---
id: buttons
title: Heltec Sensor Hardware Buttons
sidebar_label: Buttons
sidebar_position: 1
---

## Capsule Sensor V3

  - **Long press 3 seconds:** Power on or shutdown.
  - **Long press 8/16 seconds:** Long press for 8~16 seconds in the shutdown state until the blue indicator lights up. At this time, the device enters the WirelessBoot mode, which can be used to upload firmware.