mirror of
https://github.com/meshtastic/meshtastic.git
synced 2024-12-28 23:19:47 -08:00
fcc74c59ce
* hide the mess! (#3) * initial changes to folder structure * redirect tests * fix links * fix links and redirects * fix link and remove redirects for now * fixing more broken links * updates * more broken links * trunk fmt * really forked something up * another broken link * really forked something up * fixing links again * LINKS FINALLY FIXED, added missing seeed devices * stupid vs code * I really hate vs code * honestly, I despise vs code * I want to kick vs code * All this extra work for what * spacing * I really want to curse vs code * spacing * spacing * Renamed folder * had to go nuclear to fix * trunk fmt * add heltec vision master series * fixing links * test redirect * need to rename heltec folder to allow for redirects * needed to change raspberry-pi to raspberrypi * oops fix links * add chatter to index * redirects -- I think this is comprehensive * pesky comma * no * remove images * smaller images * indents and white spaces * remove weird {" "} * remove large photo * add smaller image, use image that wasn't being used
96 lines
4.5 KiB
Plaintext
96 lines
4.5 KiB
Plaintext
---
|
|
id: peripherals
|
|
title: Heltec® LoRa 32 Peripherals
|
|
sidebar_label: Peripherals
|
|
sidebar_position: 3
|
|
---
|
|
|
|
import Tabs from "@theme/Tabs";
|
|
import TabItem from "@theme/TabItem";
|
|
|
|
<Tabs
|
|
groupId="heltecESP32V3"
|
|
queryString="heltecESP32V3"
|
|
defaultValue="GPS"
|
|
values={[
|
|
{label: 'GPS Module', value: 'GPS'},
|
|
{label: 'Keyboard', value: 'Keyboard'},
|
|
{label: 'Buzzer', value: 'Buzzer'},
|
|
]}>
|
|
<TabItem value="GPS">
|
|
|
|
## GPS Module
|
|
|
|
### Introduction
|
|
|
|
This informational guide outlines the process of enhancing the Heltec ESP32 V3 board by integrating the GT-U7 GPS Module. The addition of this module provides precise GPS capabilities and a real-time clock (RTC), eliminating the need for WiFi or a smartphone for time tracking. This enhancement is particularly beneficial for the mesh, where tracking the duration since the last seen device is crucial.
|
|
However, it's important to note that the GPS module increases the power demand of your node. We'll address this by detailing how to incorporate a switch or an NPN 2N2222 transistor into your setup. This enables firmware-controlled power management, conserving battery life without sacrificing functionality.
|
|
|
|
It is important to note that the GPS module increases the power demand of the node. This guide details the incorporation of a switch or an NPN 2N2222 transistor to enable firmware-controlled power management, conserving battery life without compromising functionality.
|
|
|
|
### Benefits
|
|
|
|
- **GPS Capabilities**: Provides the node with the ability to determine its location with high precision, which is invaluable for tracking, mapping, and various other applications requiring location data.
|
|
- **Real-Time Clock (RTC)**: Ensures accurate timekeeping on the mesh network without relying on external time sources such as the internet or a connected smartphone.
|
|
|
|
### Power Consumption Considerations
|
|
|
|
The GT-U7 module is known for its high power consumption, which can potentially shorten the battery lifespan of the node. To mitigate this, two approaches are recommended:
|
|
|
|
- **Manual Switch**: A simple on/off switch for the GPS module, allowing for manual power management.
|
|
- **NPN 2N2222 Transistor**: Facilitates automatic power control through the firmware, enabling the device to turn off the GPS module based on specific conditions or after a set period.
|
|
|
|
### Materials Needed
|
|
|
|
- Heltec ESP32 V3 board
|
|
- GT-U7 GPS Module
|
|
- NPN 2N2222 Transistor
|
|
- Wires and soldering equipment
|
|
- (Optional) Switch for manual power control
|
|
|
|
### Instructions
|
|
|
|
1. Solder a cable from the TXD slot on the GPS module to GPIO 48 on Heltec board. (You may choose your own GPIO pin)
|
|
2. Solder a cable from the RXD slot on the GPS module to GPIO 47 on Heltec board. (You may choose your own GPIO pin)
|
|
3. Solder a cable from the GND slot on the GPS module to GND pin on Heltec board.
|
|
4. Solder a cable from left leg of NPN 2N2222 Transistor to VCC skit on GPS module.
|
|
5. Solder a cable from Right leg of NPN 2N2222 Transistor to 3V/5V pin on Heltec board.
|
|
6. Solder a cable from Middle leg of NPN 2N2222 Transistor to GPIO 48 of Heltec board. (You may choose your own GPIO pin)
|
|
7. Go to Meshtastic app > Radio Configurations > Position
|
|
8. Set GPS_RX_PIN to 48 (This will communicate to the TXD slot on the GPS)
|
|
9. Set GPS_TX_PIN to 47 (This will communicate to the RXD slot on the GPS)
|
|
10. Set PIN_GPS_EN to 46 (This will allow the meshtastic firmware to turn off the power on the GPS board with the user button of the Heltec Board by pressing it 3 times)
|
|
|
|
### Wiring Diagram
|
|
|
|
|
|
|
|
### Troubleshooting Tips
|
|
|
|
If the GPS module does not power on, check the connections to the transistor and ensure that the middle pin is properly configured in the firmware settings.
|
|
If the message "GPS is Disabled" appears, press the user button on the Heltec board three times to enable it.
|
|
If the message "No GPS Present" appears, check that the TXD and RXD are correctly configured.
|
|
If the message "No GPS Lock" appears, move the node to another location with access to the sky for a bit to lock on properly.
|
|
If the location is not accurate, walk around to allow the GPS to properly lock on.
|
|
|
|
### Conclusion
|
|
|
|
By following this guide, you can enhance your Heltec ESP32 V3 board with valuable GPS capabilities and an RTC, while effectively managing power consumption. Whether for a hobby project or a more serious application, these additions significantly expand the potential of your device.
|
|
|
|
</TabItem>
|
|
<TabItem value="Keyboard">
|
|
|
|
## Keyboard
|
|
|
|
Coming Soon
|
|
|
|
</TabItem>
|
|
<TabItem value="Buzzer">
|
|
|
|
## Buzzer
|
|
|
|
Coming Soon
|
|
|
|
</TabItem>
|
|
</Tabs>
|