Lonely Binary
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The TK63 at an angle: a black board with a gold border, a pale 5 mm LED standing upright near the top, a small transistor and a resistor at the top right, a small LED between the two round LEGO holes with two resistors under it, lonely binary and INFRARED TRANSMITTER up the left edge, ACTIVE HIGH up the right edge, and a right-angle four-pin header.
VR

View it in VR

This board opens in a VR headset: life-size, or big enough to stand beside, with every pin and every part named where it sits. Open this address in the browser on a headset such as Apple Vision Pro or Meta Quest.

learn.lonelybinary.com/vr/tk63
You have this

Infrared Transmitter

A 5 mm, 940 nm infrared LED on a TinkerBlock board, switched by an S8050 transistor, with one 150 Ω resistor setting its current from VCC and a red LED that shows when it is on. SIGNAL HIGH turns it on. Your pin only feeds the transistor, so VCC may be 5 V on a 3.3 V board. Blink it, send remote-control codes to a TK15, or make a break-beam with a TK64.

LED current
24mA from 5 V; 13 mA from 3.3 V
Beam
20°across, 940 nm
VCC
5Vsafe on a 3.3 V board
For a TK15
38kHz, made by the library
Start here · 01 The four pinsOpen the board in 3D

Turn it over and see the three holes to wire: GND, VCC and SIGNAL. SIGNAL reaches only the 1 kΩ into the transistor's base; VCC reaches only the two LEDs' resistors, which is why it may be 5 V on a 3.3 V board.

Product questions & answers ↓

The whole handbook9 articles · 45 minQuick referencePDF · 436 KBInfrared Transmitter model (GLB)GLB · 1.1 MBInfrared Transmitter CAD (STEP)ZIP · 1.1 MBIR333-A datasheetPDF · en.everlight.comS8050 datasheetPDF · datasheet.lcsc.comPinout and specsThe pin table, and the questions people ask first
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Infrared Transmitter

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Need another

Not on general sale yet. Reply to your order and we will sort out a spare — quote tk63.

Order or missing parts?

Email us or reply to your order, and quote tk63 — 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.