Hardware wiring¶
This document mainly introduces the hardware needed for downloading and program firmware, sending AT commands and receiving AT responses, and how to connect the hardware.
For different series of modules, the commands supported by AT default firmware will be different. Refer to for details Firmware iterations and differences
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
USB to TTL |
TB-01 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
PB1 |
RXD |
PB0 |
TB-02 wiring
USB to TTL |
TB-02 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RX0 |
RXD |
TX0 |
TB-03F wiring
USB to TTL |
TB-03F |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
PA0 |
RXD |
PB1 |
TB-04 wiring
USB to TTL |
TB-04 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RXD |
RXD |
TXD |
PB PHYplus bluetooth series¶
PB-01/PB-02 wiring
USB to TTL |
PB-01/PB-02 |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
RXD |
RXD |
TXD |
PB-03/PB-03F/PB-03M wiring
USB to TTL |
PB-03/PB-03F/PB-03M |
|---|---|
VCC |
3.3V |
GND |
GND |
TXD |
P10 |
RXD |
P9 |