VoltJots Issue 41

NEWS & ARTICLES

OKI reaches new heights with a 124-layer PCB

Paving the way for advanced applications in AI, defence, aerospace, and communications, OKI Circuit Technology's new 124-layer printed circuit board breaks the 108-layer limit without adding thickness.

Celebrating women leaders in electronics

From the Women Leaders in Electronics Awards 2025, these outstanding individuals and companies have shown remarkable excellence, commitment, and innovation in the electronics industry.

How California is using AI and IoT to reinvent traffic

California's tackling its notorious traffic with smart tech, using real-time data from sensors and connected vehicles to create responsive networks that improve safety and predictability in commutes.

How ultrasonic ToF sensors boost indoor drone navigation

Ultrasonic time-of-flight sensors help drones detect tricky obstacles like glass and mirrors, reducing crashes and improving safety in indoor environments.

1-kW laser is brilliant for automotive LiDAR

ROHM's new RLD8BQAB3 laser diode delivers 1 kW output for advanced driver-assistance systems and other applications, providing long-distance accuracy in LiDAR systems.

Morse Micro wins Product of the Year award

Morse Micro, a leading provider of Wi-Fi HaLow chips, has won the 2025 IoT Evolution Industrial IoT Product of the Year Award for its MM8108 System-on-Chip (SoC).

PROJECTS & TUTORIALS

Play music in the air!

Air Piano, a hands-free instrument using Arduino, lets you play music in mid-air with just your hand movements.

Real-time AI vision camera

Build a real-time AI vision camera with the Realtek AMB82-Mini Board that streams live video, captures images for AI analysis, and displays results on an ILI9341 TFT screen.

Generating a sawtooth from a square wave

Alternative sawtooth waveform generation eliminates the need for a negative rail by using a flying capacitor to reset the integrator, simplifying the circuit and improving precision.

Introducing the Yendor Flex Glove

The Yendor Flex Glove uses an IMU, flex sensors, and touch input to control LEDs, vibration, and sound, with conductive thread stitching components into a wearable, washable fabric.

Build your own budget-friendly Arduino Nano oscilloscope

Create a compact oscilloscope using an Arduino Nano and SH1106 OLED display to visualise waveforms and measure frequency, voltage, and duty cycle with basic components and open-source code.

Adding an ADC to the RPi

Get your Raspberry Pi to read analog signals with the MCP3008 analog to digital converter, which turns those signals into digital data for easier sensor connections.

Getting started with ESP32 web servers

This guide covers essential theory and practical examples to help you build your own web servers and learn to control and monitor outputs remotely.

PRODUCTS

The Interrupt - a grown-up Flipper Zero

Powered by a Raspberry Pi Zero 2 W, the Interrupt is a full Linux system in a compact design, featuring a QWERTY keyboard, 3.5" touchscreen, and multiple connectivity options like Wi-Fi, Bluetooth, NFC, and RFID.

Presence sensor can track up to three targets simultaneously

Everything Presence Lite provides a 24GHz mmWave sensor that tracks up to three targets at once, with real-time data and Bluetooth proxy capabilities for easy use with Home Assistant.

Rugged relays go where solid-state switches fear to tread

Relay tech advances with Microchip's 25A sealed power relays and Pickering's 20-kV relay featuring tungsten contacts rated for 100 million operations.

Versatile and user-friendly touchscreen

Transform your Raspberry Pi or other SBC with SunFounder's 10-inch touchscreen that offers a smooth touch experience, runs on a single power cord, and includes basic speakers.