Blogs:
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Bluefruit Interface with Accelerometer and Bluefruit-App
We made two interfaces for a theater play using two Circuit Playground Bluefruit from Adafruit and an additional NeoPixel Ring with 24 LEDs (also from Adafruit). All Circuit Playground boards already come with several built-in sensors, LEDs, and a buzzer, which makes…
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Simple Timer with LEDs and speaker
inspired by the Arduino Starter Kit example #8: ‚The Digital Hourglass‘, we made a simple tea timer using two pushbuttons to enter two different desired times: 3 minutes and 5 minutes. After pressing any of the push buttons all 6 LEDs will…
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Boldport Kits – The Tap and the Cordwood Puzzle Too
Boldport sells many interesting soldering kits, inspired by old famous circuits. We got two of them: We are using „The Tap“ (a touch sensor circuit) to turn on three of the eight LEDs from the „Cordwood Puzzle Too„. The Tap – a…
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Counter with 7-Segment-Display and two push buttons
When you press one of the push-buttons you increase the number shown on the 7-segment-display. When you press the other push-button you decrease the number shown on the 7-segment-display. Material: Video: Hardware: The segments for each digit are small LEDs and they…
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App for Arduino+Bluetooth HC-05
We created an App in order to control an Arduino UNO via Bluetooth. The Arduino controls a servomotor and an UV LED. Materials: Arduino UNO Bluetooth modul HC-05 ( for +5V) Small Servomotor SG90 UV LED or any other LED Circuit: Pin…
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Disco Lights Wearable
using a Gemma M0 from Adafruit, a Neopixel Jewel and an ALS (Ambient Light Sensor) we build up this wearable as Disco Lights (simulation). Here is a video: MATERIALS: ° Gemma M0 from Adafruit ° NeoPixel Jewel ° Ambient Light Sensor TEMT6000…
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Greeting Puppy
Here is a prototype for a greeting puppy using an Arduino, an ultrasonic sensor (for the eyes) and a servomotor (for the tail). The puppy will wiggle its tail faster as you come closer 🙂 The hardware connections are as follows: For…
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Schadensvermeidende Regeln
1. Pluspol (+ rote Kabel) und Minuspol (– schwarze Kabel) von der Batterie sollten sich nicht berühren!!! Achte darauf, dass alle Verbindungen richtig sind bevor du die Batterie verbindest!!! 2. LED immer mit Widerstand verwenden, sonst brennt die LED durch (geht kaputt):…
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Magic 8 Ball – Arduino Kit Example
The Arduino Starter Kit comes with many examples for beginners. The associated code is included on the Arduino IDE. To open the code on the Arduino IDE, go to: File→ Examples→ 10.StarterKit_BasicKit → … and choose the example you want to work…
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Holiday cards with LEDs
If you enjoy tinkering with your kids or on your own, here are some ideas to light-up your self-made holiday cards. You will need some LEDs, copper tape and a CR2032 cell battery. I like to use axial LEDs because they are…
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