Project Hub /Test & Measurement Instrumentation/Function & Waveform Generators/Logic Analyser Cum Functional Generator

Intermediate

ESP8266

₹1,500 – ₹5,000

3 – 6 Hours

Partial Kit

Logic Analyser Cum Functional Generator

Design a portable, pocket-sized 4-channel logic analyzer combined with a function generator using ESP8266 and AD9833.

Originally published on ElectronicsForU

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

NodeMCU ESP8266 WIFI development board based on CP2102 Rs. 660.00
USB to UART/ESP8266 Adapter Programmer for ESP-01 WiFi Modules with CH340G Chip Rs. 99.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Supercap / UPS / Power Bank Module
Enclosure / Box / Case

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How It Works

The Logic Analyser Cum Functional Generator project combines two essential test and measurement instruments into a single portable device built around an ESP-12F or ESP8266 board. For signal generation, the system utilizes an AD9833 Function Generator module, which is a programmable waveform generator capable of producing sine, triangle, and square wave outputs at various frequencies. The ESP8266 microcontroller communicates with and controls the AD9833 module using dedicated software libraries within the Arduino IDE. On the analysis side, the ESP8266 leverages a specialized Logic Analyzer library to capture digital signals across multiple channels. This captured logic data is transmitted to a computer running Sigrok PulseView, an open-source signal analysis software, allowing users to visually inspect and decode digital communication protocols and microcontroller input/output states in real time. The entire assembly is powered and programmed via an FTDI programmer, connected with standard wiring, and housed neatly inside a protective enclosure for field-ready testing and prototyping.

Why Build This

Create a portable, pocket-sized diagnostic tool for debugging digital circuits and testing microcontroller I/O signals without needing bulky benchtop equipment.

Generate custom waveforms and test frequencies on-the-fly to validate prototype analog and digital electronic designs during undergraduate engineering labs.

Bridge software analysis tools like Sigrok PulseView with low-cost microcontroller hardware to build affordable instrumentation for academic or personal workspaces.

Real-World Application

Debugging digital circuits, testing microcontroller input/output signals, and generating custom waveforms for prototyping electronics.

Skills You'll Learn

SPI communication protocol

DDS waveform generation

digital signal capture and analysis

microcontroller firmware development

UART serial programming

Safety Precautions

Ensure correct voltage levels (3.3V) when connecting components to avoid damaging the ESP8266 and associated modules.

Technology Tags

ESP8266

AD9833

SIGROK

PULSEVIEW

LOGIC ANALYZER

FUNCTION GENERATOR

ARDUINO IDE

SPI

FTDI

Frequently Asked Questions

Can this project be powered directly through a standard USB cable?

While the ESP8266 and AD9833 operate at 3.3V, an FTDI programmer or an onboard 3.3V regulated power supply must be used to ensure correct voltage levels and prevent component damage.

What software do I need to view the logic analyzer signals?

You will need the Arduino IDE to program the ESP8266 board with the required logic analyzer firmware, and the Sigrok PulseView software on your computer to visualize and decode the captured digital signals.

Is the AD9833 module capable of generating high-voltage signals?

No, the AD9833 is a low-voltage signal generator meant for testing and prototyping logic circuits; it does not produce high-voltage power outputs.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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