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E104-BT40 Ebyte serial to dual-mode bluetooth module ble 4.2 spp3.0 Classic 2.4g wireless module rf support AT command

[Frequency]:2.400~2.480GHz

[Protocol]:V4.2+V3.0 SPP

[Distance]:30m

[Size]:21*13mm

[Weight]:0.8±0.1g

[Feature]:Low power consumption,Dual-mode Bluetooth module

[Product weight]:0.8±0.1g

[Introduction]:E104-BT40 module is a serial to dual-mode bluetooth slave module based on bluetooth 4.2 + 3.0 version, namely low power consumption bluetooth ble and classic bluetooth SPP Profile, which can freely switch between ble and Classic bluetooth, working at 2.4GHz.

E104-BT40
Pin No. Definition Direction Function Description
1 GND - Power supply Power supply reference
2 TXD Output Serial datatransmission Module outputs serial data to external
3 RXD Input Serial datareception Module receives external serial data
4 P02 Output General output IO User can set output level
5 P03 Output General output IO IO User can set output level①
6 P04 - - NC
7 P05 - - NC
8 P06 - - NC
9 P07 - - NC
10 GND - Power supply Power supply reference
11 P10 Input General input IO User can read IO level,internal pull-up
12 P11 Input General input IO User can read IO level,internal pull-up
13 PWM2 Output Output PWM User configures output PWM wave
14 PWM3 Output Output PWM User configures output PWM wave②
15 P33 - CTS -
16 P34 - RTS -
17 VCC - 3.3V Power supply input
18、19 GND - Power supply Power supply reference
20~22 NC - - -
23 RST - Reset pin Active low level
24 STATUS Output State indicator LED Bluetooth is not connected: output frequency is 1Hz square wave Bluetooth is connected: Low level
25 MODE Input Mode selection Low level: configuration mode ③High level: transparent transmission mode
26 DISC Input Disconnection Internal pull-up, valid on falling edge
27 LINK Output Connection state Bluetooth is not connected: high level Bluetooth is connected: Low level
28 GND - Power supply Power supply reference