Waveform Signal Background
5+
DAQ Systems Delivered
24
Bits ADC Resolution
3
MCU Platforms
100%
Custom Engineering
Signal Radiation Pattern
About
Building instruments that measure with precision.

I'm Fathur Rohman Siddiq, founder of Degan Circuit — an electronics engineering studio focused on high-integrity data acquisition, embedded systems design, and signal conditioning for scientific and industrial applications.

My work spans from low-noise seismic sensor chains using MMA MEMS accelerometer and geophone inputs, through 16-bit ADC acquisition at 800 SPS and 1–1000 Hz vibration capture, to biomedical impedance systems for EMG/ECG and potentiostat-based BIA measurement from 0.4–100 Hz. Every design prioritizes measurement accuracy, firmware reliability, and real-world robustness.

I deliver complete, end-to-end solutions: requirements analysis, schematic and PCB layout, high-quality JLCPCB fabrication, firmware, calibration, PC-side software, and documentation.

Embedded C/C++PCB Design (EasyEDA) Signal ConditioningRaspberry Pico ArduinoPython CMSIS-DSPCPP SPI / I2C / UARTADC Front-End FreeRTOSRS-485 Modbus
Core Expertise
Data Acquisition Systems
Primary MCU
RP2350 / ESP32-S3 / RP2040
Analog Design
In-Amp, Anti-Alias Filter, Precision Ref
Signal Processing
FIR/IIR Filter, FFT, Lock-in, STA/LTA
Output Interface
USB-CDC, UART, RS-485, LoRa, SD Card
Studio
Degan Circuit — Indonesia
Projects
Flagship project — Seismic & Biomedical Sensor System
01
Sensor Platform
Seismic and Bioelectrical Measurement System
One integrated project for vibration monitoring with MMA MEMS accelerometer + geophone, 16-bit ADC acquisition at 800 SPS with 1–1000 Hz bandwidth, and biomedical impedance/EMG/ECG sensing from 0.4–100 Hz.
MMA MEMS Geophone BIA / ECG Raspberry Pi Pico
ADC16-bit · 800 SPS
Seismic Range1–1000 Hz
Biomedical0.4–100 Hz
PCBJLCPCB Quality
Prototype Board Bioimpedance BIA
Signal Analysis
Realtime 3-Channel Plot & FFT
IC Die Art Background
Technology Stack
Hardware & Software Capabilities
⚙️
ESP Microcontrollers
S3 / S2 / ESP32 series. Bare-metal HAL/LL, FreeRTOS, DMA, timers, USB stack.
🔌
Raspberry Pico Platform
RP2040, RP2350. Rapid prototyping, sensor interfacing, serial data pipelines.
📡
ADC & Signal Chain
ADS1256, ADS1115, AD5941, AD7190. In-amps, precision refs, anti-alias filters.
ADS1256ADS1115AD5941AD7190
〰️
Signal Processing
CMSIS-DSP FIR/IIR filters, FFT, STA/LTA detection, lock-in amplification, phase detection.
CMSIS-DSPFFT Docs
🔗
Communication
USB-CDC, UART, RS-485 Modbus-RTU, SPI, I2C, LoRa SX1276, CAN. Full protocol stacks.
🖥️
PCB Design
EasyEDA and JLCPCB high-quality fabrication. Multi-layer, impedance-controlled board design with EMC-conscious layout and full DFM validation.
EasyEDAJLCPCBSMT AssemblyJLCPCB Quality
🐍
Python Interface
pySerial, NumPy, SciPy, Matplotlib. PC-side dashboards, data logging, post-processing tools.
pySerialNumPySciPyMatplotlib
📊
MATLAB / Analysis
Filter design, frequency response, system identification, signal characterization, calibration.
MATLABSignal ToolboxControl Toolbox
Gear Process Art
Process
Engineering Methodology
01
Requirements
Define measurement goals, signal bandwidth, accuracy targets, power budget, and deployment constraints.
02
Architecture
Select ADC topology, MCU platform, communication protocol, and analog signal chain strategy.
03
Schematic & PCB
Full analog front-end design, signal conditioning, EMC-conscious layout, and design review.
04
Firmware
Embedded C/C++ drivers, ISR design, DSP routines, communication stacks, and RTOS tasks.
05
Validation
Calibration, noise floor measurement, field testing, documentation, and handover.
Have a precision measurement project?Let's build it.

Whether it's a seismic monitoring station, an electrochemical impedance analyzer, or a custom embedded acquisition system — Degan Circuit delivers complete, production-ready engineering solutions.

WhatsApp
0857-0802-8369
→
E-mail
sidiqfathur@gmail.com
→
Studio
Degan Circuit
Location
Malang, Indonesia
Availability
Open for Projects
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