Raspberry Pi - RS232 COM & Serial console  Board

1. provide DB9 male COM port

2. provide i2c DS1307 RTC with CR1220 bauk-up battery

3. provide RFID socket ( SPI signal) / NRF24L01 socket (SPI signal)

    you can choose use RFID or NRF24L01  ( both use SPI signal)

4. Provide 2 extra i2c device input port, one for 3.3V, one for 5V (with Logic Level converter)

5. provide 3.3V power Regulator for 3.3V device ( RFID/ NRF24L01) i2c device

6. provide 3.5mm serial console cable socket,

7. provide jumper setting can change 3.5mm output TX, RX position.

3.5mm serial console cable setting

for serial console function you can setting 9600 or default 115200

RS232 console setting 

3.5mm serial console cable

RFID reader demo

the RFID socket we use CE0 for signal

 1)Command "RFID"+"INIT"+"0" 

  will initial SPI signal to active RFID Reader

 2) you will see "LastRFID" & "RFID" in Sensors

NRF24L01 demo

NRF24L01  WiFi Scanner demo