Power ON Delay Switch
Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED...
Continue ReadingChameleonMini – A Versatile NFC Card Emulator
ChameleonMini is a programmable tool for NFC Cards analysis and emulation. It helps you to emulate and clone contactless cards, read RFID tags and sniff RF data. The credit-card shaped ChameleonMini is a versatile tool for practical NFC and RFID security analysis, compliance and...
Continue ReadingVisuino – visual programming environment for Arduino
Visuino is the latest software developed by Mitov Software which allows you to program your Arduino boards using a graphical interface. So far only the official boards are supported but more will come. Using Visuino you can easily create complex programs using drag and drop interface...
Continue ReadingMIDI to USB Adapter with Teensy
Joonas Pihlajamaa wanted to connect his keyboard to his Macbook and for that reason he build a MIDI to USB interface using Teensy board, an optocoupler and some resistors. Thankfully, I had a MIDI connector and a high-speed optocoupler at hand, and with these I could implement a MIDI...
Continue ReadingOSHChip – general purpose processor board in DIP format
OSHChip is a general purpose processor board based on ARM Cortex-M0 32 bit processor running at 16 MHz. It includes 2.4 GHz Bluetooth Low Energy radio and a broad range of built-in Peripherals. It features 256 KBytes of Flash memory for program and data and 32 KBytes of SRAM. All this...
Continue ReadingVL53L0 – Ultra-fast distance sensor
by Harry Baggen @ elektormagazine.com STMicroelectronics has launched their second-generation distance senor VL53L0, which is based on STM’s popular FlightSense technology. This sensor is suitable for use in smartphones and tablets to make quick distance measurements for an...
Continue Reading10 steps to selecting a microcontroller
Jacob Beningo @ edn.com discuss on how to select the right mcu for your next project based on hardware and software architecture. Selecting the right microcontroller for a product can be a daunting task. Not only are there a number of technical features to consider, there are also...
Continue ReadingUnipolar Stepper Motor Driver Circuit
This unipolar stepper motor driver circuit is used to drive a 12V unipolar stepper motor with a current rating of 1.25A. It uses PCA9537 IC, which is a 10-pin CMOS device that provides 4 bits of General Purpose I/O (GPIO) expansion with interrupt and reset for I2C-bus/SMBus...
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