Miscellaneous
I have been mainly using perf-boards for my electronics projects. Since most of the stuff I build are not very complicated and are one-offs, using perf-boards has been more than adequate. With that said, I did find wiring the headers…
Based on some user feedback, I have updated the Hex/Bin/Dec converter and calculator I created a couple of years ago. Added features include shortcut to clear all fields and additional calculations besides bits manipulations.
So far, I have shown examples of using the open source MCP2210 library with MCP2210 GPIO, MCP23S08 and TC77 temperature sensor. In this post, I will show an example of interfacing the chip with an SPI EEPROM using the library.
I made a few minor tweaks to the open source MCP2210 library during the past few days, and had also updated the documentation. In my previous post, I illustrated how to manipulate the GPIO pins using this library and today…
Over the past couple of weeks, I had been busy playing with Microchip‘s MCP2210 USB to SPI converter. I was planning to create a Linux based API since Microchip only provided the Windows version. What I quickly found out though…
I bought an ODB II code reader to diagnose a check engine light problem of my car. The reader I got was an Autel MaxiScan MS300. This particular model is very popular as it is rather inexpensive, coming in at…
I finally got some time to play with the STM32F4-Discovery board I received last year. As for any microcontrollers, learning how to manipulate GPIO pins is always a good place to get started.
A few of weeks ago, I wrote about a couple of cheap webcams I bought from Amazon. Since the focal lengths of those two seemingly identical webcams are different, I could not use them in stereo vision experiments as I…
I got an STM32F4-Discovery board a while ago, but have not had much time to play with it. So the other day I decided to check out the GPIO functions to get myself familiarized with the board.
Microchip‘s MCP4821/MCP4822 is a low budget 12-bit digital-to-analog converter. MCP4821 is the single channel version whereas MCP4822 has two channels that can be latched simultaneously. Both chips have internal band gap references and can be controlled via SPI.
I recently bought two cheap webcams on Amazon and was planning to do some experiments with a dual webcam configuration. These cameras got pretty decent reviews and cost only a few dollars a piece, so I thought what could go…
I was experimenting with I2C using my TI MSP-EXP430G2 Launchpad and ran into some issues. For a while, I could not get the I2C host and slave to talk. After having verified the coding and the hardware setup, my suspicion…
For a lot of electronics enthusiasts and DIYers, hand-soldering SMT components can be a great challenge. And given the trend of component miniaturization, a lot of ICs no longer come with DIP packaging. Soldering such small components by hand without…
I was interviewed by EEWeb a few weeks ago, and the interview is featured in today’s Featured Engineer column. In that interview, I touched upon many topics, from my background to the projects I that I have been working on.
MSP430 LaunchPad (MSP-EXP430G2) is compatible with many of the TI‘s Value Line series of microcontrollers. For these MCUs, both the Master clock (MCLK) and the sub-main clock (SMCLK) can be driven directly by the internal DCO, without having to use…