- 1uart-Pi-Ze-li
- 2uart-Pi-Ze-li
- 2uart-Pi-Ze
3a. 2uart-232-m01
3b. 2uart-232-485-m01
- 4uart-TTL
- 1uart-2-232
- 2uart-TTL-232
- 2uart-TTL-232-485
- 4uart-ext 8a.
4uart-232-m01
8b.4uart-232-485-m01
![](images-2/1-2uartcable-demo01.jpg)
- 1 UART TTL ( Full DB( RS232 & TTL Output )
+ 1 UART TTL + Pi UART
- 2 UART With RS232/422 (Full DB9 RS232
Output) + 1 Pi UART
No5. 1uart-2-232
![](images-2/n-1uart-2-TTL-232-bp-tv02.jpg)
1. provide extra 2 UART TTL/232 select
UART1 1RS232 output TX, RX
UART 1 HAT TTL output
TX,RX,GND,3V3,CTS,RTS
UART 2 RS232 DB9 output
UART 2 HAT TTL output
TX,RX,GND,3V3,CTS,RTS
UART2 EXTRA 4 GPIO
output(G0,G1,G2,G3)
2. Pi UART can select TTL/232 output
Pi UART TTL output
TX,RX,GND,3V3,XX,XX
Pi UART RS232 output GND,
TX, RX
Pi UART provide ESP8266WiFi
module socket
3. 2 sets i2c signal out GND,5V,SDA,SCL for extend
extra UART HAT
No6. 2uart-TTL-232
![](images-2/2uart-232-bp-tv01.jpg)
1. provide extra 2 UART TTL/232 select
COM1,COM2 RS232 DB9 output
UART TTL output
TX,RX,GND,3V3,CTS,RTS
2. Pi UART can select TTL/232 output
Pi UART TTL output
TX,RX,GND,3V3,XX,XX
Pi UART RS232 output GND,
TX, RX
Pi UART provide TTL to
ESP8266WiFi module socket
3. i2c signal out GND,5V,SDA,SCL for extend
extra UART HAT
No7. 2uart-TTL-232-485
![](images-2/2uart-232-485-bp-tv-002.jpg)
1. provide extra 2 UART TTL output
TTL output signal
TX,RX,GND,3V3,CTS,RTS
2. Pi UART can select TTL/232 output
Pi UART TTL output
TX,RX,GND,3V3,XX,XX
Pi UART RS232 output GND,
TX, RX
Pi UART provide TTL to
ESP8266WiFi module socket
3. 2 set i2c signal out GND,5V,SDA,SCL for extend
extra UART HAT
4. RS485 RTS signal High/Low select jumper
5. TTL/RS232/RS485 select jumper