ATGM336H Dual-Mode GNSS GPS Module – High Sensitivity, Fast Fix, NEO-M8N Compatible

Dual-Mode GNSS (GPS + BeiDou)
High positioning accuracy
Fast satellite lock (Quick TTFF)
High sensitivity receiver
NEO-M8N compatible
Low power consumption
UART interface with NMEA output
Compact and lightweight design

SKU: Ek1932 Category: Electronic Modules Tag: Electronic Modules

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Description

The ATGM336H Dual-Mode GNSS Module is a high-performance satellite navigation receiver supporting GPS and BeiDou (BDS) systems. Designed as a reliable and cost-effective alternative to the u-blox NEO-M8N, it delivers fast positioning, high sensitivity, and stable performance even in challenging environments such as urban areas or weak signal conditions.

This module is ideal for navigation systems, tracking devices, drones, robotics, IoT projects, and embedded applications. With low power consumption, compact size, and standard UART communication, the ATGM336H integrates easily with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers.

⭐ Key Features

Dual-mode GNSS support: GPS + BeiDou (BDS)
High sensitivity receiver for reliable positioning
Fast Time-To-First-Fix (TTFF)
Compatible with NEO-M8N pinout and functionality
Supports standard NMEA output protocol
Low power consumption, suitable for battery-powered devices
Compact and lightweight design
Stable performance in urban and low-signal environments
UART interface for easy integration
Ideal for tracking, navigation, and positioning applications

⚙️ Specifications

Specification	Details
GNSS Systems	GPS, BeiDou (BDS)
Positioning Accuracy	Up to 2.5 m CEP
Tracking Sensitivity	Approx. -165 dBm
Cold Start TTFF	≤ 32 seconds
Hot Start TTFF	≤ 1 second
Operating Voltage	3.0 – 5.0 V (typical 3.3V)
Communication Interface	UART (TX / RX)
Baud Rate	Default 9600 bps
Output Protocol	NMEA 0183
Operating Temperature	-40°C to +85°C
Antenna Type	External active antenna support
Dimensions	Compact PCB design
Compatibility	Arduino, ESP32, STM32, Raspberry Pi

Applications

GPS tracking systems
Vehicle navigation
Drones and UAVs
Robotics projects
IoT location-based devices
Fleet management
Embedded positioning systems

🔌

Pin Connections

1 Table

Pin Connections Table 1

Board	Sensor Pin	Connection
ATGM336H	VCC/GND/TX/RX	3.3-5V / GND / board RX pin / board TX pin

📟

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible

7 Examples • C/C++ | Boards: Arduino Uno, Arduino Nano, Arduino Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico

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ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - Arduino Uno

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - Arduino Nano

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - Arduino Mega

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - ESP32

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - ESP8266

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - STM32

ATGM336H Dual-Mode GNSS GPS Module - High Sensitivity, Fast Fix, NEO-M8N Compatible - Raspberry Pi Pico

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_arduino_uno.inoArduino Uno

524 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=2, TX=3 on Arduino Uno

6#include <SoftwareSerial.h>

7SoftwareSerial LINK_SERIAL(2, 3);

9#include <TinyGPS++.h>

11TinyGPSPlus gps;

13void setup() {

14 Serial.begin(115200);

15 LINK_SERIAL.begin(9600);

16}

18void loop() {

19 while (LINK_SERIAL.available()) {

20 gps.encode(LINK_SERIAL.read());

21 }

22 if (gps.location.isUpdated()) {

23 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

24 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

25 }

26}

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_arduino_nano.inoArduino Nano

525 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=2, TX=3 on Arduino Nano

6#include <SoftwareSerial.h>

7SoftwareSerial LINK_SERIAL(2, 3);

9#include <TinyGPS++.h>

11TinyGPSPlus gps;

13void setup() {

14 Serial.begin(115200);

15 LINK_SERIAL.begin(9600);

16}

18void loop() {

19 while (LINK_SERIAL.available()) {

20 gps.encode(LINK_SERIAL.read());

21 }

22 if (gps.location.isUpdated()) {

23 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

24 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

25 }

26}

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_arduino_mega.inoArduino Mega

493 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=19, TX=18 on Arduino Mega

6#define LINK_SERIAL Serial1

8#include <TinyGPS++.h>

10TinyGPSPlus gps;

12void setup() {

13 Serial.begin(115200);

14 LINK_SERIAL.begin(9600);

15}

17void loop() {

18 while (LINK_SERIAL.available()) {

19 gps.encode(LINK_SERIAL.read());

20 }

21 if (gps.location.isUpdated()) {

22 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

23 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

24 }

25}

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_esp32.inoESP32

486 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=16, TX=17 on ESP32

6#define LINK_SERIAL Serial1

8#include <TinyGPS++.h>

10TinyGPSPlus gps;

12void setup() {

13 Serial.begin(115200);

14 LINK_SERIAL.begin(9600);

15}

17void loop() {

18 while (LINK_SERIAL.available()) {

19 gps.encode(LINK_SERIAL.read());

20 }

21 if (gps.location.isUpdated()) {

22 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

23 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

24 }

25}

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_esp8266.inoESP8266

524 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=D7, TX=D8 on ESP8266

6#include <SoftwareSerial.h>

7SoftwareSerial LINK_SERIAL(D7, D8);

9#include <TinyGPS++.h>

11TinyGPSPlus gps;

13void setup() {

14 Serial.begin(115200);

15 LINK_SERIAL.begin(9600);

16}

18void loop() {

19 while (LINK_SERIAL.available()) {

20 gps.encode(LINK_SERIAL.read());

21 }

22 if (gps.location.isUpdated()) {

23 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

24 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

25 }

26}

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_stm32.inoSTM32

489 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=PA10, TX=PA9 on STM32

6#define LINK_SERIAL Serial1

8#include <TinyGPS++.h>

10TinyGPSPlus gps;

12void setup() {

13 Serial.begin(115200);

14 LINK_SERIAL.begin(9600);

15}

17void loop() {

18 while (LINK_SERIAL.available()) {

19 gps.encode(LINK_SERIAL.read());

20 }

21 if (gps.location.isUpdated()) {

22 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

23 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

24 }

25}

📄 File: atgm336h_dual-mode_gnss_gps_module_-_high_sensitivity,_fast_fix,_neo-m8n_compatible_-_raspberry_pi_pico.inoRaspberry Pi Pico

496 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=1, TX=0 on Raspberry Pi Pico

6#define LINK_SERIAL Serial1

8#include <TinyGPS++.h>

10TinyGPSPlus gps;

12void setup() {

13 Serial.begin(115200);

14 LINK_SERIAL.begin(9600);

15}

17void loop() {

18 while (LINK_SERIAL.available()) {

19 gps.encode(LINK_SERIAL.read());

20 }

21 if (gps.location.isUpdated()) {

22 Serial.print("Lat: "); Serial.print(gps.location.lat(), 6);

23 Serial.print(" Lng: "); Serial.println(gps.location.lng(), 6);

24 }

25}

Project Notes:

UART GPS/GNSS receiver, NMEA-compatible output.

Required Libraries:

TinyGPS++GitHub

Specification

WeightWeight	8 g
Dimensions	4 × 3 × 1,5 cm
Model	ATGM336H
GNSS Type	Dual-Mode GNSS (GPS + BeiDou)
Compatibility	Compatible with NEO-M8N
Sensitivity (Tracking)	-165 dBm
Sensitivity (Acquisition)	-148 dBm
Time To First Fix (Cold Start)	≤ 30 ثانية
Time To First Fix (Hot Start)	≤ 1 ثانية
Position Accuracy	±2.5 متر
Update Rate	حتى 10Hz
Communication Interface	UART (TTL)
Baud Rate	9600bps (افتراضي)
Operating Voltage	3.3V – 5V
Operating Current	~25mA
Antenna Type	External Active Antenna
Protocol Support	NMEA 0183
Operating Temperature	-40°C إلى +85°C
Application	Navigation, Tracking, Drones, Robotics, IoT
Country of Origin	China