AS32-TTL-1W SX1278 433mhz 20dbm 10KM LoRa Wireless Module
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AS32-TTL-1W SX1278 433mhz 20dbm 10KM LoRa Wireless Module
Industrial long distance 10km SX1278 wireless transceiver module mini wireless serial control.
- 410-441MHz(default 433MHz), 1W, industrial-grade wireless data transmission module.
- LORA spread spectrum modulation, high anti-interference and long distance transmission(up to 10km).
- Easy Operation: four working modes and can be switched freely during application.
- Ultra Low Power: Ideal for low power applications,such as automobile detection,flow detection, screen control, etc.
Electronical Parameters
| No. | Parameters | Value and details |
|---|---|---|
| 1 | Module Size | 23 X 43mm (not including antenna or SMA junction) |
| 2 | Module Weight | 20g without an antenna |
| 3 | Production craft | Lead-free, electrostatic bag packaging |
| 4 | Interface mode | 1 X 7 X 2.54 mm, plug-in packaging, universal board , and DuPont line can be used |
| 5 | Operating frequency | 410 to 441MHz, factory default: 433.0MHz |
| 6 | Supply Voltage | 2.5V-5.5VDC, meet a variety of system requirements |
| 7 | Communication level | Maximum 5.2V |
| 8 | Measured distance (3.0VDC) | Up to 10km |
| 9 | Transmission power | Maximum 30dBm, about 1W, 4 levels adjustable (0-3) |
| 10 | Air rate | 6 levels adjustable (0.3, 1.2, 2.4, 4.8, 9.6, 19.2Kbps) |
| 11 | Sleep current | 1.5uA (MD1 =1, MD0 = 1) |
| 12 | Transmitting current | 520mA@1W (voltage 5V) |
| 13 | Receiving current | 18mA (mode 0, mode 1), minimum about 30uA (mode 2 + 2s wake-up) |
| 14 | Communication Interface | UART serial port, 8N1, 8E1, 8O1, from 1200 to 115200 |
| 15 | Driving means | UART serial port can be set to push-pull / pull-up, open-drain |
| 16 | Transmitting length | Internal ring FIFO cache 256 bytes |
| 17 | Receiving length | Internal ring FIFO cache 256 bytes |
| 18 | Module address | 65536 configurable addresses |
| 19 | RSSI support | Built-in intelligent processing |
| 20 | Receiving sensitivity | -130dbm at 2.4Kbps |
| 21 | Antenna type | SMA antenna / spring antenna |
| 22 | Operation temperature | -40°C to +85°C |
| 23 | Operation humidity | 10%-90% relative humidity, no condensation |
| 24 | Storage temperature | -40°C to +125°C |
Pin Specification
| Pin No. | Name | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | MD0 | Input (very weak pull up) | Cooperates with MD1 to decide 4 kinds of work modes, which cannot be floated |
| 2 | MD1 | Input (very weak pull up) | Cooperates with MD0 to decide 4 kinds of work modes, cannot be floated |
| 3 | RDX | Input | TTL UART inputs, connected to the external TXD output pin. It can be configured as open-drain or pull-up input, see parameter setting |
| 4 | TXD | Output | TTL UART outputs, connected to the external RXD input pin. It can be configured as open-drain or pull-up output, see parameter setting |
| 5 | AUX | Output | Used to indicate the working status of the module, the user wakes up the external MCU; during the initial power-on self-test period, it outputs low. It can be configured as an open-drain output, or push-pull output, see parameter settings |
| 6 | VCC | Power Input | Power input, power supply 2.5-5.5V (Note: if it is less than 4.5V, the output power will decline, but the impact on the reception performance is very small.) |
| 7 | GND | Ground | Ground line, connected to the power supply reference ground. |
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
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- Exchange Window: Up to 30 days from receipt.
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