# Attendance systems ## Description Attendance IOT device, to register attendances trough a mqtt broker ## Project Details - **Owner:** pepijn - **Created:** 3/21/2024 - **Last Updated:** 3/21/2024 - **Visibility:** Public ## Key Components ### rfid — [RC522 RFID](https://www.flux.ai/jecstronic/rc522-rfid.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://www.handsontec.com/dataspecs/RC522.pdf - Manufacturer Name: Handson Technology - Manufacturer Part Number: RC522 - Part Type: Module **Pins:** - GND [pin 3] - IRQ [pin 4] - MISO/SCL/Tx [pin 5] - MOSI [pin 6] - RST [pin 2] - SCK [pin 7] - SS/SDA/Rx [pin 8] - VCC [pin 1] ### tft display — [Adafruit SPI TFT LCD Display Touch ILI9341](https://www.flux.ai/jharwinbarrozo/adafruit-spi-tft-lcd-display-touch-ili9341.md) - Part Type: Display Device - Manufacturer Name: Adafruit Industries - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: Adafruit ILI9341 - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/ILI9341.pdf **Pins:** - CS [pin 12] - D/C [pin 10] - GND [pin 13] - LED [pin 7] - MISO [pin 6] - MOSI [pin 9] - RESET [pin 11] - SCK [pin 8] - SD_CS [pin SD4] - SD_MISO [pin SD2] - SD_MOSI [pin SD3] - SD_SCK [pin SD1] - T_CLK [pin 5] - T_CS [pin 4] - T_DIN [pin 3] - T_DO [pin 2] - T_IRQ [pin 1] - VCC [pin 14] ### U1 — [MCP23017-E-SP](https://www.flux.ai/jecstronic/mcp23017-e-sp.md) - Datasheet URL: http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en023709 - Manufacturer Part Number: MCP23017-E/SP - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Microchip - Part Type: Integrated Circuit **Pins:** - ~RESET~ [pin 18] - A0 [pin 15] - A1 [pin 16] - A2 [pin 17] - GPA0 [pin 21] - GPA1 [pin 22] - GPA2 [pin 23] - GPA3 [pin 24] - GPA4 [pin 25] - GPA5 [pin 26] - GPA6 [pin 27] - GPA7 [pin 28] - GPB0 [pin 1] - GPB1 [pin 2] - GPB2 [pin 3] - GPB3 [pin 4] - GPB4 [pin 5] - GPB5 [pin 6] - GPB6 [pin 7] - GPB7 [pin 8] - INTA [pin 20] - INTB [pin 19] - NC [pin 14] - NC [pin 11] - SCK [pin 12] - SDA [pin 13] - VDD [pin 9] - VSS [pin 10] ### U2 — [ESP32-C3-12F](https://www.flux.ai/jecstronic/esp32-c3-12f.md) - Manufacturer Part Number: ESP32-C3-12F - Part Type: Module - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: RF Solutions - Datasheet URL: https://docs.ai-thinker.com/_media/esp32/docs/esp-c3-12f_specification.pdf **Pins:** - EN [pin 3] - GND [pin 15] - IO0 [pin 1] - IO1 [pin 2] - IO10 [pin 17] - IO18 [pin 19] - IO19 [pin 20] - IO2 [pin 4] - IO3 [pin 5] - IO4 [pin 6] - IO5 [pin 7] - IO6 [pin 12] - IO7 [pin 13] - IO8 [pin 16] - IO9 [pin 18] - NC [pin 11] - NC [pin 10] - NC [pin 14] - NC [pin 9] - RX [pin 21] - TX [pin 22] - VCC [pin 8] ### U3 — [ESP32-C3-12F](https://www.flux.ai/jecstronic/esp32-c3-12f.md) - Part Type: Module - Manufacturer Part Number: ESP32-C3-12F - Datasheet URL: https://docs.ai-thinker.com/_media/esp32/docs/esp-c3-12f_specification.pdf - Manufacturer Name: RF Solutions - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - EN [pin 3] - GND [pin 15] - IO0 [pin 1] - IO1 [pin 2] - IO10 [pin 17] - IO18 [pin 19] - IO19 [pin 20] - IO2 [pin 4] - IO3 [pin 5] - IO4 [pin 6] - IO5 [pin 7] - IO6 [pin 12] - IO7 [pin 13] - IO8 [pin 16] - IO9 [pin 18] - NC [pin 11] - NC [pin 10] - NC [pin 14] - NC [pin 9] - RX [pin 21] - TX [pin 22] - VCC [pin 8] ### Wemos d1 — [WeMos D1 mini](https://www.flux.ai/jharwinbarrozo/wemos-d1-mini.md) - Manufacturer Part Number: WeMos_D1_mini - Part Type: Integrated Circuit **Pins:** - 3V3 - 5V - A0 - CS/D8 - D0 - D3 - D4 - GND - MISO/D6 - MOSI/D7 - RST - RX - SCK/D5 - SCL/D1 - SDA/D2 - TX *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/pepijn/attendance-systems](https://www.flux.ai/pepijn/attendance-systems).* --- *Generated from [https://www.flux.ai/pepijn/attendance-systems](https://www.flux.ai/pepijn/attendance-systems)*