The TK16 at an angle: a black board with a gold border, a small clear infrared LED lying flat near the top with a lens in its upper face, a three-legged transistor and two resistors at the top right, an LED and a resistor in the middle, lonely binary and IR REMOTE SENDER along the left edge, two big mounting holes, and a right-angle four-pin header labelled GND, VCC, NC and SIGNAL.

You have thistk16

IR Sender

An Everlight IR908-7C 940 nm infrared LED, switched by a transistor, on a TinkerBlock board. SIGNAL HIGH lights it; your microcontroller makes the 38 kHz carrier, and one 150 Ω resistor decides how far it reaches.

LED current: 24mA from 5 V
VCC: 3.3 or 5V; 5 V reaches further
SIGNAL: HIGHlights the LED
Beam: ±20degrees off axis

Start here · IR Sender Open the board in 3D

Turn it over and see the three holes to wire: GND, VCC and SIGNAL. SIGNAL HIGH lights the LED; VCC only feeds the LEDs, so 5V is safe beside any board.

Product questions & answers ↓

Quick referencePDF · 502 KB IR Sender model (GLB)GLB · 1013 KB IR Sender CAD (STEP)ZIP · 1.8 MB IR Sender drawing (PDF)PDF · 2.2 MB IR Sender drawing (DXF)ZIP · 55 KB DatasheetPDF · everlight.com Pinout and specsThe pin table, and the questions people ask first

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IR Sender

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Need another

Comes in these kits — not sold separately

TinkerBlock 46-Piece Sensor Module Kit TinkerBlock IR Remote Mastery Kit

Order or missing parts?

Email us or reply to your order, and quote tk16 — 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.