What 4-20mA actually means (and why your zero is at 4)
Most industrial sensor data still travels as a current between 4 and 20 milliamps. What the signal is, how it becomes a number in your database, and the ways it can quietly be wrong.
Posts
Can you trust your sensor data? A developer's guide to the full stack
Your sensor data has been transformed, compressed, timestamped, and approximated before it reaches your application. Here’s the full journey, and where to be suspicious.
Your uptime SLA means nothing when the physical process can't wait for your rollback
Web developers think about uptime differently than industrial engineers. Here’s why, and what it costs when you don’t understand the difference.
Why this blog exists
An introduction to who I am, what I’m doing, and what I plan to write about.