Lonely Binary
AccountCart
The 4-inch display module seen from above at an angle: a black rectangular body with a large off-white figure 8 and a round dot at its lower right, standing about 15 millimetres proud of the board behind it.
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/seg4
You have this

4″ 7-Segment LED Display with 74HC595

The newer 4-inch digit, with a PWM pad for dimming (the earlier version had none). Its own shift register, six signal wires from your board, a 12 V supply for the segments, and modules that plug into each other to make longer numbers.

Digit
4inch
Segments
12V, its own supply
Logic
3.3 / 5V
Brightness
PWMone pin, or short the pad
Start here · 01 Seven segments and a dotOpen the module in 3D

Turn it over, click any of the eight holes on the IN edge, then lift the display off to see the shift register, the driver and the PWM switch it covers.

Product questions & answers ↓

The whole handbook16 articles · 80 minQuick reference (PDF)PDF · 537 KBDatasheetPDF · ti.comDatasheetPDF · ti.comDatasheetPDF · aosmd.com3D model (GLB)GLB · 4.8 MBCAD model (STEP)ZIP · 11.7 MBDrawing (PDF)PDF · 2.6 MBDrawing (DXF)ZIP · 123 KBPinout and specsThe pin table, and the questions people ask first

Watch it built

Each film comes with a written page that says the same thing in words.

Film · 3:39

A chain on an ESP32-S3

Every wire going on, one at a time: the 12 V adapter, six wires from the S3, and eight jumpers at each join.

Read the page
Community

Product questions

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

Ask a question ↗

4″ 7-Segment LED Display with 74HC595

Loading discussions…

View all on the community ↗Read here. Sign in to the community to post or reply.
Need another
4″ 7-Segment LED Display with 74HC595
Buy directBuy on Amazon
Order or missing parts?

Email us or reply to your order, and quote seg4 — 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.