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Articles by Rinme Tom
Arduino Email Alerts Using IoT Cloud
Things used in this project × 1 DHT11 Temperature & Humidity Sensor (4 pins) × 1 × 1 × 1 Project Overview In this Send Email Notifications using Arduino, you’ll learn how to send automated email notifications using an Arduino board connected to an IoT cloud platform. This setup is useful for real-time alerts in applications like home security, environmental monitoring, or industrial systems.
Efficient DIY Joule Thief Voltage Booster Guide
2026-02-04 | By Rinme Tom License: General Public License Breadboards Jumper Wires Circuit Playground What is a Joule Thief Voltage Booster? A Joule Thief Circuitis a minimalist boost converter circuit designed to extract and reuse energy from very low-voltage sources — such as almost-dead batteries — by stepping up their voltage to light an LED or power other small loads. This clever circuit achieves voltage boosting through rapid switching and magnetic energy conversion.
E88 Drone Teardown: Inside a Beginner Quadcopter
2026-02-04 | By Rinme Tom License: General Public License Comprehensive E88 Drone Teardown & Hardware Breakdown The E88 quadcopter is a compact, entry-level consumer drone designed for recreational flying and basic electronics exploration.
Build a 6-DOF Arduino Robotic Arm from Scratch
2026-02-04 | By Rinme Tom License: General Public License Robot Kits Arduino ð Overview Robotic manipulators are essential in both industrial automation and hobby robotics. This step-by-step project shows you how to build an Arduino Robotic Arm with a 6-degree-of-freedom (6-DOF) robotic arm driven by servo motors and controlled by an Arduino microcontroller.
Precise Timekeeping with Raspberry Pi Pico & DS3231 RTC
2026-02-03 | By Rinme Tom License: General Public License Breadboards Jumper Wires Arduino Introduction Accurate timekeeping is a cornerstone of many embedded applications—whether it’s logging sensor data with timestamps, scheduling events, or powering automation systems. In this guide, you’ll learn how to interface a real-time clock with a Raspberry Pi Pico microcontroller using the I²C protocol and display time, date, and temperature on a 16×2 I²C LCD.
Interface Reyax RYLR999 LoRa Module with Arduino
ATTENTION: Due to high order volume, orders may require an additional business day to process. English Español USD DigiKey customers in the United States can select from a range of delivery options, including Ground shipping at $8.49 and 2-Day at $13.99 Credit account for qualified institutions and businesses Payment in Advance by Wire Transfer More Products From Fully Authorized Partners Average Time to Ship 1-3 Days. Please see product page, cart, and checkout for actual ship speed.
Wireless Stepper Motor Controller with ESP32 and TMC2240
ESP32-S3: Interfaces with the TMC2240 via SPI for motor control signals TMC2240: Drives the stepper motor and communicates with the ESP32 for control AS5600 Encoder: Provides real-time position feedback to the ESP32 USB-C PD Controller: Handles power input and distribution LDO Regulator: Supplies regulated 3.3V to the ESP32 and other peripherals. Programming the ESP32: Utilize the Arduino IDE or PlatformIO to write the firmware for the ESP32.
How to Boot Raspberry Pi from USB without SD Card
2025-09-09 | By Rinme Tom License: General Public License Raspberry Pi SBC The guide “How to Boot Raspberry Pi from USB without SD Card” provides a comprehensive tutorial for users looking to replace unreliable SD cards with faster, more durable USB boot options across various Raspberry Pi models. Why USB Boot for Raspberry Pi Booting from USB offers key performance and reliability improvements versus SD cards.
Interface PNP-500 Receipt Printer with Arduino Code & Circuit Diagram
2025-09-03 | By Rinme Tom License: General Public License Printer Enclosures Thermal Imaging Arduino ESP32 Build a compact, IoT-capable thermal printer using an ESP32 and a PNP-500 thermal printer module. This versatile system can print receipts, QR codes, barcodes, images, and invoices — ideal for smart home displays, DIY POS, or IoT data logs. Demonstrate UART/TTL communication and ESC/POS print commands with ESP32. Implement printing of images, QR codes, barcodes, and formatted invoices.
How to Build a Raspberry Pi Pico GPS Tracker using the SIM800L GSM module, Neo 6M GPS module with Raspberry Pi
2025-08-22 | By Rinme Tom License: General Public License Cellular GPS Arduino Raspberry Pi MCU This GPS tracker creates a professional-grade IoT device that transmits real-time location data over cellular networks. The system uses the GeoLinker API from CircuitDigest Cloud for data visualization and includes intelligent offline data buffering.
Arduino Location Tracker using SIM800L GSM Module and NEO-6M GPS Module
2025-08-04 | By Rinme Tom License: None GPS Programmers Arduino Project Overview This tutorial showcases how to construct a low-cost real-time GPS tracking system with Arduino UNO R3 by integrating the NEO-6M GPS module for satellite positioning and the SIM800L GSM module for cellular communication data transmission. The project provides an end-to-end DIY solution to commercial GPS trackers, sparing users monthly subscription costs without losing professional-level tracking functionality.
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