Home AS32-TTL-100 SX1278 433mhz 20dbm LoRa Wireless Module

AS32-TTL-100 SX1278 433mhz 20dbm LoRa Wireless Module

Sale price €7,80

📦 Location of the warehouse: China

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AS32-TTL-100 SX1278 433mhz 20dbm LoRa Wireless Module

AS32-TTL-100 SX1278 433mhz 20dbm LoRa Wireless Module

€7,80

AS32-TTL-100 is a 100 mW industrial-grade wireless data transmission module with high stability working on 433MHz frequency. The module uses an SX1278 main chip, LoRa spread spectrum transmission, and TTL level output, and it is compatible with 3.3V and 5V IO port voltage. LORA spread sptrum makes the module have a longer communication distance. AS32 operating frequency is 410MHz to 441MHz with a total of 32 channels.

Key Features

  • Interface: UART

  • Power: 20 dBm(100 mW)

  • Frequency: 433 MHz (410~441MHz)

  • RF connector: SMA

  • Distance: 3000 m

Specifications

No. Parameter Name Parameter Values Details
1 Module Size 23 X 43mm (not including antenna or SMA junction)
2 Source of the Devices All imported components from Japan, USA, Germany
3 Production Craft Lead-free, electrostatic bag packaging
4 Interface Mode 1 X 7 X 2.54 mm, plug-in packaging, compatible with universal boards and DuPont lines
5 Operating Frequency 410 to 441MHz, adjustable in 1MHz steps, factory default: 433.0MHz
6 Supply Voltage 2.5V-5.5VDC meets various system requirements (transmission power decreases if the voltage is below 3.6V)
7 Communication Level Maximum 5.2V, recommended voltage should be less than 0.3V below supply voltage to reduce power consumption
8 Measured Distance (3.0VDC) About 3000m under test conditions: sunny, open, maximum power, 5dBi antenna, 2m height, 2.4K air rate
9 Transmission Power Maximum 20dBm (about 100mW), adjustable in 4 levels (0-3), approximately 3dBm difference between each level
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 110mA@100mW (at 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, baud rates from 1200 to 115200, a total of 8 options
15 Driving Means UART serial port, settable to push-pull, pull-up, or open-drain
16 Transmitting Length Internal FIFO cache of 256 bytes, automatic packet segmentation, supports infinite-length packets under some setups
17 Receiving Length Internal FIFO cache of 256 bytes, automatic packet segmentation, supports infinite-length packets under some setups
18 Module Address 65536 configurable addresses, supports networking, broadcast, and fixed transmission modes
19 RSSI Support Built-in intelligent processing
20 Receiving Sensitivity -130dBm at 2.4Kbps (independent of serial port baud rate and delay time)
21 Antenna Type SMA antenna / Spring antenna
22 Operating Temperature -40℃ to +85℃
23 Operating Humidity 10%-90% relative humidity, non-condensing
24 Storage Temperature -40℃ to +125℃

 

Pin Definition

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 RXD 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 and can be configured as an open-drain output, or push-pull output, see parameter settings.
6 VCC   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 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.

  

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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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