HardLabs

Dakboard-HDMI-dimmer-HW

DotaPie·Dakboard-HDMI-dimmer-HW·Dakboard-HDMI-dimmer-KiCAD/Dakboard-HDMI-dimmer-v1/Dakboard-HDMI-dimmer-v1.kicad_pcb

Dakboard-HDMI-dimmer-HW PCB layout, top view — open source board by DotaPie

About the Dakboard-HDMI-dimmer-HW PCB

Dakboard-HDMI-dimmer-HW is an open source PCB design by DotaPie, published on GitHub under the EUPL-1.2 license. It is a 2-layer board measuring 30 × 65 mm, with 13 components from 9 distinct parts.

By type, the board carries 6 resistors, 4 capacitors and 3 connectors.

It belongs with the sensors, displays & leds and dev boards & breakouts designs in this gallery.

From the project

Custom Raspberry Pi HAT with a BH1750 light sensor and PIR motion sensor for automatic HDMI display dimming. KiCAD source and JLCPCB-ready gerbers. Fits any Raspberry Pi with a 40-pin header. Pairs with Dakboard-HDMI-dimmer-FW.

A Raspberry Pi HAT that carries a BH1750 ambient-light sensor and a PIR motion sensor for automatic HDMI display dimming.

Designed for the Raspberry Pi Zero 2 W, but it mounts on any Raspberry Pi with the standard 40-pin header. Pairs with Dakboard-HDMI-dimmer-FW, which reads these sensors and adjusts display brightness.

- 40-pin GPIO header (J1) - mounts the board as a HAT and breaks out power, I²C, and the PIR line - BH1750 light sensor header (J2) - 5-pin module (VCC / GND / SCL / SDA / ADDR) on I²C bus 1, address 0x23, with 4K7 pull-ups - PIR motion sensor header (J3) - 3-pin module…

Dakboard-HDMI-dimmer-HW, from the project README
From the project README

Dakboard-HDMI-dimmer-HW bill of materials (BOM)

13 components, 9 distinct parts.

QtyPartRefs
1
Conn_02x20_Odd_Even
J1
1
Conn_01x05
J2
1
Conn_01x03
J3
2
10 uF
C2, C5
2
100 nF
C3, C4
1
100K
R1
2
47R
R2, R3
2
4K7
R4, R5
1
1K
R6

Dakboard-HDMI-dimmer-HW design files

The KiCad project lives in the DotaPie/Dakboard-HDMI-dimmer-HW repository on GitHub; these links point at the commit this page was built from.

Dakboard-HDMI-dimmer-HW: common questions

How big is the Dakboard-HDMI-dimmer-HW PCB?

The Dakboard-HDMI-dimmer-HW measures 30 × 65 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dakboard-HDMI-dimmer-HW?

13 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Dakboard-HDMI-dimmer-HW design files?

From the DotaPie/Dakboard-HDMI-dimmer-HW repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Dakboard-HDMI-dimmer-HW design in my own project?

Yes, under the terms of its EUPL-1.2 license, which DotaPie chose for the repository.

Similar boards