Dual-Level Float-Cum-Boost Charger with Pre-Charge for 12V – 3 to 6Ah Sealed Lead Acid (SLA) Batteries
PowerTop Stories

Dual-Level Float-Cum-Boost Charger with Pre-Charge for 12V – 3 to 6Ah Sealed Lead Acid (SLA) Batteries

This SLA Battery charger project is the right choice if you want to obtain maximum battery service life and capacity, along with acceptable recharge time and economy, constant current, constant voltage, and even charge a deeply discharged battery. The project contains all the necessary...

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Pokit Pro is World’s Smallest Wireless Multimeter, Oscilloscope, and Logger
ToolsTop Stories

Pokit Pro is World’s Smallest Wireless Multimeter, Oscilloscope, and Logger

We saw Pokit Pro’s second Kickstarter campaign in late 2019. It was a crowdfunding project with AU$30,000 and counting in the November end of 2019. The company’s current press release in 2021 says Pokit PRO has raised over AU$1.66 million from nearly 10,000 backers. Pokit...

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Solo V2 – Your Safety Net Against Phishing
Top Stories

Solo V2 – Your Safety Net Against Phishing

A campaign was launched on Kickstarter for an open security key to protect your Gmail, Twitter, GitHub & more called Solo V2. Solo V2 is from the team that brought the first open-source FIDO2 security key. Modern security solutions are often expensive, making them unavailable to...

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Sensorless FOC 3 Phase Low Power Brushless BLDC Motor Driver
MotorTop Stories

Sensorless FOC 3 Phase Low Power Brushless BLDC Motor Driver

Driving a 3-phase brushless DC motor is very easy with this project. It is a simple and easy-to-build project that requires only a few external components. The circuit is based on AMT49400 IC which is an advanced 3-phase, Sensorless, brushless DC (BLDC) motor driver with integrated...

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High Side Switch with Input Overvoltage and Overcurrent Protection
PowerTop Stories

High Side Switch with Input Overvoltage and Overcurrent Protection

The project here is a 48V protected, high side switch designed to switch a 5A output load from input voltages from 8V to 48V. The circuit helps the user to easily ON/OFF the high current and voltage load with over-voltage lockout and over-current protection. The wide input range and low...

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1.2V to 50V @ 3A – Adjustable Power Supply with 55Vdc Input
Power supplyTop Stories

1.2V to 50V @ 3A – Adjustable Power Supply with 55Vdc Input

The project presented here is a wide input voltage range non-isolated DC-DC Converter, that provides a regulated, adjustable output voltage. The operating input supply is 55V DC and output regulated from 1.2V to 50V DC. The project built using LM2576HVT-ADJ IC. Screw terminals provided...

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Tiny Tri-color E-Ink display for Wemos D1 Mini board sells for $10
LCD/OLEDTop Stories

Tiny Tri-color E-Ink display for Wemos D1 Mini board sells for $10

Lolin has launched a small 2.13" tri-color E-Ink display that is compatible with D1 mini, D1 mini Pro, and D32 Pro boards. Specifications 2.13" diagonal Tri-Color (red/black/white) ePaper/eInk display 212x104 pixels Driver IC: UC8151D Compatible with D1 mini, D1 mini...

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$19 Button Size Node 3 is an Arduino Pro-mini board with on-board LoRa
ArduinoIoTTop Stories

$19 Button Size Node 3 is an Arduino Pro-mini board with on-board LoRa

Electronic enthusiast and hobbyist, Koresh, has designed an Arduino IDE compatible microcontroller for home automation and IoT, called the Button Size Node 3. Button Size Node 3 is a low-cost wireless Arduino Pro-mini board with on-board LoRa RFM 95 or RFM 69 HW(CW) radio, external...

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