Translate(BETA)
Recent Comments
Category Archives: c-electronics
VeeCad / Stripboard Revisited
I’m ready to make a permanent version of my DTMF detector. I’m only going to build 2, maybe 3, of these so it’s not worth it to me to design and manufacture a PCB for the project. Instead, I decided … Continue reading
DTMF Detector / Decoder Circuit
Note1: The FCC frowns upon you connecting devices to the telephone system (the old copper line network a.k.a. POTS). In my testing, this device is connected to a small PBX. When I’m done it will be connected to a VoIP … Continue reading
PMS5000 Air Quality Monitor Part 4 – Installing the Hardware (AKA WordPress BLOCK Mode F****** me)
I wrote a complete explanation of how I installed the PMS5000 and WordPress decided to discard it for me even though I was saving drafts every couple of paragraphs. A few months ago WordPress decided to drop support for their … Continue reading
PMS5003 Air Quality Monitor Part 3 – Data Presentation
After getting a week or so worth of data it was time to decide how I wanted to view it. I knew I wanted to see the output on a web page. The software for this project is going to … Continue reading
PMS5003 Air Quality Monitor Part 2 – Raspberry Pi and SQLite
After watching my little program monitor the PMS5003 air monitor properly for a few days, it was time to move on to the next steps: migrating the program to a Raspberry Pie and writing data to an SQLite database. Moving … Continue reading
Reading PMS5003 Air Quality Sensors with Windows and Free Pascal
Some time in the past several months, the PMS5003 Air quality sensor came to my attention. This sensor allows you to monitor PM1.0, PM2.5, and PM10 particles in the air. Some times the air quality around these parts gets quite … Continue reading
Installing Adafruit FT232H Breakout of the FT232H USB to Serial Converter
I recently purchased an air quality monitor I want to play with. It uses a TTL serial interface. While I could connect it directly to a Raspberry Pi (and eventually plan to do so), to start I want to have … Continue reading
Repairing a female Molex .156 Found on Pinball Games
I recently purchased the pinball game Funhouse, my all time favorite. The machine was refurbished and looks brand new inside and out. Shortly after receiving it I noticed that coin door functions were working erratically. Most importantly, the buttons used … Continue reading
The Ultimate Electronics Toolbox
In the early 80’s I stumbled across a Plano 757 tackle box and purchased it to store my small assortment of electronic tools and parts. It quickly ended up at my office where I was constantly having to make cable … Continue reading
Big Dan the Blogging Man 