8 Channel Optically Isolated IO Board
Opto-Isolated I/O Board offers a compact & convenient way to interface industrial type inputs/outputs to your microcontroller boards, Signal transmission between circuits of different potentials and impedances etc. Specifications 4 opto-isolated inputs & 4 opto-isolated...
Continue ReadingUltra-low power, dual-band wireless microcontrollers from TI
Intended for tasks such as monitoring IoT networks from a handheld device, Texas Instruments' latest series of microcontrollers are single-chip Sub-1 GHz plus Bluetooth low energy ICs. By Graham Prophet @ www.edn-europe.com As part of TI’s pin-to-pin and software...
Continue ReadingInfinite Noise True Random Number Generator
waywardgeek @ github.com shares his USB TRNG: The Infinite Noise TRNG is a USB key hardware true random number generator. It uses what I call a "Modular Entropy Multiplier" architecture (previously Infinite Noise Multiplier or FireBug). Besides being simple, low-cost, and fast, it is...
Continue ReadingA20 Plus – WIFI/GPRS/GSM/CAMERA module
Raymond Tunning shares the information he found about the new A20 modules bought from taobao. A20 Plus - WIFI/GPRS/GSM/CAMERA module -...
Continue ReadingTiny Lisp Computer using ATmega328
The Tiny Lisp Computer is a self-contained computer programmed in Lisp. Some programming examples are included in the author's website. This article describes a self-contained computer with its own display and keyboard, based on an ATmega328, that you can program in Lisp. You can use...
Continue ReadingOSHW Logo Generator
Here is a proposal for a new OSHW logo which uses release symbols to know exactly what the license covers. The KEYS used are: S = Schematic P = PCB F = Firmware and/or software M = Mechanical CAD files D = Design Documentation B = Bill Of Materials C = License used allows for...
Continue Reading30A, PCB-level supply monitor has integrated 300 microΩ sense resistor
Designed to simplify board-level energy measurements, the LTC2947 power and energy monitor for 0V to 15V DC supply rails eliminates the need for an external sense resistor to measure current. by Graham Prophet @ edn-europe.com Choosing a sense resistor, Linear says, is not an easy...
Continue Reading7 Segment LED Based SPI Display using 74HC595
Single Digit Big Display module using 74HC595 IC project will display large size 7 segment single digit number. 3.5inch height, which can be visible over large distance. More digit can be connected serially to each other easily connector. This circuit is a single digit seven...
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