Mini Filter
FLT-001
Compact active low-pass filter for sensor signals before your MCU ADC. Breadboard-friendly 2.54 mm headers, six DIP-selectable cutoffs.
View productDesign · Build · Test
Precision electronics for makers and engineers
Turul LLC designs, manufactures, and factory-tests small-batch PCBs — signal conditioning, isolation, and measurement front-ends with full serial traceability.
About Turul LLC
We build tools that belong on a real bench: filters you can press into a breadboard, isolators for messy digital buses, and current front-ends that speak the language of your scope. Every shipped board can carry a QR code linked to its factory characterization data.
Look up serial number
Enter the 9-digit serial from your product label or bag sticker (YYMMDD###) to open its factory test certificate.
Example short link: www.turul.llc/260721023
Products
I2S Isolator
I2S-001
Galvanic isolation for I2S and optional I²C between your digital side and audio side. Factory options for power, extra channels, on-board reference clock, and I²C.
View productProfessional Energy Analyzer
PEA-001
Professional Energy Analyzer — precision µA-to-A current measurement frontend. In development.
View productShop
Available on marketplace listings — on-site checkout coming later.