I have posted two articles about temperature loggers. But these loggers had one big lack. They had no decent GUI. So, I sat down and made one. And there is…
It is based on DPA Terminal published before. So it was not as difficult as it might seem.
A week ago, I posted some news about DPA Terminal. I promised, that I will add control capability for all main constructions from this site. A few days ago, I added Relay Board control capability. I had to change source code of Relay Board, but I think, the result is worth to it. Let’s see inside.
Two weeks ago, I published post about DPA .NET class. This class is useful for everyone, who would like to work on own PC application for communication with DPA coordinator. I used this class in my new tool for DPA application testing. This tool has name DPA Terminal. This software is published with full source codes. So, If you want, you can use it and change it against your needs.
If you worked for a real application with IQRF modules with DPA, you’ve probably reached to the conclusion that for communication with PC is very convenient to use UART. Me too. I like UART for his simple handling and easy accessibility, unlike SPI (just PC has no native SPI port 🙂 ). This post describes simple classes for DPA ↔ HDLC conversion written in C#.
A month ago, we tested simple temperature logger with EEPROM storage. Today, we are going to do some improvements. We will use external EEPROM – EEEPROM for data storage (128×16 positions) and EEPROM as settings storage. In addition we will make a sampling period adjustable by DPA command.
Today, we are going to start first part of new serie of articles about wireless data loggers. Today, we will do simple temperature logger for short periods. This temperature logger uses TMP112 device assembled on DCTR module and stores value into MCU EEPROM.
I’ve used the AD converter several times in my articles, but you could be in situation, when you need more ADCs, or you have not enough IO ports. In these situations an external AD converter is suitable choice. I tested MCP3021, cheap and simple ADC worked on I2C bus. More inside… Continue reading