SMD LED heart with NE555 - SMD kit with heart

€7.99*

Available, delivery time: 1-3 days

Product number: blink232542
Product information "SMD LED heart with NE555 - SMD kit with heart"
With this SMD kit you can easily consolidate your experience in SMD soldering. Many different components ensure varied soldering experiences. 28 SMD LEDs form a heart on the front. On the back is an NE555, the most used chip in the world, and some decade counters.

The result is an LED chaser in the shape of a heart. For the more experienced solderers, the speed of the running light can be adjusted by varying two resistors.

Once you have soldered everything, you have a great pin in your hands. Perfect to wear around your neck!

The kit comes with all the necessary components and PCB:

  • Board
  • 28 SMD LEDs
  • Battery holder SMD CR2032
  • Switch
  • Capacitors, resistors and circuit electronics

The battery is not included. A standard CR2032 battery is required.

Build Time: 2-4 Hours
Difficulty: Medium
Manual and iteractive board: https://binary-kitchen.github.io/SolderingTutorial/
Needed batteries (not inclueded): CR2032 coin cell / LIR2032 rechargeable coin cell
Target group: Children, Grownup, Nerd

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February 2, 2024 21:10

Klein, fein, Dein!

Ein schöner Bausatz zum Verschenken auch wenn nicht grad Valentinstag ist! Durch 0805er SMD-Bauteile noch "per Hand" lötbar. Die Anleitung ist stimmig und gibt gute Tipps, in welcher Reihenfolge man die Bauteile einlöten sollte. Die Polarität der LEDs war kein Problem, überall war ein "." als Kennung für die Kathode war überall gut sichtbar. Bei den 1N4007 Dioden auf der Rückseite war es etwas unklar, was in der Anleitung im Schritt 5 mit "dieser Strich ist auch auf der Platine aufgedruckt" gemeint ist - auf der einen Seite ist der Kasten, wo die Diode hin soll, offen, auf der andere Seite geschlossen da soll also die Kathode hin. Bisschen arg friemelig war dann schon das Verlöten des Trimmer-Potis RV. Da sollte mit dem Lot aufpassen. Und wenn dann beim Einschalten die LEDs stehen bleiben, dann traut Euch einfach am Trimmer zu drehen, denn es kann sein, dass dieser auf "offen" steht (Schleifer ist im Bereich, wo er keinen Kontakt hat) und dann schwinngt der NE555 nicht. Dann einfach Trimmer justieren, bis alle LEDs leuchteten oder die LEDs "rollen". Besonders edel macht sich die komplett schwarze Oberfläche der Front und auch das sehr dünne Platinenmatterial hat nicht den "Elektronikbausatz-Charme" von manch anderen Bausätzen. Ich weiß nicht, ob das am Platinenhersteller liegt oder "inhouse" veredelt wurde: die Kanten des Platinenmaterials waren anscheinend geschliffen und hatten keinerlei scharfe Kanten oder offene Stelle. Dadurch wirkt das gute Stück noch ein bisschen edler und ist damit ein sehr schönes Geschenk!

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