electronics News - Page 19 of 21 - CNX Software

September 30, 2016September 30, 2016 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Meet STEMTera Smart Breadboard with Built-in Arduino Board, and LEGO Compatibility (Crowdfunding)

From time to time, you see new products on the market with an idea that – in hindsights – seems to simple and obvious that it makes you wonder why you or others had not thought about it a long time ago. Most people will use an Arduino board with a breadboard for their project, so it makes perfect sense to combine both into a single product, and that’s exactly what STEMTera has done, when they designed a breadboard containing an Arduino compatible board, supporting Arduino UNO R3 shields, and usable with LEGO bricks. STEMTera breadboard specifications: MCU (Arduino) – Microchip/Atmel ATmega328P-AU MCU @ 16 MHz with 2KB SRAM, 32KB flash, and 1KB EEPROM MCU (USB-to-TTL) – Microchip/Atmel ATmega16U2 MCU @ 16 MHz with 512 bytes SRAM, 16KB flash, and 512 bytes EEPROM Expansion Arduino MCU – 14 digital I/Os (including 6 PWM), 6x analog input; 5V I/Os; DC current […]

September 7, 2016September 7, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Espotek Labrador is s $25 5-in-1 Lab-on-a-Board with Oscilloscope, Waveform Generator, etc… (Crowdfunding)

We’ve already seen ultra cheap (and low end) electronics lab tools like DSO138 oscilloscope kit for $23, or the $5 USB123 USBee AX logic Analyzer, but EspoTek Labrador combines 5 electronics lab equipments into a single board that claims to act as an oscilloscope, a waveform generator, a variable power supply, a logic analyzer and a multimeter for just $25. EspoTek Labrador specifications and key features: MCU – Atmel ATXMEGA32A4U 8-bit AVR MCU @ 32 MHz with 32KB flash, 4KB SRAM, and 1024 bytes EEPROM Functions 2 channels oscilloscope up to 750ksps, ~100kHz bandwidth, -20 to +20 V range 2 channels waveform generator up to 1 MSPS supporting sinusoidal, square, triangular, sawtooth, and arbitrary waveforms 4.5 to 15V power supply up to 1.5W max 2 channels logic analyzer up to 3 MSPS per channels Multimeter with voltage, intensity, resistance, and capacitance functions USB – micro USB port to connect to […]

September 6, 2016September 6, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

UNI-T UT353 is a $15 Lightweight Sound Level Meter

Since some of the products I review come with a fan, I checked some sound level meters a couple of years ago, but since they were a little too expensive for my limited use, I skipped for the time being. However, while browsing some promotions or new arrivals on DealExtreme, I’ve come across UNI-T UT355 “Noise Detector Decibel Noise Tester” which sells for $15.56 including shipping. UNI-T UT353 mini sound meter specifications: Noise Levels & Accuracy – 30 to 130 dB with 0.1 dB resolution, +/- 1.5 dB accuracy Sample rate – Fast: 125ms; Slow: 1 second Measurement features – MAX/MIN, Data hold, overload indication (OL) Display – 1.64″ LCD display with backlight Buttons – Power, FAST/SLOW selection, MAX/MIN/normal selection, HOLD/BL for data hold (short press) or turning on/off the backlight (long press) Power Supply – 3x AAA batteries; 5 minutes auto power off Power Consumption – Active: < 40 […]

June 15, 2016June 15, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Aeroscope is a Bluetooth 4.1 Wireless Oscilloscope Probe Using your Android Tablet or iPad for Display (Crowdfunding)

Oscilloscopes used to be rather bulky equipment, but recent full featured oscilloscopes have come down in size, and even become portable and battery operated with products such as DSO Quad. But since many of us already own Android tablets or iPads, Aeroscope wireless oscilloscope probe is quite a neat solution as it transmits images of the waveform over Bluetooth 4.1 to your tablet. Aeroscope specifications: Analog Bandwidth – 100 MHz Sample Rate – 500 M samples/second Connectivity – Bluetooth 4.1 with 200-ft range Input Range – +/-40 V DC Accuracy – +/- 3% Offset Range – +/- 40V or +/- 20V offset for 20mV/div setting Sample Memory Depth – 10k Input Impedance – 10MΩ || 12pF Resolution – 20 mV/division to 10 V/division Battery – 950 mAh battery good for 4 to 8 hours of use depending on settings Activity sensor – (for extended use) Dimensions – 118 x 30 […]

May 28, 2016September 30, 2022 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

ELLO 2M is a DIY Computer with a Keyboard, a 7″ Touchscreen Display and a Prototyping Area (Crowdfunding)

The traditional way to play with electronics is to get a board (e.g. Arduino), a breadboard to wire components & sensors to the board, and a computer for programming. ELLO 2M combines all that into a single piece of hardware with a 7″ touchscreen display, a Microchip PIC32 micro-controller board, a solderless prototyping area made of PGA sockets, and a keyboard. ELLO 2M hardware specifications: MCU – Microchip PIC32MX470 32-bit micro-controller @ 120 MHz with 128kB RAM (512kB RAM in the ELLO 2M “hacker” versions) Extra System Memory – Optional on-board serial non-volatile data RAM Storage – 3x micro-SD cards (one permanently built-in and two for removable storage); internal serial FRAM Display – 7″ LCD touch-screen panel with 800×480 pixel resolution Audio – Small speaker and buzzer Keyboard – Replaceable QWERTY keyboard Connectivity – 2.4GHz RF communication module with simple communication protocol Expansion – Expansion receptacle, electronic prototyping space with […]

May 13, 2016May 13, 2016 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

The “One Dollar Board” Project Aims to Teach Electronics in Developing Countries (Crowdfunding)

I’ve already tried a one dollar board based on STM8s in the past, but it required a separate STLink debugger, installing a toolchain, and a few other steps. The “One Dollar Board” project, born in Brazil, has different objectives, as it aims to provide an easy way for pupils around the world to getting started with electronics, by simply connecting it to the USB port of a computer or board capable of running the Arduino IDE, and following the instructions printed on the board. One Dollar Board specifications: MCU – 8-bit MCU (likely Atmel AVR) with 8 KB flash 6x GPIO (input and output ports) USB – 1x USB port for power and programming Misc – 2x LEDs, reset button Expansion – Spaces for Wifi ESP8266, Atmel 24C256 serial EEPROM (256 KB), and L293 Driver motor (unclear where though) Power Supply – 5V via USB Dimensions – Compatible with Arduino […]

April 4, 2016April 4, 2016 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

Tiny Microwave Radar Module Detects Movements Up to 9 Meters Away for $2

PIR sensors are used to detect motion for example to turn on or off a light bulb when motion is detection. One such sensor is HC-SR501 motion detector, which costs around $1, and is tiny (32 x 24 mm), but not quite thin due to the design that needs to capture infrared light, with an height of around 2 centimeters. If you’d like something almost as cheap, just as small, but much thinner, microwave radar modules could be a good alternative. XYC-WB-DC is one of those modules with the following specs: Operating Frequency – 5.8 GHz Detection angle – 360° Detection range – 6-9 meters Working Voltage – 3.3-20VDC; Standby current – <3mA; Transmit power – <2mW; Dimensions – 32 x 23 mm Operating temperature range – -20 ~ +80 Centigrade; Potential advantages over PIR sensors include wider detection angle, and lower power consumption, HC-SR501 datasheet reports respectively 120 degrees […]

March 30, 2016March 30, 2016 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

DIGIO-128 Board Adds 128 GPIOs to Your Development Board

If you run out of GPIOs on your board, the easy way is to add an I2C GPIO expander, but those are normally limited to 8 or 16-channels, so Land Boards decided to create a board with 8 IO expanders making it a 128 channel IO expander that works on Raspberry Pi, BeagleBone Black, Arduino, and basically any boards with an I2C hardware or software implementation. DIGIO-128 board specifications: 8x Microchip MCP23017 16-bit I/O expander for up to 128 GPIOs Communication Interface – I2C host interface with 100/400 KHZ operation; 4-pin host interface connector (Ground, Power, Clock, Data) 8x 20-pin 2.54mm pitch connectors with 16 I/Os, 2x VCC, and 2 ground 2x 4-pin interrupt connectors Data Storage – Microchip 24LC024 2K EEPROM with board info. 3.3V or 5V operation Dimensions – 95 x 95 mm You can find out to use the board in the Wiki for code for Raspberry […]