Mikroelektronika d.o.o.
Analoge Key Click-Platine
Analoge Key Click-Platine
SKU: MIKROE-3409
Verfügbarkeit für Abholungen konnte nicht geladen werden
Overview
The Analog Key Click Board™ is an analogue keyboard on a Click Board™. It contains six tactile pushbuttons, used to select one of six different voltage levels. The idea behind this Click Board™ is very simple: six resistors form a voltage divider. The resistors are connected in series between the VCC and the GND. Each button selects one of the six middle taps, allowing six different voltage levels to be selected. The voltage is available at the AN pin of the mikroBUS, which is additionally protected by an operational amplifier, configured as a buffer. This allows both protection and a proper impedance at the analogue input pin of the microcontroller.
Das Analog Key Click Board™ ist eine analoge Tastatur auf einem Click Board™. Es enthält sechs taktile Drucktasten, mit denen einer von sechs verschiedenen Spannungspegeln ausgewählt werden kann. Die Idee hinter diesem Click Board™ ist sehr einfach: Sechs Widerstände bilden einen Spannungsteiler. Die Widerstände sind in Reihe zwischen VCC und GND geschaltet. Jede Taste wählt einen der sechs mittleren Abgriffe aus, sodass sechs verschiedene Spannungspegel ausgewählt werden können. Die Spannung ist am AN-Pin des MikroBUS verfügbar, der zusätzlich durch einen als Puffer konfigurierten Operationsverstärker geschützt ist. Dies ermöglicht sowohl Schutz als auch eine angemessene Impedanz am analogen Eingangspin des Mikrocontrollers.
| Overview | |
|---|---|
| Category | Pushbutton/Switches |
| Applications | It is an ideal solution for different applications controlled by discrete voltage levels, but also for applications which have restricted number of free pins including password terminals for small alarm systems, for selecting an option in various embedded applications, and for all kinds of small DIY projects where low pin count is a big concern. |
| Key components | |
| On-board modules | KMR221, a tactile push-button by CKSwitches; OPA344, a low-power operational amplifier from Texas Instruments. |
| Features | |
| Key features | Analog keyboard requires a single MCU pin, high quality buffer op-amp, rubberized tactile pushbuttons with very high endurance and low ON resistance, and more. |
| Interfaces | |
| Interface | Analog |
| Compatibility | mikroBUS™ |
| Electrical | |
| Input voltage | 3.3V,5V |
| Physical | |
| Click board size | L (57.15 x 25.4 mm) |
| Compliance | |
| Country of origin | Serbia |
| RoHS | Compliant |
| Ordering information | |
| Part number (SKU) | MIKROE-3409 |
| Manufacturer | Mikroelektronika doo |
| EAN | 8606018714742 |
| Warranty | 12 Monate |
| Shipping weight | 0.023 kg |
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Analoge Key Click-Platine
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