Following should be considered when selecting a Wifi Module for Electronic Product
- Operating Frequency bands
- 2.4Ghz - 802.11 b/g/n
- 5Ghz - 802.11 a/h/ac
- 5.9Ghz -802.11 p
- Transmission range
- TX power, power usage
- Reducing frequency can increase the range same time data rate reduces
- Can increase using repeaters (will regenerate the signal if signals are dropped or interfered with environment noises) and range extenders
- Bandwidth
- Raw datarate - raw bit rate
- User data rate
- Idle data rate - max data rate
- Embedded soc chip or external chip
- Driver support
- C++libs or API or windows drivers
- Module
- Security Standards
- Encryption
- Authentication scheme
- WEP
- WPA
- WPS
- WMM
- Interface
- UART
- SPI
- SDIO
- USB
- I2C
- Antenna
- Omni direction antenna 360-degree antenna / smaller range (wifi routers)
- Directional antenna/ higher range/ transmission selected range 20 degree straight forward
- UFL connector with external antenna
- PCB antenna
- SMD antenna chip
- Certifications
- Country-wise citification
- Certifications should be passed according to country standards where the product is going to be sold
- FCC - USA
- IC - Canada
- CE - Europe
- Available documents
- Datasheets
- PCB layout diagrams
- Hardware design test results
- Pwer usages/modes related details
- Suppliers
- Component distributors should have selected devices in their stocks
- Select 2-3 suppliers as a backup if one supplier goes out of stock during production
- Usable Applications
- Automobile
- Mobile devices
- Personal electronics
- Medical grade
- Health and fitness
- Do targeted customers required RoHS confermance?
- IEEE standards
- IEEE 802.11 a/b/g/j/n/p/ac/ad
- Operating frequency
- Range
- Data rate
- OTP
- Over the air program download option
- Cost
- Module size/chip package size
- Other available options
- BLE / BT dual mode
- Dual-band eg - 5Ghz and 2.4Ghz
- Two-Way
- One-to-Many
- Many-to-One
- Hotspot
- Soft acees point
- Manufacturer support
- Drivers
- Tutorials
- User guides
- Version upgrades
- Continuous production - the selected wifi device should not be discounted in production
- Forums
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