The TK04 at an angle: a black board with a gold-plated border, a square black tactile switch with a large round blue cap near the top, a small LED and two tiny resistors below it, two big mounting holes, ACTIVE HIGH up the right-hand edge, and a right-angle four-pin header along the near edge labelled GND, VCC, NC and SIGNAL.

You have thistk04

Push Button

A 12 mm momentary push button with its 10 kΩ pull-down and a red press light already fitted: SIGNAL reads HIGH while the button is down. The first input in the kit, and the module that teaches debouncing.

Switch: 12× 12 mm tactile, blue cap
Pull-down: 10kΩ fitted, pressed reads HIGH
VCC: 3.3or 5 V, to match your board
Wires: 3GND, VCC, SIGNAL

Start here · 01 The four pins Open the board in 3D

Turn it over and see the three holes to wire: GND, VCC and SIGNAL. VCC sets the voltage SIGNAL reads when pressed, so match it to your board. NC is connected to nothing.

Product questions & answers ↓

The whole handbook9 articles · 40 min Quick referencePDF · 494 KB Push Button model (GLB)GLB · 1.4 MB Push Button CAD (STEP)ZIP · 939 KB Push Button drawing (PDF)PDF · 2.2 MB Push Button drawing (DXF)ZIP · 50 KB Switch drawingPDF · datasheet.lcsc.com Pinout and specsThe pin table, and the questions people ask first

Community

Product questions

See what other owners have asked, and read their solutions.

Ask a question ↗

Push Button

Loading discussions…

View all on the community ↗Read here. Sign in to the community to post or reply.

Need another

Not on general sale yet. Reply to your order and we will sort out a spare — quote tk04.

Order or missing parts?

Email us or reply to your order, and quote tk04 — that identifies the product. If something is missing from the bag, your order is the record of what shipped.

Take it with you

Point a phone camera at the code and this page opens there. It is the same address as the one printed on your box, so it is also what to show someone you are passing the board to.