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WiFi Module
Ebyte WiFi Module Selection Guide
WiFi modules are integrated wireless communication devices based on IEEE 802.11 standard, integrating RF chipset, MCU, protocol stack and peripheral circuits. They support Station/AP working modes, WPA2/WPA3 encryption and UART/SDIO/USB data transmission.
Ebyte WiFi product line covers 8 major series, from cost-effective UART transparent transmission modules to high-performance dual-band, routing and MESH modules. They are widely used in smart home, industrial monitoring, security and OTA upgrade scenarios as the mainstream wireless networking solution for IoT devices.
How to Select WiFi Module?
| Screening Dimension | Recommended Series & Models |
|---|---|
| Frequency Band | • 2.4GHz single-band: Dual-mode WiFi, Cost-effective WiFi, E101 ESP32, Low-power WiFi, Router, WiFi MESH • 2.4GHz + 5.8GHz dual-band: Dual-band WiFi, High-performance WiFi, E101 ESP32 Series |
| Core Function | • Serial transparent transmission: Cost-effective WiFi, Dual-mode WiFi • High-speed data & video: High-performance WiFi, Dual-band WiFi • Low power battery operation: Low-power WiFi Series • Standalone routing function: WiFi Router Module Series • Large-area self-healing network: WiFi MESH Series |
| Interface Type | • UART serial port: Most embedded WiFi series • SDIO / USB high-speed: High-performance WiFi Series • Rich peripheral interfaces: Router Series, ESP32 Series |
| Transmission Distance | • Short range (100-120m): Entry-level cost-effective series • Medium range (200-400m): Dual-mode, Dual-band, Router series • Long range (400-500m): E101 ESP32 high-power series |
| Application Scenario | • Smart home & appliance: Cost-effective WiFi, Dual-mode WiFi+BLE • Industrial automation & monitoring: High-performance, Dual-band industrial series • Security camera & video: High-performance SDIO/USB series • Battery-powered sensors: Low-power WiFi Series • Large-area coverage: WiFi MESH, Router Series |
Full Series Parameter Comparison Table
| Product Series | Model Family | Chipset | WiFi Standard | TX Power | Range | Interface | Key Features |
|---|---|---|---|---|---|---|---|
| Dual-mode WiFi Series | WiFi+BLE Combo | Integrated combo SoC | 802.11b/g/n + BLE | Standard power | 120-400m | UART | WiFi + Bluetooth combo, TCP/UDP/MQTT, plug-and-play |
| Dual-band WiFi Series | CC3235S based | TI CC3235S | 802.11a/b/g/n 2.4G+5.8G | 18dBm | Medium range | UART / SPI | Industrial grade, dual-band concurrent, high reliability |
| High-performance WiFi Series | RTL88xx Series | Realtek RTL8812 / RTL8811 / RTL8189 | 802.11a/b/g/n/ac | Standard power | Standard range | SDIO / USB / UART | High throughput, up to 867Mbps, for video and AP applications |
| Cost-effective WiFi Series | ESP8266 / W600 based | ESP8266EX / ESP8285 / W600 | 802.11b/g/n 2.4GHz | Standard power | 100-400m | UART | Low cost, AT command transparent transmission, widely used in smart home |
| E101 ESP32 Series | E101 Series | ESP32-C3 / C5 / C6 / S3 | 802.11b/g/n 2.4G (some 5G) + BLE | Standard power | 200-500m | UART | Dual-core MCU, rich peripherals, WiFi+BLE combo, secondary development |
| Low-power WiFi Series | CC3200 / DA16200 based | TI CC3200 / CC3220R / Dialog DA16200 | 802.11b/g/n 2.4GHz | Up to 20dBm | Medium range | UART | Ultra-low sleep current, MQTT support, ideal for battery-powered sensors |
| WiFi Router Module Series | MT7688 / MT7628 Series | MediaTek MT7688AN / MT7628AN | 802.11b/g/n 2.4GHz | 20dBm | Medium range | Ethernet / UART / USB | OpenWrt system, standalone routing function, rich interfaces |
| WiFi MESH Series | E103-W07 | ESP-MESH SoC | 802.11b/g/n 2.4GHz | 20dBm | 100m per hop | UART | ESP-MESH protocol, self-healing network, large-area coverage |
* Communication range is tested in open-air line-of-sight environment. Actual throughput and range depend on antenna configuration, obstacles and environmental interference.
5-Point Quick Selection Guide
- Select frequency band by deployment environment. Choose 2.4GHz single-band for general indoor and long-range scenarios with better wall penetration; choose 2.4GHz+5.8GHz dual-band for high-speed, low-interference applications.
- Match interface to host system. For simple MCU serial connectivity, select standard UART transparent transmission modules; for high-speed video or AP applications, select SDIO or USB interface modules.
- Evaluate power consumption for battery devices. For battery-powered sensor nodes, select dedicated low-power WiFi series with deep sleep mode to extend battery life to months or years.
- Choose network architecture by coverage scale. Choose standard STA/AP modules for router-connected devices; choose MESH modules for large-area self-organizing networks without central router.
- Confirm secondary development requirements. Choose AT command plug-and-play modules for simple transparent transmission; choose ESP32 or OpenWrt router modules if you need to run custom application firmware.
Frequently Asked Questions
Q1: Can WiFi modules work without a router?
Yes. Most WiFi modules support AP (Access Point) mode, allowing other devices to connect directly to the module without an external router. They can also work in peer-to-peer mode for device-to-device direct communication.
Q2: What is the difference between 2.4GHz and 5.8GHz WiFi?
2.4GHz WiFi has longer range and better wall penetration but is more prone to interference. 5.8GHz WiFi offers higher data rates and less interference but has shorter range and weaker penetration through obstacles. Dual-band modules support both bands.
Q3: What is UART WiFi transparent transmission?
UART WiFi transparent transmission mode converts serial data directly into WiFi network packets bidirectionally, without requiring the host MCU to handle complex WiFi protocol stacks. Users only need to send and receive data via UART, making integration very simple.
Q4: Are low-power WiFi modules suitable for battery operation?
Yes. Dedicated low-power WiFi modules support deep sleep mode with microampere-level sleep current. By waking up periodically to send data, they can run on batteries for months to years, making them suitable for remote IoT sensors.
Ebyte E103-W05 WIFI Module W600 2.4G 100mW Consumption Wi-Fi to Serial Port Wireless Module with PCB Antenna
$1.52E103-W05 Ebyte Cheap WIFI Module W600 2.4G 100mW Low Power Consumption Wi-Fi to Serial Port Wireless Module with PCB Antenna [IC]：W600 [Frequency]：2.4~2.4835GHz [Power]：20dBm [Distance]：120m [Size]：19*13*2.5mm [Weight]：0.8±0.1g [Introduction]：E103-W05 is a cost-effective...
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