VIP member
E32-868T20D
Product Introduction: A wireless transparent transmission module (transceiver integrated) based on SEMTECH SX1276, using advanced LoRa spread spectrum
Product details
| RF parameters | Parameter values |
notes |
| Working frequency band |
862~893 MHz |
Factory default 868MHz |
| Transmission power | 10~20 dBm |
Factory default 20dBm (approximately 100mW) |
| receiver sensitivity | -146 dBm |
Airspeed 0.3kbps |
| air rate | 0.3k~19.2kbps |
Factory default 2.4kbps |
| measured distance | 3000 meters |
Clear and open environment, maximum power, antenna gain 5dBi, height 2m, airspeed 2.4kbps |
| Hardware parameters | Parameter values |
notes |
| Size |
21 * 36 mm |
Excluding SMA |
| antenna form | SMA-K |
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| communication interface | UART serial port |
The baud rate supports 1200~115200, with a factory default of 9600 |
| Packaging method | Direct insertion |
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| Cache capacity | 512 bytes |
Internal automatic 58 byte packet sending |
| Electrical parameters | minimum value | Typical values | Maximum value | unit | condition |
| supply voltage |
2.3 | 5.0 | 5.2 | V | |
| Communication level | 2.5 | 3.3 | 3.6 | V | |
| Emission Current | 110 | 120 | 130 | mA |
20dBm（100mW） |
| Receiving Current | 13 |
14 | 15 |
mA |
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| Sleep current | 3 |
4 | 5 | μA | |
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operation temperature |
-40 | 20 |
+85 | ℃ | |
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Working humidity |
10 | 60 |
90 | % | |
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storage temperature |
-40 | 20 |
+125 | ℃ |
| Serial Number |
Pin | Pin direction |
notes |
| 1 | M0 |
Input (extremely weak pull-up) |
Cooperate with M1 to determine the working mode of the module (cannot be suspended, can be grounded if not used) |
| 2 | M1 |
Input (extremely weak pull-up)） |
Cooperate with M0 to determine the working mode of the module (cannot be suspended, if not used, can be grounded)） |
| 3 | RXD |
input |
TTL serial input, connected to external TXD pin (can be configured as open drain or pull-up input, see manual for details) |
| 4 | TXD |
output |
TTL serial output, connected to external devicesRXD pin (configurable as open drain or push-pull output, see manual for details)） |
| 5 | AUX |
output |
Indicate the working status of the module, wake up the MCU externally by the user, and output a low level during the power on self-test initialization period |
| 6 | VCC | output | Module power supply reference |
| 7 | GND | output | Module ground wire |
| 8 | Fixing hole |
Fixed hole |
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| 9 |
Fixing hole |
Fixed hole |
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| 10 |
Fixing hole |
Fixed hole |
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Product manual |
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Development testing |
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Tool software |
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Introduction to Yibaite |
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Online purchase |
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Official Taobao: |
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JD.com: |
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Tmall Flagship Store: |
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【To ZheYibaite Exclusive Store: |
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Alibaba: |
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Bulk procurement/customized products |
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【 Sales Hotline 】: 7x24 hour sales service hotline |
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[Contact email]: sales@cdebyte.com |
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Technical Consultation |
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Online submission: |
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[Contact email]:support@cdebyte.com |
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technologyapplication |
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Frequently Asked Questions |
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★Question:Using default parameters, with a requirement of over 4km, the customer has 12 modules with 5V power supply in open suburban areas, with a rated power output of 2A. The transmitting end is a suction cup antenna, and the receiving end is a rubber rod antenna, located 1.5-2 meters above the ground. The maximum power ripple is ± 15mv in multiple environmental tests, and it does not exceed 2km in all cases. Please help analyze how to increase the distance. Is there anything else that needs to be noted |
| Answer:If there is no adsorption, it is recommended to adsorb; There are two options: 1. Replace the transmitting antenna with TX433-XPH-300, 2. Try replacing the receiving antenna with TX433-JK-20, while the suction cup is attached to the iron sheet. |
| ★ Question: What's the reason why address configuration cannot include F, such as 15/31? |
| Answer:Fixed point mode, channel 1, addresses 15 or 31 or hexadecimal addresses with F can communicate. |
| ★Question:I used the matching tool software "RF Setting" to set the parameters of the module, but it has not been successful. The power has been added and the baud rate is 9600, 8N1. I am setting it in sleep mode (M0 and M1 are directly connected to 3.3V). Is there anything else I need to pay attention to? |
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Answer:Is the module and computer connected through our E15-USB-T2? If not, determine if USB to TTL conversion is good. The detection method is very simple. Short circuit the serial port RXTX, and the serial assistant will send data to see if the same data can be received; If the adapter board is ready, please confirm the RX TX. |
| ★ Question:Use mode 0, connect two USB adapters to the computer, and both parties can send and receive data; Connect one of them to my motherboard and send the protocol code, but there is no response. Communication is normal using the 485 port on my motherboard. |
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Answer:Check if the wireless module sends data, one connected to the device and the other connected to the computer device. Can the computer receive the data. |
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★Question:Module testing, one end is connected to a computer and the other end is connected to a microcontroller. The microcontroller can receive data from the computer end, but the microcontroller cannot receive data from the computer end. What is the reason for this? Both ends are |
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Answer:What microcontroller is being used? Try connecting a resistor of around 500 ohms in series with TX.RX. |
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★Question:Test a pair of modules, with one end connected to the computer and the other end connected to the STM32F103ZET6 microcontroller. The module connected to the microcontroller can receive data when sending data to the module connected to the computer, but the module connected to the computer cannot receive data when sending data to the module connected to the microcontroller. What is the reason for this? It is using transparent transmission mode. |
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Answer:1. Ensure correct operation and module parameter settings; 2. Ensure that our module can function properly; 3. Add 4-10K pull-up resistors to the TXD and AUX pins of the module, and then test. |
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★Question:Connect the microcontroller for testing. M0 and M1 are connected to high levels. After the module is powered on and initialized, AUX keeps outputting low levels and cannot read parameters. What is the reason for this? |
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Answer:1. Ensure that our module is problem free and conduct a separate test to see if the module is functioning properly; 2. What microcontroller to use? Some 5V microcontrollers may require 4-10K pull-up resistors to be added to the TXD and AUX pins of the module. |
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★Question:What is the networking solution for wireless serial ports? |
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Answer:Recommend using polling networking. |
| product model |
interface type | Chip Solution | Carrier frequency Hz | Transmission power dBm | Test distance in kilometers | air rate bps |
Packaging form | Product size mm | Product Features | technology manual |
sample buy |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UART | SX1276 | 868M | 20 | 3 | 0.3k~19.2k | Patch | 16 * 26 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1276 | 915M | 20 | 3 | 0.3k~19.2k | Patch | 16 * 26 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M 470M | 20 | 3 | 0.3k~19.2k | Patch | 16 * 26 | LoRa spread spectrum, specially developed for meter reading | |||
| UART | SX1276 | 915M | 30 | 8 | 0.3k~19.2k | Patch | 25 * 40.3 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1276 | 868M | 30 | 8 | 0.3k~19.2k | Patch | 25*40.3 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M | 30 | 8 | 0.3k~19.2k | Patch | 25 * 40.3 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1278 | 433M | 37 | 20 | 0.3k~19.2k | Pressure line/DB9 | 105*104*25.5 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | Patch | 17 * 30 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1276 | 868M | 30 | 8.0 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1276 | 915M | 30 | 8.0 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1276 | 868M | 30 | 8.0 | 0.3~19.2k | Direct insertion | 24 * 43 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1276 | 915M | 30 | 8.0 | 0.3~19.2k | Direct insertion | 24 * 43 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1278 | 170M | 30 | 8 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | Wall King, LoRa Spread Spectrum Anti Interference | |||
| UART | SX1278 | 170M | 30 | 8.0 | 0.3k~9.6k | Direct insertion | 24 * 43 | Wall King, LoRa Spread Spectrum Anti Interference | |||
| RS232 RS485 | SX1276 | 868M | 20 | 3 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1276 | 915M | 20 | 3 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1278 | 433M | 30 | 8.0 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1278 | 433M | 27 | 5.0 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| RS232 RS485 | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | Pressure line/DB9 | 82*62*25 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1276 | 868M | 20 | 3.0 | 0.3~19.2k | Direct insertion | 21 * 36 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1276 | 915M | 20 | 3.0 | 0.3~19.2k | Direct insertion | 21*36 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M | 20 | 3 | 0.3k~19.2k | Direct insertion | 21 * 36 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M | 30 | 8 | 0.3k~19.2k | Direct insertion | 24 * 43 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M | 27 | 5.0 | 0.3k~19.2k | Direct insertion | 24 * 43 | LoRa spread spectrum, long-range anti-interference | |||
| UART | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | Patch | 17 * 25.5 | LoRa spread spectrum, long-range anti-interference |
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E32-868T20S
Product model: E32-868T20S
interface type
:UART
Chip Solution
:SX1276
Carrier frequency Hz
:868M
Transmission power dBm
:20
Test distance in kilometers
:3
Air speed bps
-
:0.3k~19.2k
Packaging form
: Surface mount
Product size mm
:16 * 26
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
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E32-915T20S
Product model: E32-915T20S
interface type
:UART
Chip Solution
-
:SX1276
Carrier frequency Hz
:915M
Transmission power dBm
:20
Test distance in kilometers
:3
Air speed bps
:0.3k~19.2k
Packaging form
: Surface mount
Product size mm
:16 * 26
-
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
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E32-400T20S
Product model: E32-400T20S
interface type
:UART
Chip Solution
:SX1278
Carrier frequency Hz
:433M 470M
Transmission power dBm
:20
-
Test distance in kilometers
:3
Air speed bps
:0.3k~19.2k
Packaging form
: Surface mount
Product size mm
:16 * 26
Product features: LoRa spread spectrum, specially developed for meter reading
PDF ：
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E32-915T30S
Product model: E32-915T30S
-
interface type
:UART
Chip Solution
:SX1276
Carrier frequency Hz
:915M
Transmission power dBm
:30
Test distance in kilometers
:8
Air speed bps
:0.3k~19.2k
Packaging form
-
: Surface mount
Product size mm
:25 * 40.3
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-868T30S
Product model: E32-868T30S
interface type
:UART
Chip Solution
:SX1276
Carrier frequency Hz
-
:868M
Transmission power dBm
:30
Test distance in kilometers
:8
Air speed bps
:0.3k~19.2k
Packaging form
: Surface mount
Product size mm
:25*40.3
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
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buy
E32-433T30S
Product model: E32-433T30S
interface type
:UART
Chip Solution
:SX1278
Carrier frequency Hz
:433M
Transmission power dBm
:30
Test distance in kilometers
:8
-
Air speed bps
:0.3k~19.2k
Packaging form
: Surface mount
Product size mm
:25 * 40.3
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-DTU (433L37)
Product model: E32-DTU (433L37)
interface type
:RS232 RS485
-
Chip Solution
:SX1278
Carrier frequency Hz
:433M
Transmission power dBm
:37
Test distance in kilometers
:20
Air speed bps
:0.3k~19.2k
Packaging form
: Pressure line/DB9
Product size mm
-
:105*104*25.5
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
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E32-433T20S2T
Product model: E32-433T20S2T
interface type
:UART
Chip Solution
:SX1278
Carrier frequency Hz
:433M
Transmission power dBm
-
:20
Test distance in kilometers
:3.0
Air speed bps
:0.3k~19.2k
Packaging form
: Surface mount
Product size mm
:17 * 30
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-DTU (868L30)
-
Product model: E32-DTU (868L30)
interface type
:RS232 RS485
Chip Solution
:SX1276
Carrier frequency Hz
:868M
Transmission power dBm
:30
Test distance in kilometers
:8.0
Air speed bps
:0.3k~19.2k
-
Packaging form
: Pressure line/DB9
Product size mm
:82*62*25
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-DTU (915L30)
Product model: E32-DTU (915L30)
interface type
:RS232 RS485
Chip Solution
:SX1276
-
Carrier frequency Hz
:915M
Transmission power dBm
:30
Test distance in kilometers
:8.0
Air speed bps
:0.3k~19.2k
Packaging form
: Pressure line/DB9
Product size mm
:82*62*25
Product features: LoRa spread spectrum, long-range anti-interference
-
PDF ：
buy
E32-868T30D
Product model: E32-868T30D
interface type
:UART
Chip Solution
:SX1276
Carrier frequency Hz
:868M
Transmission power dBm
:30
Test distance in kilometers
-
:8.0
Air speed bps
:0.3~19.2k
Packaging form
: Direct insertion
Product size mm
:24 * 43
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-915T30D
Product model: E32-915T30D
interface type
-
:UART
Chip Solution
:SX1276
Carrier frequency Hz
:915M
Transmission power dBm
:30
Test distance in kilometers
:8.0
Air speed bps
:0.3~19.2k
Packaging form
: Direct insertion
-
Product size mm
:24 * 43
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-DTU (170L30)
Product model: E32-DTU (170L30)
interface type
:RS232 RS485
Chip Solution
:SX1278
Carrier frequency Hz
:170M
-
Transmission power dBm
:30
Test distance in kilometers
:8
Air speed bps
:0.3k~19.2k
Packaging form
: Pressure line/DB9
Product size mm
:82*62*25
Product Features: Wall Penetrating King, LoRa Spread Spectrum Anti Interference
PDF ：
buy
-
E32-170T30D
Product model: E32-170T30D
interface type
:UART
Chip Solution
:SX1278
Carrier frequency Hz
:170M
Transmission power dBm
:30
Test distance in kilometers
:8.0
Air speed bps
-
:0.3k~9.6k
Packaging form
: Direct insertion
Product size mm
:24 * 43
Product Features: Wall Penetrating King, LoRa Spread Spectrum Anti Interference
PDF ：
buy
E32-DTU (868L20)
Product model: E32-DTU (868L20)
interface type
:RS232 RS485
Chip Solution
-
:SX1276
Carrier frequency Hz
:868M
Transmission power dBm
:20
Test distance in kilometers
:3
Air speed bps
:0.3k~19.2k
Packaging form
: Pressure line/DB9
Product size mm
:82*62*25
-
Product features: LoRa spread spectrum, long-range anti-interference
PDF ：
buy
E32-DTU (915L20)
Product model: E32-DTU (915L20)
interface type
:RS232 RS485
Chip Solution
:SX1276
Carrier frequency Hz
:915M
Transmission power dBm
:20
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