Hardware Connection
This document describes the hardware required for downloading and flashing firmware, sending AT commands, and receiving AT responses, as well as how to connect the hardware.
Supported commands may vary across module series in the default AT firmware. See Firmware Versions and Feature Differences for details.
Ai-WB2 Series
USB-to-TTL |
Ai-WB2 Series |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RXD |
RXD |
TXD |
BW16 Module (Realtek RTL8720DN Solution)
USB-to-TTL |
BW16 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RXD |
RXD |
TXD |
TB Telink Bluetooth Series
TB-01 Wiring Diagram
USB-to-TTL |
TB-01 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
PB1 |
RXD |
PB0 |
TB-02 Wiring Diagram
USB-to-TTL |
TB-02 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RX0 |
RXD |
TX0 |
TB-03F Wiring Diagram
USB-to-TTL |
TB-03F |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
PA0 |
RXD |
PB1 |
TB-04 Wiring Diagram
USB-to-TTL |
TB-04 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RXD |
RXD |
TXD |
PB Fengjia Bluetooth Series
PB-01/PB-02 Wiring Diagram
USB-to-TTL |
PB-01/PB-02 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RXD |
RXD |
TXD |
PB-03/PB-03F/PB-03M Wiring Diagram
USB-to-TTL |
PB-03/PB-03F/PB-03M |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
P10 |
RXD |
P9 |