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pfpp-rtcc-boosterpack

A boosterpack-compatible board for pfpp project.

This board holds a battery-backup'ed precision RTCC. It's main duty is to keep the time of the day and manage alarms that are set for feeding your pet.

on top of an RTCC, it also holds a MicroSD card cage, and a TB6612 motor controller. The MicroSD card can be used for logging events. The motor controller is used to activate the feeder.

This project was originally built for the EK-TM4C129EXL development board, on boosterpack2 location. It should work on any BoosterPack-compatible interface.

GPIO Mapping

GPIO match for various development boards.

EK-TM4C129EXL

J1

Pin MCU Pin BoosterPack Schematic
1 +3.3V +3.3V
2 PD2 NC
3 PP0 NC
4 PP1 NC
5 See JP4 SPI_SDC_CSn
6 See JP5 NC
7 PQ0 SPI_CLK
8 PP4 NC
9 PN5 NC
10 PN4 NC

J2

Pin MCU Pin BoosterPack Schematic
1 GND GND
2 PM7 NC
3 PP5 NC
4 PA7 SD_DET
5 Reset NC
6 PQ2/PA3 SPI_MOSI
7 PQ3/PA2 SPI_MISO
8 PP3 RTCC_INTn
9 PQ1 SPI_RTCC_CSn
10 PM6 AIN2

J3

Pin MCU Pin BoosterPack Schematic
1 +5V NC
2 GND GND
3 PB4 NC
4 PB5 NC
5 PK0 NC
6 PK1 NC
7 PK2 NC
8 PK3 NC
9 PA4 NC
10 PA5 NC

J4

Pin MCU Pin BoosterPack Schematic
1 PG1 PWMB
2 PK4 PWMA
3 PK5 NC
4 PM0 NC
5 PM1 NC
6 PM2 BIN2
7 PH0 BIN1
8 PH1 STBYn
9 PK6 AIN1
10 PK7 RTCC_RST

EK-TM4C123GXL

Even if the board was 1st developed for the EK-TM4C129EXL, the GPIO pin matching for the EK-TM4C123GXL corresponds to the symbols in the schematic.

Pin J1 MCU Pin J1 BoosterPack Schematic J3 MCU Pin J3 BoosterPack Schematic
1 +3.3V +3.3V +5V NC
2 PB5 NC GND GND
3 PB0 NC PB4 NC
4 PB1 NC PB5 NC
5 PE4 SPI_SDC_CSn PK0 NC
6 PE5 NC PK1 NC
7 PB4 SPI_CLK PK2 NC
8 PA5 NC PK3 NC
9 PA6 NC PA4 NC
10 PA6 NC PA5 NC
Pin J4 MCU Pin J4 BoosterPack Schematic J2 MCU Pin J2 BoosterPack Schematic
1 PF2 PWMB GND GND
2 PF3 PWMA PB2 NC
3 PB3 NC PB0 NC
4 PC4 NC PF0 SD_DET
5 PC5 NC Reset NC
6 PC6 BIN2 PB7 SPI_MOSI
7 PC7 BIN1 PB6 SPI_MISO
8 PD6 STBYn PA4 RTCC_INTn
9 PD7 AIN1 PA3 SPI_RTCC_CSn
10 PC4 RTCC_RST PA2 AIN2

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A boosterpack-compatible board for pfpp project

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