The document compares Machine to Machine (M2M) communication with the Internet of Things (IoT), highlighting their differences in architecture, applications, and technologies. M2M focuses on device networking for data exchange with features such as low mobility and scheduled data transfer, while IoT emphasizes cloud storage and analytics. Key distinctions include communication protocols used and the types of hardware emphasized, with IoT leaning towards sensors and M2M towards embedded hardware.

1. Internet of Things: M2M vs IoT
Internet of Things tutorial Series
Navjyotsinh Jadeja
www.edtechnology.in

2. What is M2M
Machine to machine (M2M) is a broad label that can be used to describe any
technology that enables networked devices to exchange information and
perform actions without the manual assistance of humans.
Primarily M2M and IoT are similar in upper layer such as hardware,
networking or devices. But they differ in system architecture, types of
applications and underlying Technologies.

3. Block Diagram

4. Various important feature of M2M
M2M as discussed earlier refers to networking of various different types of devices for different
applications such as data exchange, consumer services, etc.
Keeping this very thing in mind below mentioned are the desired feature of M2M
communication systems.
1. Time Telerancy: These systems should be designed keeping in mind that data transfer may
take long time intervals.
2. Low Mobility: M2M unlike IOT devices are less Mobile. Hence, they have low mobility.
3. Scheduled: Data Sending/Receiving is pre-scheduled and happens with permission.
4. Low on power consumption: In order to efficiency of M2M application, it is a desired
feature.
5. Packet Switched: M2M device should provide packet switching services.

5. Key Differences
Domain IOT M2M
Application IoT data can be stored over cloud hence can be used for analytics
applications, remote diagnosis etc.
M2M data is more preferably stored in point solutions and can be
accessed locally. Hence used for on-premise solutions and local
diagnosis.
Protocols IoT & M2M differ in communication protocols and machines
communicate. In IoT, they focus on protocols above network
Layer
e.g. HTTP, COAP,DDS etc.
M2M uses proprietary and non ip based communication protocols
e.g. Zigbee, Bluetooth, Modbus, IEEE 802.15.4
Hardware IoT is more focused on sensors and interfacing. Various
components of IoT systems are sensors, internet and Networking
Infrastructure.
M2M is typically more emphasized on embedded Hardware.
Machines vs
Things
The things in IoT refers to objects which are uniquely identifiable
and can sense data
In contrast, M2M have homogeneous machines within network.