Today we tinker us a driver for RGB LED strips using an Arduino. In addition, we use optocouplers to separtae our Arduino from the control unit with the 3 MOSFETs, which is not absolutely essential, but brings some advantages to the circuit.
Category Archives: Various
A TLC5940, 5 RGB-LEDs and an Arduino
The TLC5940 is a LED driver IC, which we use today to drive 5 RGB LEDs with common anode. The advantage of this circuit is that it provides a constant adjustable output current for the LEDs and only requires minimal wiring.
Tiny RTC DS1307 Real-Time-Clock with an additional temperature sensor DS18B20
In the following article we extend the Tiny RTC module with a DS18B20 temperature sensor, which either already exists on the board or we simply add by soldering. This article is an extension of: Time and calendar functions with a real time clock module based on the DS1307 and an Arduino.
Simple FM stereo radio with a TEA5767 breakout module and an Arduino
To be a little entertained when tinkering, we build us today a small FM stereo radio using a slightly older, but extremely inexpensive, TEA5767 breakout board. However, by this time it will be a little more complicated because we need to solder and have to build some adapters.
Time and calendar functions with a real time clock module based on the DS1307 and an Arduino
Since Arduinos have not directly the possibility to save time, we expand our Arduino with a small DS1307 Real-Time-Clock (RTC) board. Which can, battery powered, “remember and count” the time and the date.