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ACEBOTT OEM 3.3V~5V High Level Analog Signal Electronic Component 4 Button Large Button Module for Compatible With ESP32/Arduino
Product Description
Products Description
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The 4-button module contains four presses, and the circuit is on when a button is pressed and disconnected when it is released. Because the four key switches share one analog output, they can only be connected to the analog port. Each key corresponds to an analog value, so as to realize the discrimination of different keys.
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Application reference: remote control, keyboard, game controller, etc.
| Operating voltage | 3.3V~5V |
| Operating temperature | -40°C~+80°C |
| Output signal | Analog signal |
| Size | 4.7cm*2.4cm |
Pin Configuration
| 4-Button Module | ESP32 |
|---|---|
| Sign | Pin 32 |
| VCC | 5V |
| GND | GND |
Note: Expansion board is attached to esp32 controller board.
Frequently Asked Questions (FAQ)
Q: How does the 4-button module read multiple button presses through a single pin?
A: All four buttons share one analog output line. Each button circuit is routed with different resistor values, producing a distinct analog voltage value read by the microcontroller's analog pin.
Q: What is the input voltage range supported by this button module?
A: The module supports an operating voltage of 3.3V to 5V, making it fully compatible with both 3.3V boards (like ESP32) and 5V microcontrollers.
Q: Can this module be connected directly to digital input pins?
A: No, it must be connected to an analog-to-digital converter (ADC) port because the button identification relies on interpreting discrete analog voltage signals.
Q: How do I wire this module to an ESP32 board?
A: Connect the VCC pin to 5V (or 3.3V), the GND pin to GND, and the Sign (signal) pin to Pin 32 (or any supported ADC pin) on your ESP32 controller.
Q: Can multiple buttons be detected at the same time?
A: The module is primarily engineered for single-key inputs. Simultaneous button presses change the parallel resistance network and generate different voltage readings, which require custom calibration to identify.
Q: What applications is this 4-button module best suited for?
A: It is ideal for human-machine interface designs such as custom keyboards, gaming controllers, robotic controls, remote control units, and navigation menus.
