meshtastic/docs/hardware/devices/heltec-automation/vision-master/buttons.mdx

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---
id: buttons
title: Vision Master Hardware Buttons
sidebar_label: Buttons
sidebar_position: 1
---
## Functionality
### Vision Master E213/E290
- **RST Button(side):**
- **Single press:** Resets the device.
- **GPIO21 Button(side):**
- **Long press:** Will signal the device to shutdown after 5 seconds.
- **Single press:** Changes the information page displayed on the device's screen.
- **Double press:** Sends an adhoc ping of the device's position to the network.
- **Triple press:** Enables/Disables the GPS Module on demand. If an NPN Transistor is added it will cut power to the GPS board. The NPN pin must be configured on the PIN_GPS_EN inside the Position module in the App for this switching to work.
### Vision Master T190
- **RST Button(side):**
- **Single press:** Resets the device.
- **BOOT Button(top):**
- **Long press:** Will signal the device to shutdown after 5 seconds.
- **Single press:** Changes the information page displayed on the device's screen.
- **Double press:** Sends an adhoc ping of the device's position to the network.
- **Triple press:** Enables/Disables the GPS Module on demand. If an NPN Transistor is added it will cut power to the GPS board. The NPN pin must be configured on the PIN_GPS_EN inside the Position module in the App for this switching to work.