HardLabs

TouchKeyer

jglandorf·keyer

TouchKeyer PCB layout, top view — open source board by jglandorf

About the TouchKeyer PCB

TouchKeyer is an open source PCB design by jglandorf, published on GitHub. It is a 2-layer board measuring 41.3 × 16.5 mm, with 17 components from 9 distinct parts.

By type, the board carries 8 resistors, 4 transistors, 4 capacitors and 1 connector.

It belongs with the rf & radio designs in this gallery.

From the project

Two Types of Touch Keyers (Paddles) for CW (Morse Code), Tested on the QMX+

Implemented for use with the QMX+ HF transceiver. PCBs designed in KiCAD v9.

The first keyer is a capacitive touch keyer, based on "Penny Paddles", https://www.thingiverse.com/thing:7049323.

The second keyer is a pressure paddle, based on https://vk3il.net/pressure-paddle-v2/.

The capacitive touch paddle is based on KD9AIE's Penny Paddles schematic. It has been slightly modified:

TouchKeyer, from the project README
From the project README

TouchKeyer bill of materials (BOM)

17 components, 9 distinct parts.

QtyPartRefs
2
2N7000
Q1, Q2
2
Si2300
Q11, Q12
1
PJ-313
J1
2
330p
C1, C2
2
330p
C11, C12
2
10M
R1, R3
2
1M
R2, R4
2
10M
R11, R13
2
1M
R12, R14

TouchKeyer design files

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

TouchKeyer: common questions

How big is the TouchKeyer PCB?

The TouchKeyer measures 41.3 × 16.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TouchKeyer?

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

Where can I download the TouchKeyer design files?

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

Can I use the TouchKeyer design in my own project?

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

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