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Enhancing Wireless Communication with the Raspberry Pi Sim800c Module

Are you ready to learn about the incredible powers of the Raspberry Pi Sim800c? It may be another GSM/GPRS module but it offers much more. This tiny module can help you create projects requiring wireless communication, from remote wearable devices to robotic controllers—Pi board. Therefore, if you’re looking for an easy way to add wireless communication to your next project, Raspberry Pi and SIM800C have your back. So, prepare for an adventure into Raspberry Pi and SIM800C.

Raspberry Pi Sim800c: Definition

SIM800C is a GSM/GPRS module that can help add wireless communication capabilities to electronic devices. It is compatible with Raspberry Pi and is easy to connect to the GPIO pins of the board. Once connected, the SIM800C module can send and receive SMS messages, make and receive phone calls, and access the internet over GPRS. In addition, the module has a small form factor, low power consumption, and supports quad-band frequencies (850/900/1800/1900MHz). In simpler terms, combining Raspberry Pi with SIM800C allows you to create projects that require wireless communication capabilities.

Communication Features of Raspberry Pi Sim800c

Raspberry Pi PCB

The Raspberry Pi sim800c features some communication capabilities. These features enable the transfer to and reception of data from similar devices. The following are three of these communication features:

1. GPRS (General Packet Radio Service):

The SIM800C module, in conjunction with Raspberry Pi, enables GPRS (General Packet Radio Service) communication. GPRS is a packet-switched data service that allows for the transmission and reception of data via a mobile network. In addition, it permits the transmission of data packets between devices and the internet, making it perfect for Internet of Things (IoT) applications with low data rates.

You can wirelessly transmit and receive data via a mobile network using GPRS without requiring a Wi-Fi or Ethernet connection. This feature makes it a practical alternative for remote monitoring and control applications in which a wired connection may not be available or suitable. For instance, you can use Raspberry Pi with SIM800C to remotely monitor the temperature and humidity of a greenhouse and receive warnings if you exceed some specified criteria.

Moreover, GPRS permits the usage of the MQTT (Message Queuing Telemetry Transport) protocol, a lightweight messaging protocol built for IoT devices. MQTT allows you to transmit and receive data messages over GPRS, enabling you to construct IoT applications that interface with other devices and cloud services.

2. GSM (Global System for Mobile Communications):

SIM800C also has GSM (Global System for Mobile Communications) connectivity capabilities, allowing you to send and receive SMS messages and make and receive phone calls. This capability is handy for constructing mobile communication devices or adding communication features to existing projects.

For instance, you may use Raspberry Pi and SIM800C to create a mobile weather station to make and receive phone calls and send SMS notifications when the weather worsens. In addition, you can use it to develop a GPS-tracking gadget that delivers location updates via SMS and a remote-control system that lets you operate devices via the phone.

GSM communication also enables using USSD codes, employed by mobile network carriers, to deliver services such as balance inquiries, account management, and top-up services. In addition, with USSD, it is possible to design mobile applications that interface with mobile network services, enabling the development of novel mobile applications.

3. Bluetooth:

While the SIM800C module lacks Bluetooth capabilities, the Raspberry Pi has Bluetooth capabilities that can enable wireless communication with other devices. Bluetooth is a technology for short-range wireless communication that permits devices to exchange data across short distances.

Using Bluetooth, you can design applications that connect with other Bluetooth-enabled devices, such as smartphones, tablets, and Sensors. For instance, you may use Raspberry Pi with a Bluetooth sensor to monitor the temperature and humidity of a room and then transmit the data to a smartphone app for analysis and visualization.

Bluetooth also permits the usage of the BLE (Bluetooth Low Energy) protocol, intended for low-power IoT devices. Using BLE, it is possible to develop IoT applications tailored for battery-operated devices that consume minimal power. For instance, you can create a secure remote access system for your house or workplace using Raspberry Pi and a BLE-enabled smart lock.

Specifications of the Above Communication Features


Here are the detailed specifications for the three communication features of Raspberry Pi SIM800C:

1. Global System for Mobile Communications (GSM):

The following are some of the aspects of the Raspberry Pi Sim800C GSM module:

· Frequency Band:

The GSM module of the SIM800C supports four frequency bands, including 850MHz, 900MHz, 1800MHz, and 1900MHz. In addition, it employs a quad-band auto-search feature that searches automatically for the available frequency band.

· Emitting Power:

The SIM800C GSM module supports two different types of emitting power. Class 4 for 850/900MHz frequency bands can emit up to 2W of power, and Class 1 for 1800/1900MHz can emit up to 1W of power.

· SMS:

The SIM800C GSM module provides multiple SMS capabilities, including MT (Mobile Terminated), MO (Mobile Originated), CB (Cell Broadcast), Text, and PDU (Protocol Data Unit). Furthermore, it supports SMS storage on the SIM card and Unstructured Supplemental Service Data (USSD).

2. General Packet Radio Service (GPRS) Network Connectivity:

The Raspberry Pi Sim800C GPRS has the following aspects:

· Multi-Slot Class for GPRS:

By default, the SIM800C module supports GPRS Multi-Slot Class 12/10, whereas GPRS Multi-Slot Class 112 is customizable. The GPRS multi-slot class also classifies the number of timeslots useable for data transmission and reception.

· GPRS Data Capabilities:

The SIM800C offers UL/DL (Uplink/Downlink) data rates up to 85.6kbps. Moreover, it enables Packet Broadcast Control Channel (PBCCH) to broadcast control messages to many mobile stations. The module also supports multiple coding schemes, such as CS-1, CS-2, CS-3, and CS-4, which help encode the data.

For PPP (Point-to-Point Protocol) connections, the SIM800C supports PAP (Password Authentication Protocol). PAP is a protocol used to authenticate a person before granting access to a network.

· AT Commands:

The SIM800C module incorporates AT commands, which help control the module’s Bluetooth capabilities. AT commands are text commands transmitted from the Raspberry Pi to the module, which executes the command and returns a response.

3. Bluetooth Specification:

The SIM800C module adheres to Bluetooth protocol 3.0 + EDR (Enhanced Data Rate). The EDR delivers faster data transmission rates than Bluetooth’s earlier versions.

In addition, this module supports several Bluetooth profiles, including SPP (Serial Port Profile), OPP (Object Push Profile), HFP/HSP (Hands-Free Profile/Headset Profile), and others. These profiles define the types of services and functions supported over Bluetooth.

Other Features of the Raspberry Pi Sim800C

Raspberry Pi 4 vs 3

Besides the above characteristics, the Raspberry Pi Sim800C has the following additional features:

1. Power Source:

The Raspberry Pi’s USB port or pin header can supply the SIM800C module with the 5V power it needs. As a result, no extra parts are required to power the module.

2. Logic Level:

Both 3.3V and 5V logic levels are compatible with the SIM800C module. By setting the “VIO” pin to 3.3V, it is possible to change the device’s default logic level of 5V to 3.3V.

3. Ambient Temperature:

The operational temperature range for the SIM800C module is -40°C to 85°C. Because of this, it is applicable in various locations, including harsh industrial and outdoor conditions.

4. Storage Temperature

During storage, a temperature range of -45°C to 90°C is available for the SIM800C module. As a result, there is no danger of damage or degradation occurring while the module is in store for lengthy periods.

5. Dimensions

 The SIM800C module has dimensions of 30.2 x 65mm, which give it a small form factor. This feature makes it simple to integrate into various projects, even ones with strict space or portability needs.

Benefits of Raspberry Pi Sim800C Over Other Raspberry Pi Versions

The Raspberry Pi Sim800C module offers several benefits over other Raspberry Pi versions. Here are five benefits of the Raspberry Pi Sim800C module:

1. Low Power Usage:

The Sim800C module uses little power, which makes it perfect for projects that use batteries. For example, in sleep mode, it uses just 0.7mA, and in active mode, 350mA. Due to its low power consumption, it is appropriate for Internet of Things applications where devices must operate for lengthy periods on battery power.

2. Expandability:

The Sim800C module has expandability options that let users give their projects extra capabilities. Moreover, the module’s SIM card slot enables cellular network connectivity. It can also communicate with other devices thanks to a serial interface. The GPIO pins on it can also help connect sensors and other devices.

3. Low Price:

The Sim800C module is available at a reasonable price compared to other Raspberry Pi models. Furthermore, the module has a low price and is useable with a cheap Raspberry Pi board. This feature makes it the perfect option for situations where cost is a crucial factor.

4. Small Size:

Small in size, the Sim800C module has dimensions of 30.2 x 65mm. It is perfect for applications with a limited area due to its small size. Including it in compact gadgets like trackers, wearables, and other Internet of Things applications that call for a small footprint can be easy.

5. Easy Connectivity:

The Sim800C module offers easy connectivity options. It has a UART interface that can communicate with a Raspberry Pi or any other microcontroller. The module is also easy to connect to a cellular network, enabling it to send and receive data from anywhere with a cellular connection. This easy connectivity makes it ideal for IoT applications where devices need a connection to the internet or other devices.

Applications of the Raspberry Pi Sim800C

The Raspberry Pi Sim800C module has numerous applications in various fields. Here are six applications of the Raspberry Pi Sim800C:

1. Gaming:

You may build portable gaming devices that can connect to cellular networks with the Raspberry Pi Sim800C module. It is easy to integrate with tiny screens and keyboards, joysticks, and buttons for input. Gamers may also connect to online gaming services over cellular networks and take their gaming devices with them, thanks to the Sim800C module.

2. Security:

Security applications like remote surveillance and monitoring systems can use the Sim800C module. The module can help link cameras and other sensors, allowing cellular network-based remote access to the system. A cellular connection enables users to monitor their residences or companies from any location.

3. The Smart Home:

Devices for the smart home, such as thermostats, door locks, and security systems, can incorporate the Sim800C module. Connecting these devices to cellular networks allows for remote access and control from any location with a cellular connection. In addition, users may manage their smart homes via smartphones, tablets, or other devices with the Sim800C module.

4. Robotics:

Robotic applications like remote control and robot monitoring can use the Sim800C module. Users can, therefore, operate their robots over cellular networks by connecting the module to a Raspberry Pi or other microcontroller. Robots are now easy to use remotely from any location with a cell phone connection thanks to the Sim800C module, making it possible to work in dangerous or challenging circumstances.

5. Wearable Technology:

The Sim800C module is easy to include in wearables like smartwatches, fitness trackers, and medical monitoring equipment. Consequently, users can remotely monitor their health and fitness data due to the module’s ability to integrate into compact form factor devices and connect to cellular networks. Users of the Sim800C module can access their health information, track their exercises, and receive notifications from anywhere they have a cellular connection.

6. Image Identification:

The Sim800C module also applies to applications such as facial recognition software and surveillance cameras. The module allows remote access and control over cellular networks and is interfaceable with cameras and other sensors. The Sim800C module is the best option for security and surveillance applications because it allows users to see and identify people remotely.


In conclusion, the Raspberry Pi Sim800C is a versatile device applicable to various tasks, from gaming to security and surveillance. Furthermore, it is the ideal module for developing projects that need wireless communication capabilities due to its low power consumption, low cost, and tiny size. Furthermore, with this powerful board at their disposal, the possibilities are truly endless. Therefore, it is understandable why makers, hackers, and engineers have taken such an interest in the Raspberry Pi Sim800C; it may be the final piece needed to realize your Raspberry Pi’s full potential. So, why not dust off your creativity and start preparing to unleash your next big Raspberry Pi 5 project?




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