1. Okwu mmalite
The EBYTE E220-400M30S is a high-performance LoRa wireless module designed for long-range data transmission. Based on the original Semtech LLCC68 chip, this module operates in the 433/470MHz global license-free ISM band, offering excellent anti-interference capabilities, longer transmission distance, and stable communication. It features a maximum transmit power of 30dBm and a reference distance of up to 10km in clear, open areas.


The module supports both LoRa and FSK modes, providing flexibility for various applications such as smart home systems, intelligent control, wireless control, and wireless data transmission. Its compact SMD package and optional dual antenna interfaces (IPEX and stamp hole) make it easy to integrate into diverse projects.
2. Atụmatụ igodo
- Chipset: Original Semtech LLCC68
- Ugboro arụ ọrụ: 433/470MHz (ISM band, 410~493MHz range)
- Nyefee Ike: Oke 30dBm
- Ogologo nzikọrịta ozi: Up to 10km (clear and open area, antenna height 2.5m, air data rate 2.4kbps)
- Ọnụego mbufe data:
- LoRa mode: 1.76k ~ 62.5kbps
- FSK mode: 0.6k ~ 300kbps
- Nhọrọ antenna: IPEX antenna interface or built-in stamp hole antenna
- Ihuenyo: SPI
- ngwugwu: SMD
- Nrụ ọrụ Voltage: 3.0V - 5.5V (typical 5V)
- Okpomọkụ arụ ọrụ: -40℃ to +85℃ (Industrial grade)
- FIFO Storage: Built-in 256Byte data buffer
- RF Shielding: Professional alloy shield for anti-interference and anti-static



3. Nkọwapụta
3.1. Limit Parameters
| Oke | Min. | Oke. | Okwu |
|---|---|---|---|
| Ịnye ọkụ voltage (V) | 0 | 5.5 | Ike karịrị 5.5V ga-emebi modul ahụ |
| Ike igbochi (dBm) | - | 10 | Ihe gbasara ike nke ọkụ na nso nso |
| Okpomọkụ na-arụ ọrụ (℃) | -40 | +85 | Ụlọ ọrụ mmepụta ihe |
3.2. Oke arụ ọrụ
| Oke | Min. | Ụdị. | Oke. | Okwu |
|---|---|---|---|---|
| Vol -arụ ọrụ Voltage (V) | 3 | 5 | 5.5 | ≥5V na-emesi ike mmepụta |
| Communication Level (V) | - | 3.3 | - | Iji 5V TTL dị ize ndụ ọkụ |
| Okpomọkụ na-arụ ọrụ (℃) | -40 | - | 85 | Nhazi mmepụta ihe |
| Ugboro ugboro na -arụ ọrụ (MHz) | 410 | 433/470 | 493 | Kwado eriri ugboro ISM |
| Transmitting Current (mA) | - | 600 | - | Oriri ike ozugbo |
| Receiving Current (mA) | - | 12.5 | - | - |
| Sleep Current (µA) | - | 1 | - | Agbanyụrụ ngwa ngwa |
| Max TX Power (dBm) | 29 | 30 | 31 | - |
| Receiving Sensitivity (dBm) | - | -129 | - | - |
| Air Data Rate (bps) | 1.76k | - | 62.5k | Controlled via user's programming |
| Oke ntụaka | 10km | Clear and open area, antenna height: 2.5m, air data rate 2.4kbps | ||
| FIFO | 256Byte | Ogologo kacha elu nke otu nnyefe | ||
| Frequency Crystal | 32Mhz | - | ||
| Mgbanwe | LoRa | A na-atụ aro mgbanwe LoRa | ||
| ngwugwu | SMD | - | ||
| Ụdị interface | Stamp oghere | Ogologo ya bụ 2.54 mm | ||
| Interface nkwurịta okwu | SPI | 0-10Mbps | ||
| Nha | 38.5*24mm | Gụnyere ọta | ||
| Okwu RF | IPEX/Stamp oghere | - | ||

4. Ntọala na nwụnye
4.1. Module Integration
The E220-400M30S module comes in an SMD (Surface Mount Device) package, designed for integration onto a PCB. Ensure proper soldering techniques are used to avoid damage to the module. The module's pins are spaced at 2.54mm for easy connection.
4.2. Ike inye
Provide a stable power supply between 3.0V and 5.5V. A typical operating voltage of 5V is recommended to ensure optimal output power. Using a 5V TTL communication level is risky and may damage the module; ensure your communication level matches the module's 3.3V.
4.3. Antenna Selection
The module offers two antenna options:
- IPEX Antenna Interface: For connecting an external antenna. This is suitable for applications requiring increased transmission distance.
- Stamp Hole Antenna: A built-in antenna option, easier to integrate and suitable for most general requirements.
Note: Only one antenna type can be selected and used at a time.

4.4. Nkwurịta okwu Interface
The module uses an SPI (Serial Peripheral Interface) for communication. Ensure your host microcontroller is configured to communicate via SPI at speeds between 0-10Mbps.
5. Ọrụ
5.1. Data Transmission and Reception
The E220-400M30S module facilitates wireless data communication using LoRa spread spectrum technology. This technology provides robust anti-interference capabilities and ensures stable communication over long distances.

5.2. Transmit Power Adjustment
The module allows for adjustment of the transmit power, with a maximum output of 30dBm. This enables optimization of range and power consumption based on application requirements.

5.3. Mmemme
The module's air data rate and other operational parameters are controlled via user programming through the SPI interface. Refer to the detailed user manual PDF for specific register configurations and programming examples.
6. Nlekọta
- Ijikwa: Always handle the module with care, preferably using anti-static precautions, to prevent damage from electrostatic discharge.
- gburugburu: Operate the module within the specified industrial temperature range of -40℃ to +85℃. Avoid exposure to extreme temperatures, humidity, or corrosive environments.
- Nhicha: If necessary, clean the module gently with a dry, soft cloth. Do not use liquids or harsh chemicals.
- Ọta RF: The module is equipped with a professional RF shield to protect against external electromagnetic interference. Do not attempt to remove or modify this shield.

7. Nchọpụta nsogbu
- Enweghị nkwukọrịta:
- Verify power supply voltage dị n'ime 3.0V-5.5V.
- Check all SPI connections (NSS, SCK, MOSI, MISO) for proper wiring.
- Ensure communication level is 3.3V; 5V TTL can damage the module.
- Confirm your microcontroller's SPI configuration matches the module's requirements. - Poor Range/Signal:
- Ensure an appropriate antenna is connected and properly installed (either IPEX external or built-in stamp hole).
- Check for obstructions between transmitting and receiving modules.
- Verify transmit power settings in your programming.
- Ensure the operating environment is free from excessive electromagnetic interference. - Ịkpọ oke ọkụ na modulu:
- Lelee ọkụ ọkụ voltage; excessive voltage can cause overheating.
- Ensure adequate ventilation if the module is enclosed. - Modulu Anaghị aza:
- Try resetting the module via the NRST pin.
- Re-check all power and ground connections.
8. Ndụmọdụ onye ọrụ
- Nkwalite nke antenna: For maximum range, especially in outdoor or challenging environments, consider using an external IPEX antenna with appropriate gain.
- Oriri ike: Utilize the module's sleep mode (1µA sleep current) in battery-powered applications to conserve energy when not actively transmitting or receiving.
- Njikwa nnyonye anya: While LoRa offers good anti-interference, proper grounding and shielding of your PCB design can further enhance performance in noisy electrical environments.
- Firmware Development: Start with simple transmit/receive examples provided by EBYTE or the LLCC68 chip manufacturer to quickly get your application running.
9. Akwụkwọ ikike na nkwado
For detailed technical support, additional documentation, and warranty information, please refer to the official EBYTE resources. The comprehensive user manual PDF can be downloaded from the manufacturer's websaịtị:
For PCB design files, you can find them here:
EBYTE is committed to providing reliable products and support for their wireless communication modules.





