All of you certainly had to configure an RTC chip with the current date and time… today’s project can help to perform that task!
Today I’m going to show you how to make an Arduino door lock that can be opened with an OTP code generated by your smartphone.
My Nixie clock won’t have any visible buttons, so I chose to use a touch sensor, that signals to Arduino when the user touches the clock.
When I published my Type4me project, someone wrote me pointing out that the steps to send your sequence of characters to the device were a little complicated: open a terminal emulator (PuTTY…) connect to the correct serial port send the sequence check if the device answers correctly (OK!) For this reason, I’ve just finished the first…
Today’s project was designed to solve the need to enter, using a keyboard, the same sequence of characters (a password, a greeting…) many times.
LEDs with high brightness (high power LEDs) offer a lumens / watt ratio very higher than traditional incandescent or fuorescent lamps: This type of LED has to be driven by a constant current source: 3W LEDs have a nominal current value of 350mA. I designed a module to drive a single 3W LED and to change…
The BTSwitch project was developed to switch electric devices (lamps…) using an Android smartphone. In the following video, you can watch the device working, while in the next pages you can find some technical details… enjoy your reading!
In this third blog post, I’m going to show you the logical view of my Nixie clock and two of its main elements: the real time clock, to keep track of the current time, and the expander, to add more I/O lines.
In this second post about my Nixie clock, I’m going to show you how to drive those tubes with a microcontroller.