bluetooth

Introduction to CC2541

October 3, 2016
3 comments

Exploring the versatile AVR microcontrollers or the powerful STM32 counterparts were amazing experiences which resulted in interesting projects, many of them presented on this blog. For a hardware designer, the multitude of options can be overwhelming and this is a good thing. In regards to BLE (Bluetooth Low Energy) applications, TI’s CC254X solutions are appealing to say the least. “The CC2541 is a power-optimized true system-on-chip (SoC) solution for both…

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Digital bench power supply

April 8, 2015
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As a follow up to one of my earlier projects, the Variable regulated power supply, initially designed to deliver 0..30Volts at up to 10Amps, I have decided it was time for an upgrade. I kept the enclosure and the nice 250W toroidal transformer, and am reshaping everything as a new digital power supply with regulated voltage and current, short circuit protection, lcd display, buzzer for various alarms, temperature sensor on…

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Projection keyboard

May 26, 2012
1 comment

The laser keyboards use laser and infra-red technology to create the virtual keyboard and to project the hologram of a keyboard on a flat surface.

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Android Bluetooth controlled robot – Part 1

November 1, 2010
179 comments

Learn to connect a bluetooth module to an ATMega micro controller via the UART serial interface and even further, discover it using a bluetooth enabled Android phone. The 9600bps serial link established, can than be used to exchange data: read sensors or control the robot.

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ITON Bluetooth Keyboard and Mouse

November 7, 2008
3 comments

A review on two bluetooth HID (Human input device) devices, manufactured by ITON.
The PA-BK02 bluetooth keyboard and the PA-BTM02 bluetooth mouse are some nice wireless alternatives to your current input hardware.

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Controlling the Radio Devices

September 2, 2008
1 comment

Introduction The number of mobile devices manufacturers is quite big at the moment, so for the developers there are many platforms out on the market and their software must function properly on each of them. Most of the programming aspects are covered by the available APIs. General things like drawing a fancy interface or having a minimum of functionality will work without any issues on all the Windows Mobile platforms….

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