1. Bubuka
The EBYTE E22P Series LoRa Modules are high-performance wireless communication modules based on the SEMTECH SX1262 RF transceiver chip. These modules are designed for long-distance transmission with low power consumption, offering enhanced efficiency, faster speeds, and a compact size. They feature built-in PA (Power Amplifier), LNA (Low Noise Amplifier), SWA (Switching Amplifier), and ESD protection, making them suitable for various industrial and IoT applications requiring stable and anti-interference communication.
2. Fitur konci
- Chipset: SEMTECH SX1262 RF transceiver module.
- Pita frékuénsi: Available in 868MHz (E22P-868M30S) and 915MHz (E22P-915M30S) variants.
- Kinerja luhur: Utilizes new SX1262/SX1268 chips for full performance upgrade, offering higher efficiency, longer distance, faster speed, and smaller size.
- Long Communication Distance: Capable of up to 12km transmission distance under clear and open conditions with optimal antenna configuration.
- Stable and Anti-interference: Built-in RF front-end module, power ampliifier, noise low amplifier, surface acoustic wave filter, and ceramic filter improve out-of-band spurious suppression and anti-interference capabilities.
- High Precision Oscillator: Adopts a 32MHz high-precision active temperature-compensated crystal oscillator (TCXO) to ensure accurate and stable frequency across a wide temperature range (-40°C to +85°C).
- Kaluaran kakuatan: Up to 30dBm (approximately 1W) transmit power.
- panganteur: SPI (Serial Peripheral Interface).
- Perlindungan ESD: Integrated ESD protection design.
- Ukuran kompak: Dimensions of 38.5mm x 24mm, suitable for applications with high volume requirements.
- Pilihan Antenna: Supports IPEX and Stamp Holes for flexible antenna integration.
3. Varian produk
The E22P series offers modules optimized for different frequency bands:
- E22P-868M30S: Operates in the 868MHz frequency band.
- E22P-915M30S: Operates in the 915MHz frequency band.
Both variants share the same core features and dimensions, differing primarily in their operating frequency to comply with regional regulations and application requirements.
4. Spésifikasi
4.1. General Parameters
| Parameter utama | E22P-868M30S | E22P-915M30S |
|---|---|---|
| Pita frékuénsi operasi | 863.3-873.3 MHz | 902-928 MHz |
| Chip RF | SX1262 | |
| Frékuénsi Kristal | 32MHz (High-precision active temperature compensated crystal oscillator) | |
| Ngirimkeun Daya | 30dBm (Maximum power, about 1W) | |
| Jarak Komunikasi | 12000m (Max, with 5dBi antenna, 2m height) | |
| Antarbeungeut Komunikasi | SPI | |
| Laju hawa | 0.018-300kbps | |
| Pasokan Voltage (V) | 2.5-5.5V (DC 3.3-5.5V) | |
| Emission Current (mA) | 610 | 640 |
| Receiving Sensitivity (dBm) | -150 | |
| Jenis anteneu | IPEX / Stamp liang | |
| Beurat Produk (g) | 4.9 ± 0.1g | |
| Encapsulation Interface | Tambalan | |
| Saré Ayeuna | 3uA | |
4.2. Harti Pin
| Nomer séri | Ngaran Pin | Jenis Pin | Tujuan Pin |
|---|---|---|---|
| 1 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 2 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 3 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 4 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 5 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 6 | EN | Input | RF enable control pin, connected to external MCU IO, high level is valid |
| 7 | T/R CTRL | Input / Kaluaran | RF transmission and reception control pins, high level for transmission, low level for reception, connected to external microcontroller IO or DIO2 |
| 8 | DIO2 | Input / Kaluaran | Configurable general IO port |
| 9 | VCC | - | Power supply, range 3.3 ~ 5.5V (it is recommended to add external ceramic filter capacitor) |
| 10 | VCC | - | Power supply, range 3.3 ~ 5.5V (it is recommended to add external ceramic filter capacitor) |
| 11 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 12 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 13 | DIO1 | Input / Kaluaran | Configurable general IO port |
| 14 | SIBUK | Kaluaran | Used for status indication |
| 15 | Nrst | Input | Chip reset trigger input pin, low level is valid |
| 16 | Mano | Kaluaran | Pin kaluaran data SPI |
| 17 | Batu mosa | Input | Pin input data SPI |
| 18 | Scuk | Input | Pin input jam SPI |
| 19 | NSS | Input | Modul chip pilih pin, dipaké pikeun ngamimitian komunikasi SPI |
| 20 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
| 21 | SIreum | - | panganteur anteneu, stamp liang (50Ω impedansi karakteristik) |
| 22 | GND | - | Kawat taneuh, disambungkeun ka taneuh rujukan kakuatan |
4.3. RF Output Power Comparison
5. Setélan
5.1. Integrasi Modul
The E22P modules are designed for surface-mount (SMD) integration. Ensure proper soldering techniques are used to avoid damage. Connect the module to your microcontroller (MCU) using the SPI interface and relevant control pins as defined in Section 4.2.
5.2. Sambungan anteneu
The module supports both IPEX and stamp hole antenna interfaces. Choose an appropriate 50Ω antenna for your application and frequency band (868MHz or 915MHz). For optimal performance, ensure the antenna is positioned correctly and has a clear line of sight.
5.3. Power Supply
Provide a stable DC power supply within the range of 2.5V to 5.5V. It is highly recommended to add external ceramic filter capacitors to the VCC pins to ensure stable power delivery and minimize noise.
5.4. Offline Test Evaluation Kit (Optional)
For quick evaluation and testing, an Offline Test Evaluation Kit is available. This kit includes a pre-welded E22P module, glue stick antennas (868M/915M), 2*10PIN headers, and a Type-C adapter cable. It is recommended to order two pieces of the kit for easy sending and receiving tests.
6. Parentah Operasi
6.1. Basic Operation with Test Kit
If using the Offline Test Evaluation Kit:
- Connect the Type-C adapter cable to the kit and a power source (e.g., power bank or computer).
- The OLED display will show the current mode (e.g., Home, Setting, Tx Mode, Rx Mode, Version).
- Use the 'OK', 'UP', and 'DOWN' buttons to navigate menus and configure parameters. The 'Back' button (Buzzer) can be used to return to previous menus.
- The LED indicator provides visual feedback on module status.
- For data transmission tests, configure one kit as a transmitter and another as a receiver.
6.2. Data Transfer Example
When performing data transfer tests with two evaluation kits:
- Configure the number of times to send data on the transmitting module.
- The receiving module can display real-time data such as channel, rate, power, total transmissions (Tx Total), current receptions (Current), lost packets (Lost), and packet loss rate (Lost Pkt %).
6.3. Kamekaran Parangkat Lunak
The Offline Test Evaluation Kit includes an onboard master control STM32E103C8T6, which supports secondary development. Users can develop custom firmware to control the LoRa module and integrate it into their specific applications.
7. Pangropéa
- Perlindungan ESD: Always handle the module with proper electrostatic discharge (ESD) precautions to prevent damage to sensitive components.
- Kabersihan: Keep the module clean and free from dust, moisture, and corrosive substances.
- Suhu: Operate the module within its specified temperature range (-40°C to +85°C). Avoid extreme temperatures that can affect performance and longevity.
- Ruksakna Fisik: Avoid physical stress or impact to the module. Ensure proper mounting to prevent vibrations or accidental disconnections.
8. Cara ngungkulan
- Henteu aya komunikasi:
- Check all power connections (VCC, GND) and ensure they are stable and within the specified voltage rentang.
- Verify SPI connections (MISO, MOSI, SCK, NSS) are correct and securely attached.
- Ensure the EN pin is high for RF operation.
- Check the T/R CTRL pin for correct transmission/reception mode.
- Confirm antenna is properly connected and matched to the module's frequency. - Poor Range/Signal:
- Ensure antennas are correctly installed and have a clear line of sight.
- Check for environmental interference (e.g., other wireless devices, metal obstructions).
- Verify transmit power settings are at the desired level.
- Ensure both modules are operating on the same frequency and with compatible LoRa parameters (e.g., spreading factor, bandwidth). - Modul Teu Ngabales:
- Check the NRST pin. A low level on this pin will reset the chip.
- Verify the power supply is stable and sufficient. - Masalah parangkat lunak:
- Double-check your SPI communication code and register configurations.
- Refer to the SX1262 datasheet and EBYTE's documentation for detailed register maps and programming guides.
9. Tips pamaké
- Pilihan Antena: For maximum range, use a high-gain antenna (e.g., 5dBi) and position it as high as possible with minimal obstructions.
- Power Filtering: Always include ceramic filter capacitors on the VCC lines close to the module to ensure clean power and prevent noise from affecting RF performance.
- Pancegahan ESD: When handling the module, especially during installation or antenna connection, use an anti-static wrist strap and work on an ESD-safe surface.
- Uji coba: When setting up a new communication link, start with short distances and gradually increase the range while monitoring signal quality.
- Pangwangunan firmware: Leverage the STM32E103C8T6 on the evaluation kit for custom firmware development to tailor the module's behavior to your specific application needs.
10. Garansi jeung Rojongan
For detailed warranty information, technical support, and additional resources, please refer to the official EBYTE website or contact their customer service. Firmware updates and further documentation may also be available on the manufacturer's product page.
Ngundeur files: https://www.cdebyte.com/product_serch/E22P/1/