Makefile for Arduino 1.0
A while back, I created an Arduino plugin for NetBeans so that I could use the full-fledged NetBeans IDE for […]
X-TRONIC 4040 Hot Air Rework/Soldering Station – II
Last time I did a pretty thorough review of the X-TRONIC 4040 hot air rework/soldering station and shared my own […]
X-TRONIC 4040 Hot Air Rework/Soldering Station – I
I have used quite a few professional SMD rework stations before, but those professional grade ones tend to be quite […]
Temperature/Humidity Data Logger — One Year Worth of Data
I had almost forgotten about the experiment I started late last year using the data logger I built to log […]
Building a Wireless Temperature Sensor
I have built quite a few (1,2,3) temperature measurement circuits in the past, but none of those has remote sensing […]
Simple Alexa Ranking Script
Alexa is a great tool for gathering your website’s statistics. Using its traffic rank moving average, you can see how […]
Power is Back
The power finally came back early this morning. So from last Saturday till today, we have been without power for […]
Back Online Again — Finally!
The Halloween nor’easter knocked out power and internet service last Saturday. Even though I have a backup generator, the internet […]
STM32F4-Discovery Board
I received my STM32F4-Discovery evaluation board last week. So I setup the required development environments and did a quick test.
Thermistor Parameter Measurement — II
Last time I showed a simple circuit that can be used to measure unknown thermistor parameters. The circuit is basically […]
Thermistor Parameter Measurement — I
Over the years, I have gathered quite a few NTC and PTC thermistors. But most of them are unmarked so […]
Synchronous Camera Flash Trigger Using IGBT
Typically a synchronous camera flash (e.g. slave flash) is triggered via an SCR. In this blog post, I will show […]
Hand Soldering Fine Pitch LGA Chip
Many of the modern chips such as MEMS accelerometers and gyroscopes only come in surface mount versions and many of […]
A Unipolar Stepper Motor Driver
The drive circuits for Unipolar stepper motors are usually very simple. In its simplest form, a transistor or MOSFET is […]
My Take On BK 2709B Multimeter
I recently bought a new digital multimeter (BK 2709B) and after a couple of months’ use, I am quite satisfied […]