Constant Current Dummy Load In an HDD Cooler
Basic constant current dummy load using an Op Amp and a by-passing MOSFET is very easy to build and had […]
TI MSP430G2 SPI Examples
In my earlier posts (1, 2, 3), I showed some examples of using the I2C protocol with TI’s MSP430 Launchpad. […]
Arduino Library For LM95172 Temperature Sensor
LM95172 is a 13 to 16 bits wide temperature range automotive-grade temperature sensor in a ceramic SOIC package. Besides its […]
Adding a Barrel Jack And a Switch to Raspberry Pi
I got myself a Raspberry Pi (Model B V2) last month. After having played with it for a while, I […]
Precision Voltage Adapter For Low Voltage Measurement
A typical 3 ½ or 4 ½ multimeter can measure voltage in the low mV range and current in the […]
100K 5% Carbon Film Resistor Value Distribution
It is well understood that resistors are typically binned in such a way that for a given tolerance the actual […]
Keithley 196 Firmware/Calibration Data Backup
I bought a used Keithley 196 bench multimeter a few weeks ago. This is a 6 ½ digit 3,030,000 counts […]
Arduino Dev PCB Using Seeed Fusion PCB Service
I have been mainly using perf-boards for my electronics projects. Since most of the stuff I build are not very […]
Current Adapter for Low Current Measurement Using TS1001
For current measurement in the low micro-amp and nano-amp ranges, a feedback ammeter is usually an excellent choice (see Keithley […]
Interfacing DS3232 RTC With MSP430G2452
I have used DS3232 RTC (real-time clock) in many Arduino based projects before. DS3232 utilizes a temperature compensated oscillator, which […]
Reading SHT21 Using TI MSP430 LaunchPad
SHT21 is a neat little temperature and humidity sensor from Sensirion and I have used it in a couple of […]
Interfacing ADS1224 With Arduino
ADS1224 is a 24-bit delta-sigma analog-to-digital converter with 4-channel differential inputs multiplexer. This ADC chip offers a 20-bit effective resolution […]
“Program Will Not Fit Into Available Memory” Error In CCS
I upgraded my Code Composer Studio (CCS) to 5.2.1 a few days ago. An interesting thing I found out was […]
Bring a Dead WD1001FALS Back to Life
I have a few Western Digital WD1001FALS 1 TB hard drives and they have been pretty reliable for the past […]
Adding a Fan Controller to Topward 6603A
I did a review on Topward’s 6603A linear power supply last time. In my opinion, Topward 6000 series power supplies […]