Chengdu Ebyte Electronic Technology Co.,Ltd.
E104-BT40 User Manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
2-4
2. Specification and Parameter
2.1 Limit parameter
Main Parameter
Performance
Note
Min
Max
Voltage supply [V]
0
3.6
Voltage over 3.6V will cause permanent damage
to module
Blocking power [dBm]
-
10
Chances of burn is slim when modules are used
in short distance
Operating temperature [
℃
]
-40
+85
Industrial grade
2.2 Operating parameter
Main parameter
Performance
Note
Min
Typ
Max
Operating voltage[V]
2.5
3.3
3.6
≥3.3 V ensures output power
Communication level [V]
-
3.3
-
For 5V TTL, it may be at risk of burning
down
Operating temperature [
℃
]
-40
-
+85
Frequency [MHz]
2400
-
2480
Power
consumption
Idle state
（
mA
）
3.9
-
6
BLE connection
（
mA
）
-
3.26
9.2
SPP connection
（
mA
）
-
6.78
9.2
Transmitting power [dBm]
-
3
-
Receiving sensitivity [dBm]
-
-96
-97
Main parameter
Description
Note
Reference distance
30m
Transmission length
SPP 100Bytes
BLE 20Bytes
SPP payload 100 bytes
BLE payload 20 bytes
Bluetooth protocol
V4.2+V3.0 SPP
Communication interface
UART
All I / Os of the microcontroller are exported, see the chip manual
for details
Package
SMD
Connector
1.27mm
Size
21*13mm
Antenna
PCB
50Ω Impedance
