endiio EN-WM2 Wireless Module
Revision History
| Revision | Date | Description |
| v1.0 | 12.12.2024 | Initial Release |
| v1.1 | 30.01.2025 | Adding a Note in the Section Electrical & Mechanical Specification |
Introduction
The endiio Wireless Module is a Sub-GHz (915MHz) wireless device based on the CC1352P7 microcontroller.
It allows the wireless communication between the low-energy wireless sensor nodes and the central unit (Gateway). It supports the 2.4GHz wireless communication as well but this feature is not implemented.
The endiio Wireless module has the ability to communicate with a big variety of sensors over the I²C and SPI buses and a couple of Analog and digital lines.
Product Marketing Information
Table 1 Product Marketing Information
| Module Name | Endiio Wireless Module v2 |
| UPN (Unique Product Nr.) | ENWM2 |
| PMN (Product Marketing Nr.) | endiio WM |
| HVIN (Hardware Version Id Nr.) | V2.2 |
| HMN (Host Marketing Name) | endiio Wireless System |
| FCC ID | 2BL4CEN-WM2 |
| IC Number | 33310-ENWM2 |
Electrical & Mechanical Specification
Table 2 Product Electrical and Mechanical Specification
| Input Voltage | 2.9 – 3.6 V |
| Operating Temperature | -30 – 120 °C |
| Wireless Frequency Band | 902 – 928 MHz |
| No. of Wireless Channels | 4 (915.4, 915.6, 915.8, 916.0 MHz) |
| Maximum Output Transmission Power | 8 dBm |
| Antenna | MikroTik 868 Omni antenna |
| Antenna Gain | 4.5 dBi |
| Wireless Modulation | GFSK |
| Wireless Protocol | IEEE 802.15.4 |
| Sampling Rate | 15 min. |
| Polling Rate | 30 sec. |
| Dimensions (W x H x D) | 32 x 3.2 x 23 mm |
Note: The Omni-Antenna is realized with SMA connector by manufacturing. A SMA-RPSMA adapter is mounted and glued to the antenna using epoxy compound at our factory prior to shipment, see the figures below. Thus, the antenna would be shipped with a unique connector.
Product Photo
Pinout
Table 3 endiio Wireless Module Pinout
| Pin# | I/O | Functionality | Pin# | I/O | Functionality |
| 1 | I/O | DIO26 | 20 | Power | GND |
| 2 | I | HOST_SPI/UART-_(DIO19) | 21 | O | SPI_CS_RAM_(DIO7) |
| 3 | O | Mem_Power_Enable_(DIO27) | 22 | I/O | DIO14 |
| 4 | I/O | DIO28 | 23 | NC | |
| 5 | I | Comm_Req_(DIO5) | 24 | I | SPI_B_MISO_(DIO8) |
| 6 | I/O | SDA_(DIO21) | 25 | O | SPI_B_MOSI_(DIO9) |
| 7 | O | SCK_(DIO20) | 26 | O | SPI_B_CLK_(DIO10) |
| 8 | I/O | DIO15 | 27 | O | SPI_A_MOSI_(DIO13) |
| 9 | O | LED_PCB_(DIO6) | 28 | I | SPI_A_MISO_(DIO12) |
| 10 | I | INT#1_(DIO29) | 29 | Power | GND |
| 11 | I | INT#2_(DIO30) | 30 | I/O | RF Port |
| 12 | Power | GND | 31 | Power | GND |
| 13 | Power | VDD (2.9 – 3.6 V) | 32 | Power | GND |
| 14 | I | Ain3_(DIO25) | 33 | I | JTAG – tms |
| 15 | I | nRst | 34 | I | JTAG – tck |
| 16 | I | Ain2_(DIO24) | 35 | I/O | JTAG – tdo/LED_(DIO16) |
| 17 | I | Ain1_(DIO23) | 36 | I/O | JTAG – tdi/HF_Ctrl2_(DIO17) |
| 18 | O | SPI_A_CLK_(DIO18) | 37 | I | nRst |
| 19 | Power | GND | 38 | Power | VDD (2.9 – 3.6 V) |
Certifications and Compatibilities
CE RED (Europe)
The device is RED (Radio Equipment Directive) certified for the Sub-GHz. Frequency band (868 MHz).
FCC Part 15 (USA) and ISED RSS (Canada)
This wireless module contains a licence-exempt transmitter/receiver that complies with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s) and complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including interference that may cause undesired operation of the device.
RF Exposure Information
This equipment complies with FCC and ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Note: Changes or modifications made to this equipment not expressly approved by endiio Engineering GmbH may void the FCC authorization to operate this equipment.
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
Freiburg, 30.01.2025
v1.1
Documents / Resources
 |
endiio EN-WM2 Wireless Module [pdf] User Manual EN-WM2, 2BL4CEN-WM2, 2BL4CENWM2, EN-WM2 Wireless Module, EN-WM2, Wireless Module, Module |
