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Jobit Joseph

As seen in: Digikey, Circuit Digest
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Articles by Jobit Joseph

Getting Started with M5Stack Tab5: ESP32-P4 Touchscreen Development Board

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By Jobit Joseph
| Circuit Digest
Jobit Joseph Author November 6, 2026 Large touchscreen development boards are useful when a project needs more than a microcontroller and a few expansion pins. A display, camera, audio system, wireless connectivity, storage and industrial interfaces can turn the development board itself into the starting point for a complete embedded product. The M5Stack Tab5 takes this approach with a 5-inch 1280 × 720 touchscreen and a dual-processor architecture built around the ESP32-P4 and ESP32-C6.
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Learn FPGA Design with the Microchip veryVerilog Kit: From Setup to Your First Design

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By Jobit Joseph
| Circuit Digest
Jobit Joseph Author November 5, 2026 Most engineers who work with microcontrollers eventually run into the same challenge. A project needs to respond faster than firmware can, or it requires several digital signals to be combined in hardware. While these tasks can often be handled with interrupt service routines or external logic ICs, the solution quickly becomes complex as the design grows. This is where FPGAs excel, offering highly flexible hardware that can process multiple signals in parallel.
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Build Your Own USB-C Power Meter

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By Jobit Joseph
| Circuit Digest
Complete Bill of Materials (BOM) for the USB-C Power Meter ValueManufacturerDigiKey Part NumberDatasheet LinkQuantity 4.7uF 0603 TDK C1608X5R1V475M080AC Datasheet 2 1uF 0402 Murata Electronics 490-10017-1-ND Datasheet 2 7pF 0402 Murata Electronics CC0402CRNPO9BN7R0 Datasheet 2 100nF 0402 Murata Electronics 490-10700-1-ND Datasheet 5 10R 0603 YAGEO RC0603FR-0710RL Datasheet 1 5.1K 0402 YAGEO 311-5.10KLRCT-ND Datasheet 2 4.7K 0402 YAGEO RC0402JR-074K7L Datasheet 3 10K 0402 YAGEO...
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Getting Started with the PUI Audio AMP2X15 Audio Amplifier Board and Speakers

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By Jobit Joseph
| Circuit Digest
Adding a speaker to an embedded project is not always as simple as connecting it directly to a microcontroller or single-board computer. Most audio sources provide a relatively low-level signal, while a speaker needs more power to produce useful sound output. This is where an audio amplifier becomes important. The PUI Audio AMP2X15 is designed to bridge this gap, providing a compact two-channel amplification solution for driving speakers from a low-level audio source.
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Getting Started with ESP32-P4X-EYE: ESP32-P4 Vision Development Board

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By Jobit Joseph
| Circuit Digest
Published  October 2, 2026 Vision development boards are useful when an embedded project needs to combine image capture, local display, audio input, storage and wireless connectivity in a single platform. The ESP32-P4X-EYE takes this approach around the ESP32-P4, adding an ESP32-C6 wireless module, a 2MP MIPI-CSI camera, a 1.54-inch SPI LCD, a digital microphone, MicroSD storage, USB interfaces and a 2 × 10-pin expansion header.
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Build Your Own FIDO2 Security Key with nRF52840 and OpenSK

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By Jobit Joseph
| Circuit Digest
Complete Bill of Materials (BOM) for the OpenSK FIDO2 Security Key Value Manufacturer DigiKey Part Number Datasheet Link Quantity 4.7uF 0402 Murata Electronics 490-GRM155R61A475MEAAJCT-ND Datasheet 3 100pF 0402 Murata Electronics 490-5922-1-ND Datasheet 1 1uF 0402 Murata Electronics 490-10017-1-ND Datasheet 2 8pF 0402 Murata Electronics 490-13294-1-ND Datasheet 2 100nF 0402 Murata Electronics 490-10700-1-ND Datasheet 5 10nF 0402 Murata Electronics 490-1313-1-ND Datasheet 1 820pF 0402 Murata...
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JioFind 4G GPS Tracker Teardown: A Complete Inside-Out Hardware Breakdown

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By Jobit Joseph
| Circuit Digest
Published  September 22, 2026 Bluetooth trackers like Apple AirTags and Samsung SmartTag are a convenient way to locate misplaced items nearby, but their dependence on nearby smartphones limits their usefulness over long distances. Cellular GPS trackers overcome this limitation by communicating directly over the mobile network, allowing them to report their location from anywhere with network coverage.
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Arduino VENTUNO Q Opens Pre-Orders at $299 with Dual-Brain Architecture and 40-TOPS AI

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By Jobit Joseph
| Circuit Digest
Arduino has opened pre-orders for the VENTUNO Q, a new edge-AI development platform built around Qualcomm’s Dragonwing IQ8 processor. The board is aimed at developers building robotics, computer vision, industrial automation and other systems where AI needs to interact with the physical world. According to Ankit Singh, Arduino’s India lead, the introductory pricing will remain in place for two months, with no limit on the number of boards that can be pre-ordered during this period.
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Espressif Starts Mass Production of ESP32-S31 Wireless SoC for Next-Generation AIoT Devices

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By Jobit Joseph
| Circuit Digest
Espressif Systems has officially started mass production of its new ESP32-S31 wireless microcontroller, making it available to developers and manufacturers worldwide. The latest addition to the ESP32 family is built for demanding AIoT applications, combining faster processing, modern wireless standards, and multimedia support in a single chip.
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Pala Note - a Pocket-Sized AI Voice Note Device

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By Jobit Joseph
| Circuit Digest
Many of us have experienced the frustration of having a great idea and then forgetting it moments later. While smartphones can help capture those thoughts, they often come with a different problem: distractions.
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ESP32-Powered Laser Projector Brings Retro Vector Graphics Back to Life

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By Jobit Joseph
| Circuit Digest
A new DIY laser projector project from breq.dev is getting attention in the maker community for mixing old-school vector graphics with modern embedded hardware. Built by Brooke Chalmers and Mia Kiesman, the system uses a pair of galvanometer mirrors to steer RGB laser beams and draw graphics directly in the air. Instead of using a normal display panel, the projector creates smooth vector-style images similar to classic arcade machines and oscilloscopes.
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Airtel M2M SimCard

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By Jobit Joseph
| Circuit Digest
The Airtel SIM Management feature allows you to manage your IoT SIM cards directly from the Circuit Digest Cloud Platform. You can view SIM details, monitor data usage, submit KYC documents, and track device connectivity. To access the Airtel M2M dashboard, login to your Circuit Digest Cloud Account. Once Logged in you can click on view button under the GeoLinker section. Once you are in the GeoLinker Dash board click on the Airtel IOT SIM, which will redirect you to the Airtel IOT SIM  dashboard.
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Arm AGI CPU Debuts with 136 Cores, Focuses on AI Infrastructure

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By Jobit Joseph
| Circuit Digest
Arm has introduced the AGI CPU, its first internally developed data center processor, marking a transition from its long-standing IP licensing model to delivering complete silicon solutions for cloud infrastructure. The launch is closely aligned with the growing demands of artificial intelligence workloads, particularly those requiring sustained, multi-step computation rather than traditional burst-style processing.
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Build a Precision Digital Micro Current Meter with STM32

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By Jobit Joseph
| Circuit Digest
Published  November 28, 2025 Keeping track of extremely low current levels is often essential when developing or testing low-power devices, especially in the field of embedded systems and battery-operated electronics. This comprehensive guide shows you how to build a precision digital micro current meter using an STM32 microcontroller and professional-grade analog components. It is built around an STM32 microcontroller and features an OLED display for real-time readouts.
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ESP32 C3 OLED - Get Time and Date From Internet

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By Ron Cutts, Don Wilcher, Sarah Aman, Jobit Joseph
| Digikey
2025-06-03 | By Ron Cutts License: General Public License Displays Real Time Clocks (RTCs) Wifi Arduino ESP32 Step 1: What You Will Need ESP32 C3 OLED Visuino program: Download Visuino Step 2: Start Visuino, and Select the DIY More ESP32 C3 0.42" OLED Board Type Start Visuino as shown in the first picture Click on the "Tools" button on the Arduino component (Picture 1) in Visuino When the dialog appears, select "DIY More ESP32 C3 0.42" OLED" as shown on Picture 2 Note: there are a few...
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Arduino OLED Countdown Timer Using Visual Programming

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By Ron Cutts, Value" component, Mirko Pavleski, Jobit Joseph
| Digikey
2025-06-06 | By Ron Cutts License: General Public License Addressable LEDs Displays Encoder LED / Display Drivers LED Matrix LEDs / Discrete / Modules Real Time Clocks (RTCs) Arduino Use a rotary encoder to set the countdown duration Start the timer by pressing the encoder button Watch the countdown update in real time on an OLED display Trigger a Red LED when the countdown reaches zero All done with no coding, just simple drag-and-drop blocks in Visuino! Perfect for beginners and makers...
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