Two years ago I published post about Remote controller with PCA9535. This device was not without some disadvantages, of course. Some of them: not accurate board outline, IQRF module orientation, through-hole push buttons. Now I have finished new version with some improvements, which replaces disadvantages mentioned above.
Category Archives: Constructions
Simple wireless traffic lights
One of site members, Martin Strouhal, wrote: Today I prepared for you example, how to use DDC with relays connected to DK-EVAL. One of my friends asked me for a sample how relays are working. I choose for this demonstration connect to relay LED diode and simulating e.g. street light. However, my fantasy was working farther and I’ve got an idea when I was looking for LED diode and by the way found RGB LED too. It was good change how to show simulated traffic lights for walkers and demonstrate controlling of color states by switching of different branches instead of simple switching on/off.
Simple PWM generator with TR only
Wireless Dallas iButton reader
This article describes simple wireless Dallas one-wire device ROM reader. It is intended as a base code for some more sophisticated access control system. We try some kind of access system in followings articles. Now, we are going to read 1-wire ROM code.
IQMESH USB Gateway
This post describes simple IQRF-USB interface. This device is based on FT230X device, which is USB to UART converter. So you can use gateway for example as coordinator of IQMESH network. Additional you can assemble STM32F100C4T6B MCU and write your own control application.
DPA Terminal – Relay Board control
RFID – Wiegand2 – IQRF
RGB LED strip wireless controller
A few months ago, I wrote some posts about PCA9634 LED driver. Today, we are to going to do a practical application of published module. We are going to make RGB LED strip wireless controller. More inside…
Small Relay Box II – update
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).
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Small Relay Box II
Two weeks ago, I published post about Small Relay Box. I made new and more useful version with NC and NO contacts…