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#.
This post describes simple RFID reader with wireless transmission to the PC. There is used Wiegand26 protocol for communication between TR-52DA and IQRF reader. This construction would be useful for installations on places, where you are not allowed to use additional cabling.
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.
Two months ago, I published post about Small Relay Box II. There was full design of small DCTR-driven Relay box. A week ago, I assembled the first piece of PCB and I discovered two bugs (one HW – wrong NC a NO contact description on silkscreen layer and one SW – wrong relay pin mapping).
If you are not daily user of IQRF modules, probably you often find that you have to look into reference manual for correct function names and parameters. If you want to simplify work with IQRF OS functions, this article is just for you. This post describes how to install IQRF syntax highlight and auto-completion into Notepad ++ (from 6.6.6 version).
I was annoyed every time I was looking for pinout of CK-EVALs and DK-EVALS in datasheets. Now, they’re available labels for both on product pages. Just print it and use it.
ESA Education Office announced finalists for the 2015 European CanSat Competition, which will take place in Portugal from 25 to 28 June 2015. Czech team GirlsSAT 2015 from the Secondary Technical School of Electrotechnical Engineering in Prague will launch their satellite with IQRF wireless technology.
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.