3 open source boards using the OPTO-TRANSISTOR4
Real designs built with the OPTO-TRANSISTOR4, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
AVR/ArduinoTX5823
ep092
54.5 × 47.6 mm94 parts2LNo license9
Relay board
marvec
149.9 × 89.5 mm62 parts2LApache-2.00
Switch board
149.9 × 44.5 mm39 parts2LApache-2.00
The OPTO-TRANSISTOR4 in open source designs
The gallery holds 3 open source boards using the OPTO-TRANSISTOR4 from 2 GitHub repositories; a typical one measures about 149.9 × 47.6 mm and carries around 62 components.
100% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.
The most starred is TX5823 by ep092.
Microcontrollers on boards using the OPTO-TRANSISTOR4
OPTO-TRANSISTOR4: common questions
Where can I find a OPTO-TRANSISTOR4 reference design?
Each of the 3 boards on this page is a real design using the OPTO-TRANSISTOR4. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the OPTO-TRANSISTOR4 use?
Most are built on AVR/Arduino (1).
How big is a typical board using the OPTO-TRANSISTOR4?
The median is 149.9 × 47.6 mm, and 100% are two-layer designs.
What is the most popular open source board using the OPTO-TRANSISTOR4?
By GitHub stars, TX5823 by ep092, with 9 stars.
Can I simulate one of these boards using the OPTO-TRANSISTOR4 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.