Lonely Binary
AccountCart
The TK97 at an angle: a black board with a gold border, a long black right-angle socket along the far edge with GND, 3V3 and L1 to L6 printed in front of it, a row of five small three-legged transistors with a resistor either side of each in the middle, a sixth transistor at the right, the five-legged regulator at the lower left, two round LEGO holes, and a right-angle header along the near edge under GND, 5V and H1 to H6.
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/tk97
You have this

Logic Level Converter

Six bidirectional channels between 3.3 V and 5 V on a TinkerBlock board: L1 to L6 in a socket on the 3.3 V side, H1 to H6 on a header on the 5 V side, each a BSS138 with a 10 kΩ pull-up either side. It needs only 5V and GND: an ME6211 regulator makes the 3.3 V side's supply, so the socket's 3V3 pin is an output that powers a 3.3 V block, and is never fed.

Channels
6L1 to L6 opposite H1 to H6
Needs
5Vand GND, nothing else
3V3 pin
Outputnever feed it
3V3 gives
176mA before its 300 mW limit
Start here · 01 The two rowsOpen the board in 3D

Turn it over and follow each channel: L1 to L6 in the socket and H1 to H6 on the header, a transistor and two 10 kΩ pull-ups between each pair. The socket's 3V3 is the regulator's output, made from the header's 5V.

Product questions & answers ↓

The whole handbook9 articles · 40 minQuick referencePDF · 507 KBLogic Level Converter model (GLB)GLB · 3.5 MBLogic Level Converter CAD (STEP)ZIP · 1.7 MBLogic Level Converter drawing (PDF)PDF · 2.4 MBLogic Level Converter drawing (DXF)ZIP · 76 KBME6211 datasheetPDF · datasheet.lcsc.comBSS138 datasheet (KUU)PDF · datasheet.lcsc.comPinout 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 ↗

Logic Level Converter

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 tk97.

Order or missing parts?

Email us or reply to your order, and quote tk97 — 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.