HardLabs

Desklamp

brainsmoke·desklamp·pcb/base/base.kicad_pcb

Desklamp PCB layout, top view — open source AVR/Arduino board by brainsmoke

About the Desklamp PCB

Desklamp is an open source AVR/Arduino PCB design by brainsmoke, published on GitHub. It is a 2-layer board measuring 96 × 96 mm, with 41 components from 22 distinct parts.

Its main chip is the ATtiny1624, from the AVR/Arduino family. Other key parts include the AP2204K-3.3 and CH340B. By type, the board carries 13 resistors, 11 capacitors, 7 connectors, 4 ICs, 1 transistor and 1 switch.

From the project

Software defined desk lamp

An attempt to try to build something, mostly from materials I already had on hand.

https://github.com/brainsmoke/softpwmpdk

Desklamp, from the project README
From the project README

Main components on the Desklamp

AP2204K-3.3ATtiny1624CH340B

Desklamp bill of materials (BOM)

41 components, 22 distinct parts.

QtyPartRefs
1
AP2204K-3.3
U1
1
ATtiny1624
U2
2
CH340B
U3, U4
1
AO3400A
Q1
2
USB_C_Receptacle_USB2.0
J1, J4
1
Barrel_Jack_Switch
J2
1
Screw_Terminal_01x03
J3
1
Conn_01x04_Male
J5
1
Conn_01x03_Male
J6
1
Conn_01x05_Male
J7
3
R_POT
RV1, RV2, RV3
1
SW_DPDT_x2
SW1
1
D_Schottky
D1
4
1uF
C1, C4, C6, C9
2
220uF
C2, C3
5
100nF
C5, C7, C8, C10, C11
3
22K Ohm
R1, R2, R3
5
5k1 Ohm
R4, R5, R6, R9, R10
1
68 Ohm
R7
1
1k Ohm
R8
Show 2 more
QtyPartRefs
2
33 Ohm
R11, R12
1
100K Ohm
R13

Desklamp design files

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

Desklamp: common questions

What microcontroller does the Desklamp use?

The Desklamp is built around the ATtiny1624, from the AVR/Arduino family.

How big is the Desklamp PCB?

The Desklamp measures 96 × 96 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Desklamp?

41 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Desklamp design files?

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

Can I use the Desklamp design in my own project?

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

Can I test firmware for the Desklamp 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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