Category Archives: Breadboard circuits

Temperature measurement with one or more DS18B20 and an Arduino

The DS18B20 is a simple and inexpensive temperature sensor. The sensor operates by an OneWire system, which needs, besides the connections for ground and the supply voltage, only one wire to read the temperature values​​. By this bus system, it is possible to run multiple sensors which is also described in this tutorial.

Temperature measurement with one or more DS18B20 and an Arduino - blog.simtronyx.de

Temperature measurement with one or more DS18B20 and an Arduino

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Arduino RGB LED strip control with MOSFETs and optocouplers – Part 1 – The Hardware

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.

Arduino RGB LED strip control with MOSFETs and optocouplers-blog.simtronyx.de

Arduino RGB LED strip control with MOSFETs and optocouplers

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An image slideshow with an Arduino and a tft display with a sd card module

In this tutorial we use our Arduino to show an image slideshow on a 1.8 inch tft module with SD card support (HY-1.8 SPI). We will change the size and the format of the images and copy them to the SD card. After that the Arduino loads them from the card and shows them on the display.

Image slideshow with an Arduino on a 1.8 inch tft display (HY-1.8 SPI)

Image slideshow with an Arduino on a 1.8 inch tft display (HY-1.8 SPI)

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PIC32-Pinguino-Micro – Getting Started: Blinking LED

The PIC32-Pinguino-Micro – as an alternative to the Arduino on Atmel Mega328 basis – has with the Pinguino-IDE not such a big fan base, but it is worth to look more closely. For example, it has a micro-SD slot, a processor with a 32bit architecture, much more Flash- and data-memory.

PIC32-Pinguino-Micro - Getting Started: Flashing the user LED - blog.simtronyx.de

PIC32-Pinguino-Micro – Getting Started: Blinking LED

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Measurement of illuminance with a BH1750FVI Breakout Board (GY-30) and an Arduino Uno

In this simple circuit, we use a small BH1750FVI sensor on a breakout board and an Arduino to measure the illuminance in lux. Besides the application to measure the illumination of objects in the photography, you can – with an extension of this circuit – also easily make an adapted illumination of rooms or gardens. It is also possible to realize an automatic brightness control for displays.

Measurement of illuminance with a BH1750FVI Breakout Board (GY-30) and an Arduino - blog.simtronyx.de.jpg

Measurement of illuminance with a BH1750FVI Breakout Board (GY-30) and an Arduino

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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.

Tiny RTC DS1307 module with an additional temperature sensor DS18B20 and an Arduino Uno - blog.simtronyx.de

Tiny RTC DS1307 module with an additional temperature sensor DS18B20 and an Arduino Uno

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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.

FM stereo radio TEA5767 module and an Arduino - blog.simtronyx.de

FM stereo radio TEA5767 module and an Arduino

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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) boardWhich can, battery powered, “remember and count” the time and the date.

Tiny RTC (DS1307) Real Time Clock module and an Arduino Uno - blog.simtronyx.de

Tiny RTC (DS1307) Real Time Clock module and an Arduino Uno

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