5 open source boards using the LM1117DT-3.3
Real designs built with the LM1117DT-3.3, 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.
STM32Cats eye
lennartquerter
90 × 110 mm223 parts4LCC-BY-NC-4.010
AVR/ArduinoArduino-Minimal-Design
SushantSaroch13
34 × 59.6 mm33 parts2LNo license1
ESP32SchrackCounter
bismarx-v1
140 × 60 mm75 parts4LNo license2
STM32Midi-2-cv
50 × 110 mm142 parts4LCC-BY-NC-4.010
ESP32SchrackCounter
98.5 × 88.5 mm69 parts4LNo license2
The LM1117DT-3.3 in open source designs
The gallery holds 5 open source boards using the LM1117DT-3.3 from 3 GitHub repositories; a typical one measures about 90 × 88.5 mm and carries around 75 components.
80% use four copper layers or more, and 0% carry an open source license.
The most starred is Cats eye by lennartquerter.
Microcontrollers on boards using the LM1117DT-3.3
What boards using the LM1117DT-3.3 are built for
LM1117DT-3.3: common questions
Where can I find a LM1117DT-3.3 reference design?
Each of the 5 boards on this page is a real design using the LM1117DT-3.3. 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 LM1117DT-3.3 use?
Most are built on ESP32 (2), STM32 (2) and AVR/Arduino (1).
How big is a typical board using the LM1117DT-3.3?
The median is 90 × 88.5 mm, and 20% are two-layer designs.
What is the most popular open source board using the LM1117DT-3.3?
By GitHub stars, Cats eye by lennartquerter, with 10 stars.
Can I simulate one of these boards using the LM1117DT-3.3 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.