meshtastic/docs/hardware/gpsmodule.md

---
id: gpsmodule
title: External GPS Module
sidebar_label: GPS Module
sidebar_position: 3
---

:::warning
GPIO access is fundamentally dangerous because invalid options can physically damage or destroy your hardware. Ensure that you fully understand the schematic for your particular device before trying this as we do not offer a warranty. Use at your own risk.
:::

External GPS modules can be installed to extend the capabilities of simple boards.

## GY-GPS6MV2 GPS module

- Based on the ublox/u-blox NEO-6M module
- Input: 3 to 5V
- Interface: RS232 TTL
- Default baud rate: 9600 bps
- Output: NMEA sentences

[<img src="/img/hardware/gy-gps6mv2.jpg" alt="GY-GPS6MV2" style={{zoom:'50%'}} />](/img/hardware/gy-gps6mv2.jpg)

### LILYGO TTGO Lora32 v2.1-1.6

- Wiring instructions:

| GPS Module Pin | TTGO Lora32 v2.1-1.6 Pin |
| :------------: | :----------------------: |
|      VCC       |           3.3V           |
|       RX       |           IO13           |
|       TX       |           IO15           |
|      GND       |           GND            |

- Once the module is connected, it should be detected automatically by the firmware.

### LILYGO TTGO Lora32 v2.0

- Wiring instructions:

| GPS Module Pin | TTGO Lora32 v2.0 Pin |
| :------------: | :------------------: |
|      VCC       |         3.3V         |
|       RX       |          13          |
|       TX       |          36          |
|      GND       |         GND          |

- Once the module is connected, it should be detected automatically by the firmware.

### LILYGO TTGO Lora32 v1.3

- Wiring instructions:

| GPS Module Pin | TTGO Lora32 v1.3 Pin |
| :------------: | :------------------: |
|      VCC       |         3.3V         |
|       RX       |          13          |
|       TX       |          36          |
|      GND       |         GND          |

- Once the module is connected, it should be detected automatically by the firmware.

### LILYGO TTGO Lora32 V1.0

- Wiring instructions:

| GPS Module Pin | TTGO Lora32 v1.0 Pin |
| :------------: | :------------------: |
|      VCC       |         3.3V         |
|       RX       |          37          |
|       TX       |          36          |
|      GND       |         GND          |

- Once the module is connected, it should be detected automatically by the firmware.

### Heltec Lora32 v2.0 and v2.1

- Wiring instructions:

| GPS Module Pin | Heltec Lora32 Pin |
| :------------: | :---------------: |
|      VCC       |       3.3V        |
|       RX       |        37         |
|       TX       |        36         |
|      GND       |        GND        |

- Once the module is connected, it should be detected automatically by the firmware.
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00			`---`
			`id: gpsmodule`
			`title: External GPS Module`
			`sidebar_label: GPS Module`
Tidying up hardware section The custom.css changes have changed the behaviour of list items, removing the top & bottom margins, so hopefully looking more like a list and less like a group of items spread across the page. 2022-04-22 16:09:23 -07:00			`sidebar_position: 3`
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00			`---`

			`:::warning`
			`GPIO access is fundamentally dangerous because invalid options can physically damage or destroy your hardware. Ensure that you fully understand the schematic for your particular device before trying this as we do not offer a warranty. Use at your own risk.`
			`:::`

			`External GPS modules can be installed to extend the capabilities of simple boards.`

			`## GY-GPS6MV2 GPS module`
pnpm format ran 2022-04-01 14:07:46 -07:00
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00			`- Based on the ublox/u-blox NEO-6M module`
			`- Input: 3 to 5V`
			`- Interface: RS232 TTL`
			`- Default baud rate: 9600 bps`
			`- Output: NMEA sentences`

			`[<img src="/img/hardware/gy-gps6mv2.jpg" alt="GY-GPS6MV2" style={{zoom:'50%'}} />](/img/hardware/gy-gps6mv2.jpg)`

			`### LILYGO TTGO Lora32 v2.1-1.6`

			`- Wiring instructions:`

			`\| GPS Module Pin \| TTGO Lora32 v2.1-1.6 Pin \|`
pnpm format ran 2022-04-01 14:07:46 -07:00			`\| :------------: \| :----------------------: \|`
			`\| VCC \| 3.3V \|`
			`\| RX \| IO13 \|`
			`\| TX \| IO15 \|`
			`\| GND \| GND \|`
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00
			`- Once the module is connected, it should be detected automatically by the firmware.`

			`### LILYGO TTGO Lora32 v2.0`

			`- Wiring instructions:`

			`\| GPS Module Pin \| TTGO Lora32 v2.0 Pin \|`
pnpm format ran 2022-04-01 14:07:46 -07:00			`\| :------------: \| :------------------: \|`
			`\| VCC \| 3.3V \|`
			`\| RX \| 13 \|`
			`\| TX \| 36 \|`
			`\| GND \| GND \|`
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00
			`- Once the module is connected, it should be detected automatically by the firmware.`

			`### LILYGO TTGO Lora32 v1.3`

			`- Wiring instructions:`

pnpm format ran 2022-04-01 14:07:46 -07:00			`\| GPS Module Pin \| TTGO Lora32 v1.3 Pin \|`
			`\| :------------: \| :------------------: \|`
			`\| VCC \| 3.3V \|`
			`\| RX \| 13 \|`
			`\| TX \| 36 \|`
			`\| GND \| GND \|`
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00
			`- Once the module is connected, it should be detected automatically by the firmware.`

			`### LILYGO TTGO Lora32 V1.0`

			`- Wiring instructions:`

pnpm format ran 2022-04-01 14:07:46 -07:00			`\| GPS Module Pin \| TTGO Lora32 v1.0 Pin \|`
			`\| :------------: \| :------------------: \|`
			`\| VCC \| 3.3V \|`
			`\| RX \| 37 \|`
			`\| TX \| 36 \|`
			`\| GND \| GND \|`
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00
			`- Once the module is connected, it should be detected automatically by the firmware.`

			`### Heltec Lora32 v2.0 and v2.1`

			`- Wiring instructions:`

pnpm format ran 2022-04-01 14:07:46 -07:00			`\| GPS Module Pin \| Heltec Lora32 Pin \|`
			`\| :------------: \| :---------------: \|`
			`\| VCC \| 3.3V \|`
			`\| RX \| 37 \|`
			`\| TX \| 36 \|`
			`\| GND \| GND \|`
Danpeig master (#290) * External GPS module instructions Instructions on how to use external GPS modules on boards without this functionality. More to come.... * GPS module * New modules added Extended the list of boards and pin maps. * Update gpsmodule.md * Update gpsmodule.md * GPIO warning To keep consistency across documentation pages. * Final revision * Revert unwanted changes Co-authored-by: Daniel BP <daniel@brookepeig.com> 2022-03-19 20:05:14 -07:00
			`- Once the module is connected, it should be detected automatically by the firmware.`