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Paul Gallagher
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Paul Gallagher

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LittleArduinoProjects#220 Arduino gcc toolchain
The Arduino IDE is the most convenient way to get started with Arduino, but it does obscure the underlying mechanics of building software for an Arduino. How to do it from scratch? This is my experiement and guide to building software for an Arduino from th...
The Arduino IDE is the most convenient way to get started with Arduino, but it does obscure the underlying mechanics of building software for an Arduino. How to do it from scratch? This is my experiement and guide to building...
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Paul Gallagher

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LittleArduinoProjects#218 MPU-6050 3-Axes Accelerometer Gyroscope Module
I'm planning to build a controller that needs motion detection, so got hold of an Invensense MPU-6050 3-Axes Accelerometer Gyroscope Module to see if it would do the trick. The module conveniently operates on 3-5V. All I've done so far is a simple sketch to...
I'm planning to build a controller that needs motion detection, so got hold of an Invensense MPU-6050 3-Axes Accelerometer Gyroscope Module to see if it would do the trick. The module conveniently operates on 3-5V. All I've d...
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LittleArduinoProjects#216 OSHChip driving SPI LED module
How easy is SPI with the OSHChip? I thought I'd find out by first controlling a module that has a very basic SPI-ish slave interface. I'm using the LEDx16Module that I designed in the KiCad like a Pro course from Tech Explorations. It has dual 74HC595 shift...
How easy is SPI with the OSHChip? I thought I'd find out by first controlling a module that has a very basic SPI-ish slave interface. I'm using the LEDx16Module that I designed in the KiCad like a Pro course from Tech Explora...
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LittleArduinoProjects#215 OSHChip yotta toolchain
After bruising myself on the raw gcc toolchain - and although I got a program running - I think I want my toolchain to do more of the hard work for me! So next I tried yotta, the software module system used by mbed OS. Building a simple program using the Of...
After bruising myself on the raw gcc toolchain - and although I got a program running - I think I want my toolchain to do more of the hard work for me! So next I tried yotta, the software module system used by mbed OS. Buildi...
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LittleArduinoProjects#213 OSHChip blinky
I heard about the OSHChip on the embedded.fm podcast #146 and immediately wanted one! An ARM Cortex-M0 32 bit micro processor (nRF51822) with 2.4 GHz Radio and other goodies all in a breadboard-compatible DIP16 package .. how could you say no?! So far, so g...
I heard about the OSHChip on the embedded.fm podcast #146 and immediately wanted one! An ARM Cortex-M0 32 bit micro processor (nRF51822) with 2.4 GHz Radio and other goodies all in a breadboard-compatible DIP16 package .. how...
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LittleArduinoProjects#211 Buck Converter Modules
There are many super-cheap buck converter modules available, often based on the LM2596S-ADJ. The "BuckConverterModules" project is where I've recorded notes on the individual units I get to see. So far I've tested four. Two perform really well; two are OK b...
There are many super-cheap buck converter modules available, often based on the LM2596S-ADJ. The "BuckConverterModules" project is where I've recorded notes on the individual units I get to see. So far I've tested four. Two p...
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Paul Gallagher

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LittleArduinoProjects#219 DS18S20 1-Wire Reading
Another way to measure temperatures, this time the DS18S20 - an inexpensive 1-Wire digital thermometer with a range of -55°C to +125°C, at ±0.5°C accuracy from -10°C to +85°C. It comes in TO-92 packaging and may be powered directly (using three pins), or ta...
Another way to measure temperatures, this time the DS18S20 - an inexpensive 1-Wire digital thermometer with a range of -55°C to +125°C, at ±0.5°C accuracy from -10°C to +85°C. It comes in TO-92 packaging and may be powered di...
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LittleArduinoProjects#217 Basic AVR-controlled Buck Converter
Buck converters are switching power supplies configured such that the output voltage is lower than the input voltage. Since the primary components (inductor and capacitor) ideally consume no power, high conversion efficiencies are possible. In practice of c...
Buck converters are switching power supplies configured such that the output voltage is lower than the input voltage. Since the primary components (inductor and capacitor) ideally consume no power, high conversion efficiencie...
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Feature Lifecycle Analysis with PivotalTracker
Can you trust your agile planning process to deliver the best result over time? In an ideal world with a well-balanced and high-performing team, theory says it should all be dandy. But what happens when the real world sticks it's nose in and you need to dea...
Can you trust your agile planning process to deliver the best result over time? In an ideal world with a well-balanced and high-performing team, theory says it should all be dandy. But what happens when the real world sticks ...
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LittleArduinoProjects#214 OSHChip gcc toolchain
Can I build a program for the OSHChip using the gcc toolchain and Nordic Semi SDK on MacOSX? Yes..ish! Here are my notes and scripts for compiling and deploy a simple program, but there remain a few rough edges. There are probably easier ways to do this ......
Can I build a program for the OSHChip using the gcc toolchain and Nordic Semi SDK on MacOSX? Yes..ish! Here are my notes and scripts for compiling and deploy a simple program, but there remain a few rough edges. There are pro...
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LittleArduinoProjects#212 Stay Creative!
A simple project inspired by Make your own LED Sign VU Meter by GreatScott! . The catch-phrase should be familiar if you subscribe to his channel;-) It's a VU meter, but rather than doing the "bar graph" thing à la LM3915, it pulses the intensity of all LED...
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LittleArduinoProjects#210 Pump up the Jam!
This is a super cheap amplifier kit built around the TDA7297 15+15W dual bridge amplifier chip. All the other parts in the kit are essentially the basic supporting components for the TDA7297. Performance is very good, although my impromptu speaker boxes don...
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The Voice UK • Episode 4 Complete • Blind Auditions • April 14, 2012
www.youtube.com

This is the last of the blind auditions. Next week the battle rounds begin. For more about Tom Jones and to participate in a fan community,

GovCampSG [licensed for non-commercial use only] / Active Citizenry One ...
govcampsg.pbworks.com

Active Citizenry One App at a time. Page history last edited by GovCampSG 1 week, 2 days ago. Abstract: Everyone's going to be engaging

GovCampSG [licensed for non-commercial use only] / Wish List for Open Data
govcampsg.pbworks.com

Wish List for Open Data. Page history last edited by GovCampSG 1 day, 15 hours ago. Abstract: Even though the data is available, it is how y

GovCampSG [licensed for non-commercial use only] / Is Open Data enough
govcampsg.pbworks.com

Is Open Data enough. Page history last edited by GovCampSG 1 week ago. Abstract: data.gov.sg has a whole slew of raw data available for cons