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BLE2U
3. Package size and pins of BLE2U-A
Pin No.
Pin Name
1
BLE_MODE
2
VCC
3
GND
4
LED
5
UD+
6
UD-
7
TXD
RXD
8
Note: P: Power. I: Input. O: Output.
4. Recommended bonding pad size for BLE2U-A
3
Pin Type
BLE mode selection, with built-in pull-up resistor
I
Low level: Slave mode. High level: Master-slave mode.
P
P
Module status and data receive/transmit indication
O
USB signal
USB signal
O
I
Description
Power input
Ground
output pin, active low
USB D+ data line
USB D - data line
UART transmit pin
UART receive pin
Symbol
Value
A
10.22
B
10.6
C
1.02
D
0.8
E
1.27
F
0.74
G
1.7
http://wch.cn
Unit
mm
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