Tech Info, Learn Things and Other Fun Stuff
Analog Output 4-20mA Circuits
One of the most common analog signals used in process control applications is the 4-20 mA signal. There are times where a 4-20 mA has to be generat...
RPi 3, Pi-SPi-RS485 and Gas Sensors
The brand new Pi-SPi-RS485 Interface has just arrived and I had to take it for a spin with some of our products. Here is a pic of my test setup:
F...
Designing Multi-Sensor Transmitters
The VP-TX-DCIM is a new multi-sensor platform designed around the PIC18LF series microprocessor and the MCP3208 A/D converter.
The "must have" desi...
RPi 3, Analog 4-20mA, Relay, and Character Display Interfaces
The most commonly used interfaces in commercial and industrial applications require some form of analog input (sensors) and relay outputs for contr...
Serial Converter Tips for the Raspberry Pi
The Pi has a uart that is accessible on the expansion port, which we use for our wireless zigbee shield. Not too long ago I was working on a projec...