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The TK95 at an angle: a black board with a gold border, two flat white rectangular LEDs one above the other near the top, two black resistors and two brown capacitors to their left, two small three-legged transistors with a resistor beside each in the middle, two round LEGO holes, a desk-lamp drawing, lonely binary 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/tk95
You have this

Dual Bright LEDs

Two 5730-size white LEDs on a TinkerBlock board, one warm (3000K) and one cool (6500K), each switched by its own S8050 transistor with a 10 Ω resistor from VCC. A pin for each colour, PWM for brightness and for every white between the two. VCC may be 5 V on a 3.3 V board; on 5 V, cap the PWM at two thirds.

Per LED
168mA from 5 V; 62 mA from 3.3 V
Whites
3000K + 6500Ka pin each
VCC
5Vsafe on a 3.3 V board
On 5 V
170of 255 at most
Start here · 01 The four pinsOpen the board in 3D

Turn it over and see all four holes wired: GND, VCC and a pin for each white. Each colour pin reaches only 1 kΩ into its transistor's base; VCC reaches only the two 10 Ω resistors and the capacitors, which is why it may be 5 V on a 3.3 V board.

Product questions & answers ↓

The whole handbook9 articles · 40 minQuick referencePDF · 425 KBDual Bright LEDs model (GLB)GLB · 1.4 MBDual Bright LEDs CAD (STEP)ZIP · 2.0 MB5730 warm white datasheetPDF · datasheet.lcsc.com5730 cool white datasheetPDF · datasheet.lcsc.comS8050 datasheetPDF · datasheet.lcsc.comPinout and specsThe pin table, and the questions people ask first
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Dual Bright LEDs

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Need another

Not on general sale yet. Reply to your order and we will sort out a spare — quote tk95.

Order or missing parts?

Email us or reply to your order, and quote tk95 — 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.