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Atmega328-enclosure tamper alarm

manhoosbilli1·atmega328-enclosure-tamper-alarm

Atmega328-enclosure tamper alarm PCB layout, top view — open source AVR/Arduino board by manhoosbilli1

About the Atmega328-enclosure tamper alarm PCB

Atmega328-enclosure tamper alarm is an open source AVR/Arduino PCB design by manhoosbilli1, published on GitHub. It is a 2-layer board measuring 100 × 60 mm, with 83 components from 52 distinct parts.

Its main chip is the ATmega328-A, from the AVR/Arduino family. Other key parts include the 74LVC1G00, LM5158QRTERQ1, TPS62933DRLR, LTC4412ES6#TRPBF and LTC2960CTS8-1#TRMPBF. By type, the board carries 28 resistors, 26 capacitors, 7 transistors, 6 ICs, 5 connectors and 3 switches.

It belongs with the power & battery designs in this gallery.

From the project

ATmega328 AC enclosure tamper/intrusion alarm with LTC2960 voltage monitor, LTC4412 PowerPath, boost+buck converters

ATmega328-based AC enclosure tamper/intrusion alarm with PowerPath, voltage monitoring, and dual switching converters

- Status: In progress - Board size: 100 x 60 mm - Layers: 2 - Components: 98 - Key ICs: - U1: 74LVC1G00 - U2: ATmega328-A - U3: LM5158QRTERQ1 - U4: TPS62933DRLR - U5: LTC4412ES6#TRPBF - U6: LTC2960CTS8-1#TRMPBF

- ATmega328-A - main MCU; reads tamper switches, manages alarm state, drives outputs - LTC4412ES6 - low-loss ideal-diode / PowerPath controller; manages source switching between mains-derived rail and backup battery seamlessly - LTC2960CTS8-1 - precision voltage…

Atmega328-enclosure tamper alarm, from the project README
From the project README

Main components on the Atmega328-enclosure tamper alarm

74LVC1G00ATmega328-ALM5158QRTERQ1TPS62933DRLRLTC4412ES6#TRPBFLTC2960CTS8-1#TRMPBF

Atmega328-enclosure tamper alarm bill of materials (BOM)

83 components, 52 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74LVC1G00
U1
1
ATmega328-A
U2
1
LM5158QRTERQ1
U3
1
TPS62933DRLR
U4
1
LTC4412ES6#TRPBF
U5
1
LTC2960CTS8-1#TRMPBF
U6
3
DMN10H220L
Q1, Q2, Q3
2
FDC610PZ
Q4, Q6
2
SI4435DY
Q5, Q7
1
16MHZ
Y1
1
AVR-ISP-6
J1
1
Conn_01x04
J2
1
Conn_01x03
J3
1
BATTERY IN
J4
1
WALL IN
J5
2
10K
RV1, RV2
1
1TS005F-2500-5001
SW1
2
SW_Push
SW2, SW3
1
B220
D1
1
BZT52B2V4
D2
Show 32 more
QtyPartRefs
1
RED
D3
1
1.5uH
L1
1
6.8uH
L2
3
100nF
C1, C5, C18
6
100nF
C2, C3, C7, C17, C22, C25
3
4.7uF
C4, C13, C14
1
22nF
C6
1
10nF
C8
1
1uF
C9
1
100pF
C10
2
22pF
C11, C12
2
10uF/50V
C15, C16
3
100uF/35V
C19, C20, C26
1
33nF
C21
2
22uF/35v
C23, C24
7
10K
R1, R10, R11, R12, R13, R14, R17
1
9.09K
R2
1
2.61K
R3
2
1M
R4, R20
1
49.9K 1%
R5
1
2.15K 1%
R6
3
100R
R7, R8, R9
1
3M
R15
1
82K
R16
1
10.2K 1%
R18
1
53.6k 1%
R19
3
100K
R21, R22, R27
1
49.9R 1%
R23
1
4.7K
R24
1
4.3K
R25
1
510K
R26
1
5.6M
R28

Atmega328-enclosure tamper alarm design files

The KiCad project lives in the manhoosbilli1/atmega328-enclosure-tamper-alarm repository on GitHub; these links point at the commit this page was built from.

Atmega328-enclosure tamper alarm: common questions

What microcontroller does the Atmega328-enclosure tamper alarm use?

The Atmega328-enclosure tamper alarm is built around the ATmega328-A, from the AVR/Arduino family.

How big is the Atmega328-enclosure tamper alarm PCB?

The Atmega328-enclosure tamper alarm measures 100 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Atmega328-enclosure tamper alarm?

83 components, from 52 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Atmega328-enclosure tamper alarm design files?

From the manhoosbilli1/atmega328-enclosure-tamper-alarm repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Atmega328-enclosure tamper alarm design in my own project?

The repository has no license, so all rights stay with manhoosbilli1. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Atmega328-enclosure tamper alarm without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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