spoil your homecoming. The detector described here detects even short power outages and sends you text message alerts. Note: For 115VAC operation replace R9 by a wire strap.
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Materials

Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.

The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.

PCB

Components

The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.

Download the BOM list

Component list

Component List

Resistors

Default: 1%, 0.1W, 50V, SMD 0603

R1 = 10kΩ

R2 = 110kΩ

R3,R19 = 470Ω

R4 = 43kΩ

R5,R13,R20,R21 = 1kΩ

R6 = NTC 80R B57236S0800M000, Epcos

R7 = 4.7kΩ

R8,R9 = 47kΩ, 5%, 0.6W, 250V, axial leads (for 115VAC operation replace R9 by a wire strap)

R10,R11,R12 = 22Ω

R14,R15 = 100kΩ

R16 = 470kΩ

R17 = 1MΩ

 

Inductors

L1 = ACM4520-231-2P-T common-mode filter

L2 = BLM21AJ601SN1D, 10µH / 600Ω at 100MHz, SMD 0805

 

Capacitors

Default: 50V, ceramic, SMD 0603

C1,C2,C4,C5,C7,C13,C16,C17,C18,C22 = 100nF

C3,C19 = 1000µF 10V, electrolytic, SMD, radial, 8mm diam.

C6,C12 = 100µF 16V, tantalum electrolytic, SMD 2312

C8-C11,C15 = 33pF, C0G/NP0

C14 = 10pF, C0G/NP0

C20,C21 = 1µF 10V

 

Semiconductors

D1 = 1N4007 diode, 1000V/1A

D2 = SMF05CT2G protection diode array

LED1 = yellow, SMD 0805

LED2,LED5 = green, SMD 0805

LED3 = red, SMD 0805

LED4 = orange, SMD 0805

T1 = 2N7002, n-channel MOSFET, SOT-23

IC1 = MIC29302WU TR, low-drop voltage regulator, adjustable

IC2 = ATmega328P-AU, microcontroller, programmed 160372-41

IC3 = CNY65, optocoupler

IC4 = MCP1700T-2802E/TT, low-drop voltage regulator, 2.8V

IC5 = LTC4413, dual fast diode / voltage changeover

 

Miscellaneous

MOD1 = AC/DC converter module, 5V/2A (Meanwell IRM-10-5)

MOD2 = Quectel M95 GSM module

X1 = 8MHz ceramic resonator, Murata CSTCC8M00G53-R0

SIM1 = micro SIM card socket, SMD (Molex 78723-1001)

ANT1 = SMA socket, PCB mount (Molex 73391-0070)

Matching GSM antenna with SMA plug (RF Solutions ANT-GHEL2R-SMA)

JP1 = 2-pin pinheader, vertical, 0.1" pitch

Jumper for JP1

F1 = fuse, T, 5×20mm, 315mA (230V) or 620mA (115V)

Fuse holder for F1 (Multicomp MC000827)

Fuse cover for F1 (MC000833) *

K1 = 6-pin (2×3) pinheader, vertical, 0.1" pitch

K2 = 2-way screw terminal block, 630V, 0.3" pitch

BT1 = battery holder for 3× AA cells
Clip for BT1

PCB 160372-1 V2.1

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