Wifi FM-receiver with ESP32, OLED display and wireless update (OTA)

Listening to the radio via frequency modulation (FM) has its pitfalls. Not all stations of choice can always be received, and these are also locally limited. Noise-free analog reception is also not always guaranteed and sometimes significantly limits the playback quality. Using an ESP32 microcontroller, a 128×64 OLED display and an encoder, a simple web radio was built that can be programmed wirelessly and is suitable for connection to an audio amplifier.

Fernsteuerung für Fahrzeughebebühne mit Arduino und 3D-Druck (Funksteuerung oder Bluetooth)

Eine Fernbedienung kann das Leben leichter machen. Vor allem dann, wenn man Arbeiten alleine ohne Unterstützung tätigt. In der Hobbywerkstatt kann dies häufiger der Fall sein. Eine Hebebühne wird in der Regel über eine Steuerung an den Hubsäulen bedient – es ist nicht möglich, die Knöpfe zu betätigen und gleichzeitig die Ausrichtung am Fahrzeug zu steuern, zum Beispiel beim Ein- oder Ausbau eines Motors/Getriebes. Im Folgenden wurde eine konventionelle Fahrzeughebebühne mit einer Funkfernsteuerung auf Arduino-Basis nachgerüstet. Die Materialkosten belaufen sich auf ca. 30 €, die Installation ist zuverlässig und alltagstauglich.

Remote control for vehicle lift with Arduino and 3D printing (Radio Control or Bluetooth)

A remote control can make life easier. Especially if you work alone and without any assistance. In the hobby workshop, this may be the case more often. A vehicle lift is usually operated by a control on the lifting columns – it is not possible to operate the buttons and control the alignment on the vehicle at the same time, for example, when installing or removing the engine. In the following, a conventional vehicle lift was retrofitted with a radio remote control based on Arduino. The material costs amount to approx. $30, the installation is reliable and suitable for everyday use.

Video projector serial multimedia control unit using arduino (RS232)

ed multimedia panel fitting into a 50 mm cable channel eliminates the need for the proprietary infrared remote control. The cost of the equipment was reduced by 80% compared to a commercial solution and is highly customizable. The secondary objective of the installation was to provide the user with a simple, unambiguous control panel that is completely reliable. The project presented covers the entire work-through process from analysis and planning to installation and the finished result.