Design with SIM7600E Module in Cirkit DesignerThe SIM7600E is a 4G LTE module designed to provide high-speed mobile data connectivity for IoT (Internet of Things) applications. It supports a wide range of communication protocols, including LTE, GSM, GPRS, and EDGE, making it a versatile choice for projects requiring reliable wireless communication. Additionally, the module features GPS functionality, enabling location-based services and navigation.
This circuit integrates an ESP8266 NodeMCU microcontroller with a SIM800L GSM module, a GPS NEO 6M module, and a 16x2 I2C LCD display for communication and location tracking. It also includes a pushbutton for user input, a piezo buzzer for audio alerts, and is powered by a 2x 18650 battery pack through an LM2596 step-down module.
Open Project in Cirkit Designer
This circuit features an Arduino Mega 2560 microcontroller interfaced with a SIM800L GSM module, two fingerprint scanners, an I2C LCD display, an IR sensor, and a piezo buzzer. Power management is handled by a PowerBoost 1000 Basic Pad USB, a TP4056 charging module, and a Li-ion 18650 battery, with an option to use a Mini AC-DC 110V-230V to 5V 700mA module for direct power supply. The primary functionality appears to be a security system with GSM communication capabilities, biometric access control, and visual/audible feedback.
Open Project in Cirkit Designer
This is a sensor-based data acquisition system with GSM communication capability. It uses an ESP8266 NodeMCU to collect environmental data from a DHT22 sensor and light levels from an LDR, as well as distance measurements from an HC-SR04 ultrasonic sensor. The SIM900A GSM module enables the system to transmit the collected data over a cellular network.
Open Project in Cirkit Designer
This circuit features a LilyGo-SIM7000G module for cellular communication and GPS functionality, interfaced with an RTC DS3231 for real-time clock capabilities. It includes voltage sensing through two voltage sensor modules, and uses an 8-channel opto-coupler for isolating different parts of the circuit. Power management is handled by a buck converter connected to a DC power source and batteries, with a fuse for protection and a rocker switch for on/off control. Additionally, there's an LED for indication purposes.
Open Project in Cirkit DesignerThe SIM7600E module is packed with features that make it suitable for a variety of applications. Below are its key technical specifications:
| Parameter | Value |
|---|---|
| Cellular Network Support | 4G LTE, 3G, 2G |
| GPS Support | Yes (GNSS: GPS, GLONASS, BeiDou, Galileo) |
| Data Rates | LTE Cat-1: Uplink 5 Mbps, Downlink 10 Mbps |
| Operating Voltage | 3.4V to 4.2V |
| Power Consumption | Idle: ~20mA, Active: ~500mA |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 30mm x 30mm x 2.9mm |
The SIM7600E module has multiple pins for power, communication, and control. Below is the pinout description:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power supply input (3.4V to 4.2V) |
| 2 | GND | Ground |
| 3 | TXD | UART Transmit |
| 4 | RXD | UART Receive |
| 5 | NET_STATUS | Network status indicator |
| 6 | PWRKEY | Power on/off control |
| 7 | GNSS_TXD | GNSS UART Transmit |
| 8 | GNSS_RXD | GNSS UART Receive |
| 9 | USB_D+ | USB data positive |
| 10 | USB_D- | USB data negative |
| 11 | SIM_VDD | SIM card power supply |
| 12 | SIM_DATA | SIM card data |
| 13 | SIM_CLK | SIM card clock |
| 14 | SIM_RST | SIM card reset |
Below is an example of how to send an SMS using the SIM7600E module with an Arduino UNO:
#include <SoftwareSerial.h>
// Define RX and TX pins for SoftwareSerial
SoftwareSerial sim7600(10, 11); // RX = pin 10, TX = pin 11
void setup() {
Serial.begin(9600); // Initialize Serial Monitor
sim7600.begin(9600); // Initialize SIM7600E communication
// Power on the module
pinMode(9, OUTPUT); // PWRKEY connected to pin 9
digitalWrite(9, LOW); // Pull PWRKEY low
delay(1000); // Wait for 1 second
digitalWrite(9, HIGH); // Release PWRKEY
delay(5000); // Wait for the module to initialize
// Send AT commands to configure the module
sendCommand("AT"); // Check communication
sendCommand("AT+CMGF=1"); // Set SMS mode to text
sendCommand("AT+CMGS=\"+1234567890\""); // Replace with recipient's number
sim7600.print("Hello, this is a test SMS from SIM7600E!"); // SMS content
sim7600.write(26); // Send Ctrl+Z to send the SMS
}
void loop() {
// Continuously read data from the module
if (sim7600.available()) {
Serial.write(sim7600.read());
}
}
// Function to send AT commands
void sendCommand(String command) {
sim7600.println(command);
delay(1000); // Wait for the module to respond
while (sim7600.available()) {
Serial.write(sim7600.read());
}
}
Module Not Powering On
No Network Connection
AT+CSQ command to check signal strength. A value above 10 is recommended.GPS Not Working
AT+CGNSPWR=1 command to enable GPS functionality.No Response to AT Commands
Q: Can the SIM7600E module work with 5V microcontrollers?
A: Yes, but you must use a logic level converter to shift the 5V signals to 3.3V for the module's UART pins.
Q: How do I check the module's firmware version?
A: Use the AT+CGMR command to query the firmware version.
Q: Can I use the SIM7600E for voice calls?
A: Yes, the module supports voice calls. Use the ATD command to dial a number and ATH to hang up.
Q: What is the maximum data rate supported by the module?
A: The SIM7600E supports LTE Cat-1 with a maximum uplink speed of 5 Mbps and downlink speed of 10 Mbps.