HardLabs

Grippy

mikeysklar·grippy·grippy/grippy.kicad_pcb

Grippy PCB layout, top view — open source ESP32 board by mikeysklar

About the Grippy PCB

Grippy is an open source ESP32 PCB design by mikeysklar, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 60.8 × 35.2 mm, with 9 components from 5 distinct parts.

Its main chip is the esp32s3-supermini, from the ESP32 family. By type, the board carries 6 switches, 1 IC and 1 connector.

It belongs with the keyboards, iot & wireless and power & battery designs in this gallery.

From the project

grip based pocket keyboard

Originally designed as a one-handed chording keyboard for wearables, Grippy has grown through five iterations into a slim, ultralight everyday-carry note-taking device.

Typing around 30 WPM with a single hand—and even inside your pocket—is completely realistic.

Grippy also doubles as a USB or BLE keyboard for phones, tablets, and computers.

- Slim & Lightweight - About the thickness of a AAA battery - ~7× lighter than an iPhone

Grippy, from the project README
From the project README

Main components on the Grippy

esp32s3-supermini

Grippy bill of materials (BOM)

9 components, 5 distinct parts.

QtyPartRefs
1
esp32s3-supermini
U1
1
Conn_01x08_Socket
J1
1
JST-GH 1.25
BAT1
5
SW_SPST
SW0, SW1, SW2, SW3, SW4
1
SW_DPDT_x2
SW5

Grippy design files

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

Grippy: common questions

What microcontroller does the Grippy use?

The Grippy is built around the esp32s3-supermini, from the ESP32 family.

How big is the Grippy PCB?

The Grippy measures 60.8 × 35.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Grippy?

9 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Grippy design files?

From the mikeysklar/grippy repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Grippy design in my own project?

Yes, under the terms of its GPL-3.0 license, which mikeysklar chose for the repository.

Can I test firmware for the Grippy without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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