HardLabs

Avr ledprojection

cnlohr·avr_ledprojector

Avr ledprojection PCB layout, top view — open source AVR/Arduino board by cnlohr

About the Avr ledprojection PCB

Avr ledprojection is an open source AVR/Arduino PCB design by cnlohr, published on GitHub under the MIT license. It is a 2-layer board measuring 50 × 50 mm, with 111 components from 12 distinct parts.

Its main chip is the ATTINY441, from the AVR/Arduino family. Other key parts include the MCP1824, MCP23008-SOIC and MCP1804v5. By type, the board carries 69 diodes, 26 resistors, 6 ICs, 6 connectors and 4 capacitors.

It belongs with the sensors designs in this gallery.

From the project

Using an AVR with an mlx90614 to project temperatures!

(Readme may be worked on soon... maybe... if you care, open an issue and I'll write it)

Main components on the Avr ledprojection

ATTINY441MCP1824MCP23008-SOICMCP1804v5

Avr ledprojection bill of materials (BOM)

111 components, 12 distinct parts.

QtyPartRefs
1
ATTINY441
U1
1
MCP1824
U2
3
MCP23008-SOIC
U3, U4, U5
1
MCP1804v5
U6
1
AVRISP6
J1
1
6MULTI
P1
2
VPP
P2, P4
2
VSS
P3, P5
69
LED
D1, D2, D3, D4, D5, D6, D7, D8 +61
4
10u
C1, C2, C3, C4
2
4.7k
R1, R23
24
R
R2, R3, R4, R5, R6, R7, R8, R9 +16

Avr ledprojection design files

The KiCad project lives in the cnlohr/avr_ledprojector repository on GitHub; these links point at the commit this page was built from.

Avr ledprojection: common questions

What microcontroller does the Avr ledprojection use?

The Avr ledprojection is built around the ATTINY441, from the AVR/Arduino family.

How big is the Avr ledprojection PCB?

The Avr ledprojection measures 50 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Avr ledprojection?

111 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the Avr ledprojection design files?

From the cnlohr/avr_ledprojector repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

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

Yes, under the terms of its MIT license, which cnlohr chose for the repository.

Can I test firmware for the Avr ledprojection 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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