DS3232 Clock Frequency Calibration
DS3232 is an extremely accurate RTC with a guaranteed accuracy of 2.5 ppm (0 °C to 40 °C), which translates […]
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 […]
I2C Data Logger Using ATmega328p and DS3232 – II
In my last blog post, I showed you the schematic of a I2C data logger I built. Here I will […]
I2C Data Logger Using ATmega328p and DS3232 – I
There is a popular data logger shield out there designed for Arduino using a DS1307 real time clock chip. And […]
Keithley 706 RTC Upgrade – How to Make Any Clock More Accurate
The builtin real-time clock (RTC) in my Keithley 706 works rather nicely as a clock in my lab when the […]
VFD Clock – Putting Everything Together
After I completed the filament driver and the circuit to drive the multiplexed VFD segments, it is time to finish […]
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. […]
MSP-EXP430G2 I2C Master Examples
Last week, I mentioned that in order for the I2C bus to function correctly when using the MSP430 Launchpad you […]
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 […]
Temperature/Humidity Data Logger — Trial Run
I built a rather generic I2C data logger a few weeks back. As I mentioned in my earlier posts, it […]