Pwm breakout phat

asssaf·pwm-breakout-phat

Pwm breakout phat layout, top view — open source board by asssaf

About the Pwm breakout phat

Pwm breakout phat is an open source PCB design by asssaf, published on GitHub. It is a 2-layer board measuring 65 × 30 mm, with 18 components from 7 distinct parts.

By type, the board carries 16 connectors, 1 IC and 1 jumper.

It belongs with the dev boards & breakouts and robotics & motion designs in this gallery.

From the project

A pHAT for Raspberry Pi, breaking out the PWM pins and some proto area

The PWM pins are broken out into four 3-pin connectors that can be used with 5V servos. Granted, it's not recommended to run a servo directly from the pi pins without any protection. But in practice, running micro servos (such as sg90), especially one at a time, should be ok (but do it at your own risk).

In order to enable hardware PWM, the appropriate overlay needs to be enabled in config.txt. For example:

Pwm breakout phat bill of materials (BOM)

18 components, 7 distinct parts.

QtyPartRefs
1
~
U2
1
GPIO
J1
3
Conn_01x01
J2, J3, J4
1
BO
J6
2
Conn_01x04_Female
J8, J9
9
Conn_01x01
P1, P2, P3, P4, P5, P6, P7, P8 +1
1
SolderJumper_3_Bridged12
JP2

Pwm breakout phat design files

The KiCad project lives in the asssaf/pwm-breakout-phat repository on GitHub; these links point at the commit this page was built from.

Pwm breakout phat: common questions

How big is the Pwm breakout phat?

The Pwm breakout phat measures 65 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pwm breakout phat?

18 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pwm breakout phat design files?

From the asssaf/pwm-breakout-phat repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Pwm breakout phat design in my own project?

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

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