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E78-400M22S1A

[IC]：ASR6505

[Frequency]：410~490MHz

[Power]：21dBm

[Distance]：5.5km

[Size]：26* 16*2.8mm

[Introduction] ：E78 series are RF transceiver module of various frequency bands designed and manufactured by Chengdu Ebyte, with long communication distance and extremely low power mode current consumption. It is a small-sized SMD type (pin pitch 1.1mm).

Manual
Sample
Outline features
Specification Parameters Pin Definition Order way Related Products

EN-E78-400M22S1A_01

EN-E78-400M22S1A_02

EN-E78-400M22S1A_03

EN-E78-400M22S1A_04

EN-E78-400M22S1A_05

EN-E78-400M22S1A_06

EN-E78-400M22S1A_08


RF ParameterValue
Remark
Working frequency
410~490 MHz

-

Transmitting power21 dBm

-

Test distance5.5Km

Lora 1kbps


Hardware Parameter
Value
Remark
Size
26* 16*2.8  mm

-

Antenna typeStamp hole/IPEX

-

IC
ASR6505

-

PackageSMD

-


Electronic parameterMin.Typ.Max.Unit
Transmitting current(LoRa@2.4kbps)
10011012mA
Receiving current(LoRa@2.4kbps)
13
1415mA
Shutdown current
1.622.6uA
Transmit power
20.620.821dBm
Receiving sensitivity
-139-140-140dBm
TCXO crystal
323232MHz
TCXO crystal voltage configuration
1.8
2.23.0V
Recommended operating frequency
410433/470/490
490MHz
Power supply voltage
2.63.33.7V
Communication level
2.63.33.7V

E78-400M22S1A-size

No.
NameDirectionFunction
1GND
-

Ground wire, connected to the power reference ground

2LCD-SEG10
Input/output

MCU GPIO

3LCD-SEG11
Input/output

MCU GPIO

4LCD-SEG12
Input/output

MCU GPIO

5LCD-SEG13
Input/output

MCU GPIO

6LCD-SEG14
Input/output

MCU GPIO

7LCD-SEG15
Input/output

MCU GPIO

8LCD-SEG16
Input/output

MCU GPIO

9LCD-SEG17
Input/output

MCU GPIO

10I2C-SDA
Input/output

I2C-SDApin

11I2C-SCL
Input/output

I2C-SCL pin

12ADC-IN0
Input

  ADC input pin

13ADC-IN1
Input

ADC input pin

14GPIO2
Input/output

MCU GPIO

15GPIO3
Input/output

MCU GPIO

16GPIO4
Input/output

MCU GPIO

17ADC_IN2
Input

ADC input pin

18GND
-

Ground wire, connected to the power reference ground

19ANT
output

Antenna interface, stamp hole (50 ohm characteristic impedance)

20~23GND
-

Ground wire, connected to the power reference ground

24SPI-NSS
Input

SPI select pin, can select external SPI

25SPI-SCK
Input

SPI-SCK pin, can be used as external SPI

26SPI_MISO
output

SPI_MISO pin, can be used as external SPI

27SPI_MOSI
Input

SPI MOSI pin, can be used as external SPI

28LCD-SEG1
-

MCU GPIO

29LCD-SEG2
Input/output

MCU GPIO

30SWIM
Input/output

Program burning pin

31NRST
Input

External reset pin

32LCD-COM0
Input/output

MCU GPIO

33LCD-COM1
Input/output

MCU GPIO

34LCD-COM2
Input/output

MCU GPIO

35VREFP
Input

ADC reference voltage input

36UART1-RX
Input

UART1-RX pin

37UART1-TX
output

UART1-TX pin

38VLCD
Input

VLCD pin

39LCD-SEG0
Input/output

MCU GPIO

40GND
-

Ground wire, connected to the power reference ground

41LCD-SEG3
Input/output

MCU GPIO

42LCD-COM3
Input/output

MCU GPIO

43LCD-SEG4
Input/output

MCU GPIO

44LCD-SEG5
Input/output

MCU GPIO

45UART0-RX
Input

UART0-RX pin

46UART0-TX
output

UART0-TX pin

47LCD-SEG6
Input/output

MCU GPIO

48LCD-SEG7
Input/output

MCU GPIO

49LCD-SEG8
Input/output

MCU GPIO

50LCD-SEG9
Input/output

MCU GPIO

51VCC
-

Power supply, range 2.5V ~ 3.7V (recommended to add external ceramic filter capacitor)

52GND
-

Ground wire, connected to the power reference ground

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ModelInterface IC Frequency
Hz
Power
dBm 		Distance
km 		Air
Rate(bps) 		Package Size
(mm) 		Feature ManualSample
E78-868LN22S(6601) SoC ASR6601 868M 22 5.6 0.018~62.5k SMD 14*20 standard LoRaWan node module
E78-470LN22S(6601) SoC ASR6601 470M 21 5.6 0.018~62.5k SMD 14*20 LoRa SoC RF Module
E78-900TBL-01A USB ASR6505 850~925M - 5.5 - - 70*36 E78 series module test board
E78-400M22S1C SoC ASR6601 470M 433M 21 5.5 - SMD 26*16*2.8 LoRa Spread Spectrum
E78-400TBL-01 USB - - - - - - 58*28 E78 series module test board
E78-400M22S1A - ASR6505 470M 433M 21 5.5 - SMD 26* 16*2.8 LoRaWan node module
E78-868LN22S - ASR6501 900MHz 21 - - SMD 20* 14*2.8 LoRa RF Module，Wireless Module
E78-470LN22S - ASR6501 433M 22 7 0.018k~62.5k SMD 14*20 Low consumption, anti-interference
  • E78-868LN22S(6601)

    Product model：E78-868LN22S(6601)

    Interface : SoC

    IC : ASR6601

    Frequency Hz : 868M

    Power dBm : 22

    Distance km : 5.6

    Air Rate(bps) : 0.018~62.5k

    Package : SMD

    Size (mm) : 14*20

    Feature : standard LoRaWan node module

    PDF ：

    BUY：

  • E78-470LN22S(6601)

    Product model：E78-470LN22S(6601)

    Interface : SoC

    IC : ASR6601

    Frequency Hz : 470M

    Power dBm : 21

    Distance km : 5.6

    Air Rate(bps) : 0.018~62.5k

    Package : SMD

    Size (mm) : 14*20

    Feature : LoRa SoC RF Module

    PDF ：

    BUY：

  • E78-900TBL-01A

    Product model：E78-900TBL-01A

    Interface : USB

    IC : ASR6505

    Frequency Hz : 850~925M

    Power dBm : -

    Distance km : 5.5

    Air Rate(bps) : -

    Package : -

    Size (mm) : 70*36

    Feature : E78 series module test board

    PDF ：

    BUY：

  • E78-400M22S1C

    Product model：E78-400M22S1C

    Interface : SoC

    IC : ASR6601

    Frequency Hz : 470M 433M

    Power dBm : 21

    Distance km : 5.5

    Air Rate(bps) : -

    Package : SMD

    Size (mm) : 26*16*2.8

    Feature : LoRa Spread Spectrum

    PDF ：

    BUY：

  • E78-400TBL-01

    Product model：E78-400TBL-01

    Interface : USB

    IC : -

    Frequency Hz : -

    Power dBm : -

    Distance km : -

    Air Rate(bps) : -

    Package : -

    Size (mm) : 58*28

    Feature : E78 series module test board

    PDF ：

    BUY：

  • E78-400M22S1A

    Product model：E78-400M22S1A

    Interface : -

    IC : ASR6505

    Frequency Hz : 470M 433M

    Power dBm : 21

    Distance km : 5.5

    Air Rate(bps) : -

    Package : SMD

    Size (mm) : 26* 16*2.8

    Feature : LoRaWan node module

    PDF ：

    BUY：

  • E78-868LN22S

    Product model：E78-868LN22S

    Interface : -

    IC : ASR6501

    Frequency Hz : 900MHz

    Power dBm : 21

    Distance km : -

    Air Rate(bps) : -

    Package : SMD

    Size (mm) : 20* 14*2.8

    Feature : LoRa RF Module，Wireless Module

    PDF ：

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  • E78-470LN22S

    Product model：E78-470LN22S

    Interface : -

    IC : ASR6501

    Frequency Hz : 433M

    Power dBm : 22

    Distance km : 7

    Air Rate(bps) : 0.018k~62.5k

    Package : SMD

    Size (mm) : 14*20

    Feature : Low consumption, anti-interference

    PDF ：

    BUY：