Inkplate 6FLICK – Free GPIO pins
Inkplate 6FLICK's onboard ESP32 WROVER-E has some pins reserved for internal use (for example, the connection to the e-paper display) and cannot be used for end-user applications. This page contains a list of the available GPIO pins that can be used for external applications.
If you don't need pin details and are just interested in the pins, here are the Inkplate 6FLICK pins that are not connected to any external component:
ESP32: IO36, IO39, GPIO EXPANDER 1: P1-7, P1-7, GPIO EXPANDER 2: P0-0 to P1-7
Inkplate 6FLICK free pins
See the table below for pin functions and what each pin is connected to:
Free pin table
| PIN | CONNECTED TO | FUNCTION |
|---|---|---|
| TXD | CH340 | UART transmit pin |
| RXD | CH340 | UART receive pin |
| IO12 | SDCARD | ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3 |
| IO13 | SDCARD | ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER |
| IO14 | SDCARD | ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2 |
| IO15 | JP3 Check jumper details | ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD, EMAC_RXD3 |
| IO34 | JP6 Check jumper details | ADC1_CH6, RTC_GPIO4 |
| IO35 | V_BAT | ADC1_CH7, RTC_GPIO5 |
| IO36 | FREE | ADC1_CH0, RTC_GPIO0 |
| IO39 | FREE | ADC1_CH3, RTC_GPIO3 |
| P1-1 | JP7 Check jumper details | SD_DATA1, EMAC_TX_ER |
| P1-5 | JP8 Check jumper details | SD_DATA1, EMAC_TX_ER |
| P1-6 | FREE | SD_DATA1, EMAC_TX_ER |
| P1-7 | FREE | SD_DATA1, EMAC_TX_ER |
| GPIO Expander 2: P0-0 - P1-7 | FREE | SD_DATA1, EMAC_TX_ER |