Power Energy Monitor Board ESP32 Pin Mapping

PinGPFunctionBoot
State
InOutPWMUsageGTEM
Net
IPEM
Net
IPEC
Net
Comments
3321SDADXN/ADataSDASDASDAI2C. Pulled High via 10K
3622SDADXN/ADataSCLSCLSCLI2C. Pulled High via 10K
1412Internal Pull-DownLowIOYesIssuesI/OGP12 GPIOGP12 GPIOGP12 GPIOStrapping Pin. Boot fail if pulled HIGH
1613IOYesYesI/OATM_IRQATM_IRQ0ATM_IRQ0
1314IOYesIssuesI/OGP14 GPIOATM_IRQ1ATM_IRQ1Outputs PWM at boot
2315Internal Pull-UpHighLEDXIssuesOutLED BLUELED BLUELED BLUEStrapping Pin. Outputs PWM at boot
3119MISOIOYesYesDataMISOMISOMISOV-SPI
3723MOSIIOYesYesDataMOSIMOSIMOSIV-SPI
3018SCKIOYesYesDataSCKSCKSCKV-SPI
295CSHighIOYesIssuesDataCSCSCSV-SPI. Strapping Pin. Outputs PWM at boot
351TX0DN/ADataUSB_TXDUSB_TXDUSB_TXDDebug output at boot
343RX0HighD/IN/AD-INUSB_RXDUSB_RXDUSB_RXDHIGH at boot
2817TX2DYesDataTTL_TXDUSR_GP17_TXUSR_GP17_TX
2716RX2DYesDataTTL_RXDUSR_GP16_RXUSR_GP16_RX
3EnableHighPN/APRGEnableEnableEnable
250GP0HighPN/APRGGP0GP0GP0Strapping Pin. Outputs PWM at boot
242Internal Pull-DownLEDXN/AOutLED REDLED REDLED REDStrapping Pin. Connected to on-board ESP LED
264ADC 2 CH0LEDXYesOutLED GREENLED GREENLED GREENStrapping Pin. Ignore 0 – 0.1V and 3.2 – 3.3V
1227ADC 2 CH7IO/AIYesYesI/OATM_WOATM_CF1ATM_CF1Ignore 0 – 0.1V and 3.2 – 3.3V
832ADC 1 CH4IO/AIYesYesI/OATM_ZXATM_CF2ATM_CF2Ignore 0 – 0.1V and 3.2 – 3.3V
933ADC 1 CH5IO/AIYesYesI/OOPTOATM_CF3ATM_CF3Ignore 0 – 0.1V and 3.2 – 3.3V
634ADC 1 CH6. NoPUDI/AINoIATM_CF1ATM_CF4ATM_CF4input only. Ignore 0 – 0.1V and 3.2 – 3.3V
735ADC 1 CH7. NoPUDI/AINoIATM_CF2CT4ATM_WOinput only. Ignore 0 – 0.1V and 3.2 – 3.3V
436VP / ADC 1 CH0. NoPUDINoA-INPCA DC Supply DCV_INPCA DC Supply DCV_INPCA DC Supply DCV_INinput only
539VN / ADC 1 CH3. NoPUDINoA-INNTC-10KNTC-10KGP39 I/O Headerinput only
1025DAC1IO/AOYesYesI/OUser_JumperATM_WOPWM_/LDACWith pullup and decoupling cap
1126DAC2IO/AOYesYesI/OUser_ButtonUser_ButtonUser_ButtonWith pullup and decoupling cap