User's Guide
Table Of Contents
- Document related firmware and hardware
- Form factor
- General Specifications
- Interfaces
- Specifications
- Regulatory conformity summary
- Technical Drawing
- GPIOs
- 16 pins connector
- 8 pins connector
- Power supply design
- Board layout
- Antenna performance
- Introduction
- Generic message structure
- Communication protocol
- Encryption (6 bits)
- Message Type (1 bit)
- Simplified Mode
- Message types
- Payload: Simplified Message type
- Message Type advanced
- Encryption Types
- Payload
- Payload [0] PayloadType <4: 0>
- payload [0] PayloadType <7: 5>
- TypeID
- Refresh
- DataWithoutAck
- DataWithAck
- FileTransfer
- Event
- Return
- Get
- Set
- Payload [1]: sub-type <7: 0>
- AckData 0x03
- RoutingTableInfo 0x20
- TableLvl1 0x21
- DebugInfos 0x22
- Settings 0x23
- Rssi 0x24
- MasterID 0x25
- NackInfos 0x2B
- DecryptionError 0x2C
- WrongParameter 0x2D
- Payload [1]: subType <7: 0>
- TypeID 0x00
- Refresh 0x01
- RoutingTableInfo 0x20
- TableLvl1 0x21
- DebugInfos 0x22
- Settings 0x23
- Rssi 0x24
- MasterID 0x25
- 0x23Settings
- MasterID 0x25
- ForceRelay 0x26
- Password 0x26
- ResetMcu 0x28
- CloseDevice 0x29
- United States (FCC)
- OEM labeling requirements
- FCC notices
- FCC-approved antennas
- RF exposure
- CANADA - ISED (Innovation, Science and Economic Development Canada)
- Labeling requirements
- Detachable antenna
- EUROPE (CE)
- Maximum power and frequency specifications
- OEM labeling requirements
- Declarations of conformity
- Antennas
13
Design Notes
The following guidelines help to ensure a robust design and allowes regulation
conformity."
Power supply design
The emMesh has an integrated voltage regulator. Only a single external supply source
is needed. For best performances, make sure the supply voltage is within tolerance.
Limit the power supply ripple to 100mV maximum. Also make sure the supply source
can withstand peak current of 250mA. Adding a 100uF capacitor at the input will help
sustain the peak current demand of the emMesh."
Board layout
The emMesh is designed to be used as a standalone device or integrated in another
board, thus, it does not has any board layout requirement other than usual practice for
pcb design."
Antenna performance
The following suggestions help you achieve optimal antenna performance. "
Point the antenna up vertically (upright). "
Position the antennas away from metal objects whenever possible. "
If you place the device inside a metal enclosure, use an external antenna. "
Do not place any ground planes or metal objects above or below the antenna. "
For the best results, mount the device at the edge of the host PCB. "
Ensure that the ground, power, and signal planes are vacant immediately below the
antenna section."