A4 button with WiFi connection and magnet charger

Name: A4 button with WiFi connection and magnet charger
SKU: 34886
Price: 12.90 USD
Availability: InStock

A4 button is a WiFi connected push button. The push button "boots up" and send message to MQTT broker.

Designed by AprilBrother in China

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A4 button is a WiFi connected push button. The push button "boots up" and send message to MQTT broker.

What is it? A4 button is a WiFi connected push button. The push button "boots up" and send message to MQTT broker. It will go to sleep after work be done. It's power saving for longer battery life. W…

What is it?

A4 button is a WiFi connected push button. The push button "boots up" and send message to MQTT broker. It will go to sleep after work be done. It's power saving for longer battery life.

Why did you make it?

It is based on the single core ESP32-C3 RISC-V processor and therefore comes with tons of useful features. The board includes a WS2812B RGB LED and buttons to aid in your development.

About the default firmware

The default firmware works as AP default. You can connect the AP and upload your own firmware which contains the your WiFi SSID / password and your MQTT broker address.

You will get the full features after firmware is uploded. How it works:

- Press button to wakeup. The LED turns on

- Connect the WiFi and publish message to MQTT broker

- Turn off the LED and go to sleep

Note: The firmware is written in esphome. ESPHome is a system to control your microcontrollers by simple yet powerful configuration files and control them remotely through Home Automation systems. It's easier to integrate to home assistant.