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Posts Tagged ‘wireless’

Touchpad as wireless (MIDI) expression controller

Friday, May 27th, 2016

Acidbourbon has published a new build, a wireless touchpad that can be used like an expression pedal: This sort of touchpad speaks some special Apple mouse protocol. Luckily I found a code snippet on mikrocontroller.net which helped a great deal to get the thing going. Then I used a standard...

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Posted in AVR | No Comments »

Fobble, a general purpose wireless breakout board

Thursday, January 14th, 2016

Ken Boak  has been working on a general purpose wireless breakout board - Fobble: As can be seen from the above picture it contains a number of key features: A resident RFduino  Bluetooth Low Energy Module with ARM Cortex M0 processor 2 layer pcb 50 x 50 mm format- with extended Arduino...

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Posted in ARM | No Comments »

Using #Twatch as ICelsius wireless bbq thermometer monitor

Monday, January 11th, 2016

Daniel use the #twatch as a monitor for his ICelsius wireless thermometer: Finally I found a purpose for my twatch. I use it as a monitor for my iclesius wireless thermometer. So I wrote a quick and dirty python script which works as a relay between the icelsius and the twatch....

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Posted in #twatch | No Comments »

DIY compost sensor

Friday, June 26th, 2015

Kinasmith wrote this instructable detailing how to build a compost temperature monitoring system, a web connected wireless sensor network: Why Measure the Temperature of Compost? "Composting is the biological decomposition of organic matter under aerobic conditions." Micro-organisms consume organic material and oxygen and create heat as a waste product. By measuring...

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Posted in measurement, sensors | 1 Comment »

KeySweeper – covert Microsoft wireless keyboard sniffer using Arduino and nRF24L01+

Monday, March 23rd, 2015

Samy Kamkar has written an article detailing the build of his KeySweeper project: KeySweeper is a stealthy Arduino-based device, camouflaged as a functioning USB wall charger, that wirelessly and passively sniffs, decrypts, logs and reports back (over GSM) all keystrokes from any Microsoft wireless keyboard in the vicinity. All keystrokes are logged...

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Posted in Arduino, hacks | 3 Comments »

LittleBits Hue lighting controller

Monday, December 22nd, 2014

Jeremy Blum has written an article about his latest project the LittleBits Hue lighting controller: The LittleBits Hue Controller is an easy-to-setup, wall-mountable, physical controller for your Philips Hue lightbulbs. The controller makes it easy to turn the lights on/off, change their brightness, and cycle through preset colors. This is a...

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Posted in Arduino, R-Pi | No Comments »

Digispark Pro – tiny, Arduino ready, USB and mobile dev board

Thursday, April 24th, 2014

Ihsan informs us of Digitstump’s  inexpensive, tiny Arduino IDE ready, USB and mobile dev board, the Digispark Pro: Serial over USB debugging, USB programmable, 14 i/o, SPI, I2C, UART, USB Device Emulation, Mobile Development Ready, Optional BT, BLE, Mesh, and Wi-Fi. The super small, dirt cheap, always open source, Arduino compatible, USB...

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Posted in Arduino, dev boards | 1 Comment »

Reverse engineer wireless temperature / humidity / rain sensors, part 1

Monday, April 21st, 2014

Ray Wang writes: I just wrote a series of three posts about how I reverse engineered a few off-the-shelf wireless temperature, humidity sensors and rain gauge, and used an Arduino to listen to and decode the sensor data. The tools involved are quite simple: an Arduino and a 433MHz RF...

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Posted in Arduino, wireless | 1 Comment »

App note: Direct-sampling DACs in theory and application

Saturday, March 15th, 2014

An application note from Maxim:  Direct-sampling DACs in theory and application  High-speed digital-to-analog converters (DACs) with high resolution in the 12- to 14-bit range enable new types of transmitter designs that employ a direct modulation scheme. In such designs, the modulated transmission signal is generated directly on the base frequency....

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Posted in app notes | No Comments »

Magic Mote wireless sensor v2

Wednesday, February 26th, 2014

Tom posted an update on his Magic Mote wireless sensor we covered previously: Here is Version 2 of the Magic Mote PCB. The tactile switch is more accessible at the side of the board, the programming/serial header is now IDC6 compatible, and there is improved isolation of the ground plane under the...

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Posted in sensors, wireless | No Comments »

Wireless sensor node with MSP430G2553 and 8-pin adapter for NRF24L01+

Thursday, January 2nd, 2014

Tom has designed this Magic Mote wireless sensor, that is available at Github: I set out to design a wireless sensor PCB that could be inexpensively prototyped in quantities of 10. NRF24L01+ modules are exceedingly cheap (~$10 for 10), use very little power, and have sufficient range for most indoor projects. Low power...

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Posted in sensors, wireless | 1 Comment »

KORUZA, the open-source open-hardware wireless communication system

Friday, November 8th, 2013

KORUZA, the open-source open-hardware wireless communication system by Luka Mustafa – Musti KORUZA is an innovative open-source open-hardware wireless communication system, employing a new low-cost approach to designing free-space optical network systems, enabling building-to-building connectivity with a highly collimated light beam at a capacity of 1 Gbps (1000 Mbps) at distances...

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Posted in open source, wireless | 7 Comments »

‘GPS to Xbee bridge’ project

Friday, October 11th, 2013

ezflyr posted another cool project in the project log forum, the GPS to Xbee Bridge: Here is my latest project, a 'GPS to Xbee Bridge'. This project utilizes a USGlobalsat BR-355 GPS receiver, and an Xbee module to wirelessly transmit a GPS-derived time/date info packet to a variety of home-brew clocks...

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Posted in project logs | No Comments »

Wireless power and charging test and some reverse engineering

Thursday, July 11th, 2013

Dimitar Kolev writes: I test both, just with one LED for now (like 15mA) - they was working quite OK for distances up to 1-2cm, just some paper and thin air between TX and RX coils. With appropriate ferite it seems distance and coupling can be even better. Just to...

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Posted in wireless | No Comments »

Get in touch with your things – Souliss

Thursday, May 16th, 2013

Get in touch with your things – Souliss: The future of lights goes through LEDs because compared to standard lights they’re tiny, easy to control and consume low power. But what we were missing until now was a powerful yet straightforward hardware controller for everyone willing to use LEDs and...

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Posted in LEDs | No Comments »

RFM12Pi V2 – Raspberry Pi wireless expansion board

Thursday, May 2nd, 2013

Glyn Hudson over at OpenEnergyMonitor posted an update on the RFM12Pi Raspberry Pi wireless expansion board: Here is the latest version of the RFM12Pi Raspberry Pi wireless expansion board. Like the V1 the RFM12Pi V2 allows the Raspberry Pi to receive and transmit data via RFM12B 433/868mhz from and to other wireless...

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Posted in R-Pi | No Comments »

DIY wireless data transceiver

Thursday, April 25th, 2013

Build your own wireless transceiver: Have you ever wanted to send data from a sensor or project wirelessly? This simple circuit allows you to build your own wireless transceiver using two ICs, a transistor, and two resistors. The IC is from Melexis and uses On-Off Keying modulation and can be...

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Posted in DIY, wireless | 3 Comments »

Improve wireless doorbell

Friday, March 8th, 2013

Trandi posted a step by step guide of his DIY wireless doorbell build: So this was the perfect pretext for a small electronics project, centred around the idea of a simple voltmeter that would notify us when the voltage goes below a safe level. This would most easily be done...

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Posted in DIY, how-to | No Comments »

Tweeting cat door

Friday, January 4th, 2013

Let your cats be part of the social media explosion! The tweeting cat door project tweets a message every time a cat passes through the door. The project is based around the Electric Imp which is a Cortex M3 processor and a WiFi transmitter packed into an SD card. A...

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Posted in DIY, wireless | 5 Comments »

Guitar Hero wireless foot pedal talking to the Arduino

Tuesday, October 2nd, 2012

Tom wanted to operate the panning of his webcam via foot pedal. The solution he came up with was to use the old Guitar Hero wireless pedals. He reverse engendered the PlayStation protocol to allow his Arduino to communicate with the pedals. What he ended up with were 2 wireless...

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Posted in Arduino | No Comments »

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