[Introduction]ïŒE77-400M22S is based on ST's newly launched STM32WLE5CCU6 (ARM Cortex-M4 + LoRa) SoC wireless communication module. It has the characteristics of remote communication, low standby power consumption, strong anti-interference ability, rich interface resources, strong processing ability and small size.
[Introduction]ïŒE77-900M22S is based on ST's newly launched STM32WLE5CCU6 (ARM Cortex-M4 + LoRa) SoC wireless communication module. It has the characteristics of long communication distance, low standby power consumption, strong anti-interference ability, rich interface resources, strong processing ability and small size.
Brand Name:EBYTE
Origin:Mainland China
Condition:New
Type:Drive IC
Model Number:E77-400M22S/E77-900M22S
Package:SMD
E77-400M22SïŒ
RF Parameter | Value |
Remark |
Working frequency |
410~510 MHz |
Support ISM band |
Transmitting power | 0~21.5 dBm |
The software is adjustable, and users need to develop their own settings |
Receiving sensitivity | -118 dBm |
GFSKïŒair speed1.2kbps |
Reference distance(PCB/IPX) | 5600m |
 Clear and open environment, maximum power, antenna gain 3.5dBi, height 2m, airspeed 1.2kbps |
Hardware Parameter | Value |
Remark |
IC full name |
STM32WLE5CCU6 |
ââ |
core |
Cortex-M4 |
ââ |
FLASH |
256 KB |
ââ |
RAM |
64 KB |
ââ |
Crystal frequency |
32MHz/32.768KHz |
External crystal |
Size |
14 * 20 mm |
ââ |
Antenna type |
IPEX/stamp hole |
Equivalent Impedance Approx.50Ω |
Communication interface |
UARTăSPIăIÂČCăGPIOăADC |
Users need to develop their own settings |
Packaging |
Patch stamp hole |
ââ |
Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
voltage | 1.8 | 3.3 | 3.6 | V |
â„3.3V Guaranteed output power Exceeding 3.6V will permanently burn the module |
communication level |
- |
3.3 |
- | V |
Using 5.0V TTL is recommended to add level conversion |
Emission current |
- | 128 | - | mA | Instantaneous power consumption |
receive current | - | 14 |  - | mA | ââ |
sleep current | - | 3 | - | ÎŒA | software shutdown |
Operating temperatur |
-40 | 20 | 85 | â | - |
Working humidity |
10 | 60 | 90 | % | - |
Storage temperature |
-40 | 20 | 125 | â | - |
Â
ăATăLoRaWAN AT commands for STM32CubeWL
ăProduct applicationăAN-2022013_E77 Series LoRaWAN Demo Instruction Manual
ăDemoăE77 Series LoRaWAN Demo
Â
E77-900M22SïŒ
RF Parameter | Value |
Remark |
Working frequency |
850~930 MHz |
Support ISM band |
Transmitting power | 0~21.5 dBm |
The software is adjustable, and users need to develop their own settings |
Receiving sensitivity | -118 dBm |
GFSKïŒair speed1.2kbps |
Reference distance(PCB/IPX) | 5600m |
 Clear and open environment, maximum power, antenna gain 3.5dBi, height 2m, airspeed 1.2kbps |
Â
Hardware Parameter | Value |
Remark |
IC full name |
STM32WLE5CCU6 |
ââ |
core |
Cortex-M4 |
ââ |
FLASH |
256 KB |
ââ |
RAM |
64 KB |
ââ |
Crystal frequency |
32MHz/32.768KHz |
External crystal |
Size |
14 * 20 mm |
ââ |
Antenna type |
IPEX/stamp hole |
Equivalent Impedance Approx.50Ω |
Communication interface |
UARTăSPIăIÂČCăGPIOăADC |
Users need to develop their own settings |
Packaging |
Patch stamp hole |
ââ |
Â
Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
voltage | 1.8 | 3.3 | 3.6 | V |
â„3.3V Guaranteed output power Exceeding 3.6V will permanently burn the module |
communication level |
- |
3.3 |
- | V |
Using 5.0V TTL is recommended to add level conversion |
Emission current |
- | 128 | - | mA | Instantaneous power consumption |
receive current | - | 14 |  - | mA | ââ |
sleep current | - | 3 | - | ÎŒA | software shutdown |
Operating temperatur |
-40 | 20 | 85 | â | - |
Working humidity |
10 | 60 | 90 | % | - |
Storage temperature |
-40 | 20 | 125 | â | - |
Â