KAmodRPi-Pmod-HAT is a HAT for Raspberry Pi 4B/3B+/3B/2B/B+ minicomputers that allows use of the communication interfaces available on the 40-pin minicomputer connector. The overlay provides connectors in the Pmod standard and in the KAMAMI standard for I2C, SPI and UART interfaces.
Basic parameters
Expansion module for Raspberry Pi 4B, 3B+, 3B, 2B, B+ minicomputers
Embedded ID-EEPROM memory
Connectors for I2C, SPI and UART interfaces
Pmod connectors
KAMAMI connectors
40-pin through connector compatible with the Raspberry Pi standard
Embedded jumpers enabling pull-up on I2C bus lines
Mounting holes with a diameter of 2.5 mm
Dimensions: 65 mm x 56 mm x 16 mm
Standard equipment
Code
Description
KAmodRPi-Pmod-HAT
Assembled and launched module
Four spacers with a set of screws for mounting
Schematic
Pin description - I2C KAMAMI standard connector
Pin number
Function
1 (VDD_3,3V)
Power supply (max. 3,3 V)
2 (SCL)
Clock line of the I2C bus
3 (SDA)
Data line of the I2C bus
4 (GND)
Ground
Opis wyprowadzeń – złącze SPI standardu KAMAMI
Pin number
Function
1 (VDD_3,3V)
Power supply (max. 3,3 V)
2 (CS)
CS line of the SPI bus
3 (MOSI)
Data line to peripheral chip of the SPI bus
4 (MISO)
Data line from peripheral chip of the SPI bus
5 (CLK)
Clock line of the SPI bus
6 (GND)
Ground
Opis wyprowadzeń – złącze I2C standardu Pmod
Pin number
Function
1, 2 (SCL)
Clock line of the I2C bus
3, 4 (SDA)
Data line of the I2C bus
5, 6 (GND)
Ground
7, 8 (VDD_3,3V)
Power supply (max. 3,3 V)
9, 10 (INT)
Interrupt line
11, 12 (RESET)
Reset line
Opis wyprowadzeń – złącze SPI standardu Pmod
Pin number
Function
Pin number
Function
1 (CS)
CS line of the SPI bus
7 (INT SPI)
Interrupt line
2 (MOSI)
Data line to peripheral chip of the SPI bus
8 (RESET SPI)
Reset line
3 (MISO)
Data line from peripheral chip of the SPI bus
9 (GPIO20)
Linia I/O
4 (CLK)
Clock line of the SPI bus
10 (GPIO18)
Linia I/O
5 (GND)
Ground
11 (GND)
Ground
6 (VDD_3,3V)
Power supply (max. 3,3 V)
12 (VDD_3,3V)
Power supply (max. 3,3 V)
Opis wyprowadzeń – złącze UART standardu Pmod
Pin number
Function
1 (CTS)
CTS line of the UART bus
2 (TXD)
TX data line of the UART bus
3 (RXD)
RX data line of the UART bus
4 (RTS)
RTS line of the UART bus
5 (GND)
Ground
6 (VDD_3,3V)
Power supply (max. 3,3 V)
I2C bus lines
The KAmodRPi-Pmod-HAT module is equipped with jumpers that allow the connection of pull-up resistors to the VCC to the I2C bus line. Jumpers allow the independent activation of chin up for SDA and SCL lines.
Write protection of the ID EEPROM memory
The KAmodRPi-Pmod-HAT module is equipped with a jumper that allows write block to EEPROM memory. Write Protect protects against unwanted attempts to write data to memory.
