Build a DIY USW indoor positioning system using ESP32 with the Qorvo DWM3000. This tutorial walks you through hardware, firmware, and Python visualisation to create accurate tracking for robotics and IoT projects.
Read more »DIY UWB Indoor Positioning System using ESP32 and Qorvo DWM3000
https://circuitdigest.com –
Category: Microcontrollers Tags:
- Login to post comments
Wearable Air Quality Monitor Pendant using STM32 and SGP40 Sensor
https://circuitdigest.com –
Build a smart wearable pendant that tracks air quality with STM32 and SGP40 sensors, alerting users through LEDs and buzzer notifications for real-time environmental awareness.
Read more »- Login to post comments
Wireless ESP32-Based Stepper Motor Driver with TMC2240
https://circuitdigest.com –
Learn how to build a wireless stepper motor controller using an ESP32-S3 and TMC2240 driver. This detailed tutorial guides you through wiring, custom PCB design, USB-C PD power management, closed-loop control with an AS5600 encoder, and a browser-based UI with real-time status and RGB feedback. Includes Gerbers, BOM, and full source code.
Read more »Category: Microcontrollers Tags:
- Login to post comments
Interfacing ESP32 with Thermal Printer using UART ESC/POS
https://circuitdigest.com –
Technical guide to interfacing ESP32 with thermal printers (PNP-500/RS203) over UART. Explains hardware wiring, power considerations, and implementation of ESC/POS commands for printing text, images, barcodes, and QR codes. Includes detailed circuit diagrams and Arduino code on GitHub.
Read more »Category: Microcontrollers Tags:
- Login to post comments
Boot Raspberry Pi from USB without SD Card Required
https://circuitdigest.com –
This hands-on tutorial explains how to ditch unreliable SD cards and boot your Raspberry Pi models 3B, 3B+, 4, and 5 directly from USB or NVMe. It covers setting up USB-boot for each model—from enabling OTP on Pi 3B to updating EEPROM on Pi 4 and using native USB/PCIe boot on Pi 5, boosting speed, reliability, and convenience.
Read more »Category: Raspberry Pi Tags:
- Login to post comments
Build a Cellular GPS Tracker with Raspberry Pi Pico SIM800L
https://circuitdigest.com –
This step-by-step tutorial walks you through creating a real-time GPS tracker using the budget-friendly Raspberry Pi Pico microcontroller, Neo 6M GPS receiver, and SIM800L GSM module. Learn circuit wiring, Arduino IDE setup, GeoLinker cloud integration, and offline buffering to ensure reliable IoT tracking anywhere.
Read more »Category: Raspberry Pi Tags:
- Login to post comments
Understanding SR Latches: Set-Reset Latch, Gated & Clocked Versions
https://circuitdigest.com –
Learn the basics of the SR latch, Set-Reset memory circuit, in digital electronics. This tutorial covers truth table, NOR/NAND implementations, gated and clocked variants, and working principles.
Read more »Category: Electronic Circuits Tags:
- Login to post comments
Clocked SR Flip Flop: Complete Guide with Circuit and Truth Table
https://circuitdigest.com –
Learn how to build a clocked SR flip-flop using NAND gates. Understand its working principle, truth table, and circuit diagram for designing stable digital memory and control logic circuits.
Read more »Category: Electronic Circuits Tags:
- Login to post comments
GT-U16 RTK L1+L5 GPS Module with Arduino
https://circuitdigest.com –
Learn how to interface the GT-U16 RTK L1+L5 GNSS module with Arduino, decode NMEA data, and analyze real-time satellite signals using iNavTool. Covers RTK concepts, RTCM corrections, and practical setup tips, Perfect for DIY navigation, drones, and mapping applications.
Read more »- Login to post comments
How to Set a Static IP Address on Raspberry Pi?
https://circuitdigest.com –
Learn how to set a static IP address on your Raspberry Pi using NetworkManager and nmcli.This tutorial covers step-by-step methods for both terminal and desktop GUI, ensuring reliable network access for SSH, web servers, and IoT projects.
Read more »Category: Raspberry Pi Tags:
- Login to post comments
