• Beitian BG-146 LoRa DTU module, top label, side profile, and bottom pads shown (32-pin SMD)
  • Beitian BG-146 LoRa wireless module graphic showing baud rate 115200bps and frequency 470–510MHz
  • BG-146 LoRa module product features chart with size, TTL level, baud rate options, and recommended voltage
  • Application scenario graphic for BG-146 module with icons: drone, data transmission field, surveying, industrial machinery
  • Package contents list showing BG-146 series data transmission module x1
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Beitian BG-146 (BT-146) 433MHz LoRa DTU Module, TTL 32-Pin SMD Data Transceiver for Flight Control

Beitian BG-146 (BT-146) 433MHz LoRa DTU Module, TTL 32-Pin SMD Data Transceiver for Flight Control

Beitian

$17.90 USD
$17.90 USD
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Overview

The Beitian BG-146 (BT-146) is an SMD LoRa DTU wireless data transmission transceiver module with TTL level serial I/O and a 32-pin connector interface. It is intended for transparent serial data links in embedded systems such as drone flight control communication and other industrial telemetry scenarios. The module label reads: “Beitian BG-146 LoRa Module M2507156B1214”.

Note: the product name lists 433MHz, while the parameter table for this module shows an operating frequency of 470MHz-510MHz.

Key Features

  • LoRa modulation, LoRa protocol type
  • Half-duplex working mode
  • TTL level interface
  • Air data rate: 1.2kbps-62.5kbps
  • Serial baud rate options: 9600bps / 38400bps / 115200bps / 230400bps
  • Recommended input: DC 3.3V ±10%
  • Wide temperature ratings for operation and storage

Specifications

Model / Chip BT-146 / BG-146
Working mode Half-duplex
Operating frequency 470MHz-510MHz
Frequency stability ±1.5ppm
Modulation LoRa
Protocol type LoRa
Level TTL
Baud rate 115200bps
Baud rate in the air 1.2kbps-62.5kbps
Serial baud rate 9600bps / 38400bps / 115200bps / 230400bps
Voltage (recommended) 3.3V ±10%
Size 22*17*2.8mm
Weight 1.8g
Connector 32pin
Operating temperature -40°C ~ +85°C
Storage temperature -40°C ~ +105°C

Pin Definition (32-Pin)

Pin Name I/O Description
1 GND G Ground
2 ANT Connect the antenna
3 GND G Ground
4 RES I Fast reset, no clearing of user configurations
5 RES I Fast reset, no clearing of user configurations
6 GND G Ground
7 RES I Fast reset, no clearing of user configurations
8 RES I Fast reset, no clearing of user configurations
9 RES I Fast reset, no clearing of user configurations
10 RES I Fast reset, no clearing of user configurations
11 GND G Ground
12 RXD1 I LoRa data reception
13 TXD1 O LoRa data sending
14 RES I Fast reset, no clearing of user configurations
15 RSTN Reset the foot
16 GND G Ground
17 VCC I Mains power, DC input. 3.3V ±10% recommended
18 VCC I Mains power, DC input. 3.3V ±10% recommended
19 GND G Ground
20 GND G Ground
21 SYS_FLAG The status of sending and receiving data
22 T/RX_FLAG Transmit and receive mode status
23 GND G Ground
24 RXD2 I LoRa data reception
25 TXD2 O LoRa data sending
26 GND G Ground
27 RES I Fast reset, no clearing of user configurations
28 RES I Fast reset, no clearing of user configurations
29 GND G Ground
30 STA_FLAG1 dangling
31 STA_FLAG2 dangling
32 GND G Ground

Dimensions

  • Overall: 22.00 ± 0.2 mm x 17.00 ± 0.2 mm
  • Thickness: 2.8 ± 0.2 mm
  • Additional marked dimensions: 15.80 mm, 16.80 mm, 20.80 mm, 1.00 mm, 1.60 mm, 1.08 mm, 1.10 mm, 0.80 mm, 1.27 mm, 19.05 mm, 0.5 mm

For integration, wiring, or configuration support, contact support@rcdrone.top or visit https://rcdrone.top/.

Details

Beitian BG-146 (BT-146) LoRa DTU module datasheet page with specs table, 32‑pin pinout and dimensions

Parameter table, 32‑pin TTL pin definition, and mechanical dimensions for the Beitian BG‑146 (BT‑146) LoRa DTU module.

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