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Avr ac400

julian7·avr-ac400·hardware/ac400.kicad_pcb

Avr ac400 PCB layout, top view — open source AVR/Arduino board by julian7

About the Avr ac400 PCB

Avr ac400 is an open source AVR/Arduino PCB design by julian7, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 105.4 × 76.2 mm, with 57 components from 21 distinct parts.

Its main chip is the ATmega328P-A, from the AVR/Arduino family. Other key parts include the TSOP38238. By type, the board carries 20 resistors, 13 capacitors, 6 LEDs, 4 transistors, 3 relays and 3 diodes.

From the project

Alternative control board for Record Power AC-400 air filter

This repository contains a drop-in replacement PCB and firmware for the Record Power AC400 Air Filter controller.

The original AC400 controller is prone to failure due to its simplistic power supply design, which often results in various failures. While the company's support is very good, the replacement controller is still prone to the same issues.

This design aims to provide a solution that is more robust, and tries to keep using original parts where possible. It also uses an ~~ATmega88PA~~ ATmega328P microcontroller, as existing refurbishment stock (note: the ATmega88 I had probably has…

Avr ac400, from the project README
From the project README

Main components on the Avr ac400

ATmega328P-ATSOP38238

Avr ac400 bill of materials (BOM)

57 components, 21 distinct parts.

QtyPartRefs
1
ATmega328P-A
Microchip Technology
U1
1
TSOP38238
U2
4
IRLML2502
Q1, Q2, Q3, Q4
1
AVR-ISP-6
J1
1
3.3V IN
J8
1
Buzzer
BZ1
3
SRD-03VDC-SL-C
Songle
K1, K2, K3
1
HLK-5M03
PS1
1
ON
SW1
1
OFF
SW2
6
OF-SMD 2012 Green
OPTOFLASH
LED1, LED2, LED3, LED4, LED5, LED6
3
1N4007
D1, D2, D3
9
100n
C1, C3, C5, C6, C7, C8, C10, C12 +1
1
470u
C2
3
10u
C4, C9, C11
4
100
R1, R4, R7, R17
4
100k
R2, R5, R8, R18
3
2.2
R3, R6, R9
6
120
R10, R11, R12, R13, R14, R15
2
10k
R16, R19
Show 1 more
QtyPartRefs
1
1k
R20

Avr ac400 design files

The KiCad project lives in the julian7/avr-ac400 repository on GitHub; these links point at the commit this page was built from.

Avr ac400: common questions

What microcontroller does the Avr ac400 use?

The Avr ac400 is built around the ATmega328P-A, from the AVR/Arduino family.

How big is the Avr ac400 PCB?

The Avr ac400 measures 105.4 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Avr ac400?

57 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Avr ac400 design files?

From the julian7/avr-ac400 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Avr ac400 design in my own project?

Yes, under the terms of its CC-BY-4.0 license, which julian7 chose for the repository.

Can I test firmware for the Avr ac400 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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