This add-on board, for around £6, can play a variety of music formats and, in addition to an SD card slot, also has a microphone, a headphone jack and a line-in input. This turns the Arduino into a complete MP3 player and is suitable for digitising audio signals. Facts: MP3 chip VS1053, MP3 connection via SPI interface…
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I've had the Zumo for a few years now and just rediscovered it in a box. So I thought it would be nice to write a bit about it. The Zumo is a small mobile platform onto which you can directly plug an Arduino Uno or Leonardo. It has two motors and a few sensors…
Continue reading "Zumo V1.2"A new kit from AliExpress has prompted me to build a remote-controlled vehicle. The kit consists of an Arduino, an expansion board, and a PS2 controller with receiver. Components The chassis of the vehicle is formed by a kit from AliExpress LINK. This kit contains an acrylic platform with two motors, wheels, and some accessories. For control, I am using...
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Based on my nRF contributions, and with the help of the Sunfounder remote control, I thought it would be nice to build a remote-controlled car out of it. This post describes what came of it. Areas of use: Fun for the kids and the dad 😉 Parts list: Car, drivable chassis, Arduino Uno, Motor Driver Board V2, nRF24 module + breakout board, Power supply…
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The WeMos D1 R32 is an ESP32 housed in an Arduino Uno form factor. It looks like an Arduino, but its I/Os only operate at 3V instead of the usual 5V. This can lead to incompatibilities with expansion boards (shields). The price is under 5 Euros on fast shipping sites like AliExpress. The board features all the advantages of the ESP32 processor…
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As creating a menu on the display is a recurring task, I have encapsulated some of the functionalities into classes. Hardware Components: * Arduino Uno * LCD Shield Software: * Arduino IDE * LiquidCrystal Lib (can be installed via the library manager, see also here) * My Menu Lib (see below) Goals: Step-by-step simple header with classes that in...
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I would like to connect a small 128×64-pixel OLED display for a small project. For this, I have developed a small prototype which I would like to present here. I am operating the display on an Arduino Uno via the Wire bus. Components Hardware Software Experimental setup I am using the prototype add-on board (see here). The display is connected via the…
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This is about a China import and not the official Uno WiFi. The board has a full Arduino Uno with an Atmega processor and an ESP8266 chip on board. Via DIP switches, the Uno can be connected to the USB, the ESP to the USB, or the ESP to the UNO. For operation, …
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The BH1750 is a light intensity measuring sensor. I am not using the sensor discretely, but on the GY-302 board. It is controlled via the I2C (Wire) bus. As the GY-302 board is operated at 5V, it is suitable for control via the Arduino Uno. Circuit Diagram The circuit is similar (see sketch) to that of other GY...
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The Bosch BMP85 is a barometric sensor. It can measure air pressure and temperature to calculate the current altitude above sea level. The BMP85 is no longer manufactured and has been replaced by the BMP180. The BMP180 is smaller in form factor but otherwise almost identical to its predecessor. Differences can be found in the linked datasheets…
Continue reading "GY-68 mit Sensor BMP85/BMP180"