HF-BL200A Low Energy Bluetooh
(
BLE 4.1
)
Module User Manual
Shanghai High Flying Electronics Technology Co., Ltd www.hi-flying.com
- 11
-
Pull high for more than 5 seconds to restore the factory
settings, IO03/SPI-M CSN/PWM3
9
WAKE
DIG I/O
Pull low to wake up Bluetooth
IO04 / SPI-M MOSI / PWM4
10
BCTS
DIG I/O The default output low, high data output is sent, used to
wake up the MCU, the data is sent after the output low
IO05 / I2C-M
11
IO06
DIG I/O GPIO/I2C-M
12
VDD
Power
Power input, 2.7V ~ 3.6V
14
UART_TX
DIG I/O 3.3V TTL
IO09
15
UART_RX
DIG I/O 3.3V TTL
IO10
16
RESET
DIG I
Hardware reset, active low
17
UART_DEB_TX
DIG I/O Debug UART_TX
IO15
18
UART_DEB_RX
DIG I/O Debug UART_TX
IO16
20
RF
RF
RF antenna pin
note:
1, In normal startup
, IO03 and IO24 must be connected with 4.7K pull-down resistor
. When it
needs to enter programming mode, reset IO03 and use UART_DEB_TX and UART_DEB_RX to
program the program.