Data Sheet
Table Of Contents
- 1 Overview
- 2 Pin Definitions
- 3 Functional Description
- 4 Peripherals and Sensors
- 4.1 Descriptions of Peripherals and Sensors
- 4.1.1 General Purpose Input / Output Interface (GPIO)
- 4.1.2 Analog-to-Digital Converter (ADC)
- 4.1.3 Hall Sensor
- 4.1.4 Digital-to-Analog Converter (DAC)
- 4.1.5 Touch Sensor
- 4.1.6 Ultra-Low-Power Co-processor
- 4.1.7 Ethernet MAC Interface
- 4.1.8 SD/SDIO/MMC Host Controller
- 4.1.9 SDIO/SPI Slave Controller
- 4.1.10 Universal Asynchronous Receiver Transmitter (UART)
- 4.1.11 I²C Interface
- 4.1.12 I²S Interface
- 4.1.13 Infrared Remote Controller
- 4.1.14 Pulse Counter
- 4.1.15 Pulse Width Modulation (PWM)
- 4.1.16 LED PWM
- 4.1.17 Serial Peripheral Interface (SPI)
- 4.1.18 Accelerator
- 4.2 Peripheral Pin Configurations
- 4.1 Descriptions of Peripherals and Sensors
- 5 Electrical Characteristics
- 6 Package Information
- 7 Part Number and Ordering Information
- 8 Learning Resources
- Appendix A – ESP32 Pin Lists
- Revision History
4 Peripherals and Sensors
Interface Signal Pin Function
Pulse Counter
pcnt_sig_ch0_in0
Any GPIO Pins
Operating in seven different modes, the
pulse counter captures pulse and counts
pulse edges.
pcnt_sig_ch1_in0
pcnt_ctrl_ch0_in0
pcnt_ctrl_ch1_in0
pcnt_sig_ch0_in1
pcnt_sig_ch1_in1
pcnt_ctrl_ch0_in1
pcnt_ctrl_ch1_in1
pcnt_sig_ch0_in2
pcnt_sig_ch1_in2
pcnt_ctrl_ch0_in2
pcnt_ctrl_ch1_in2
pcnt_sig_ch0_in3
pcnt_sig_ch1_in3
pcnt_ctrl_ch0_in3
pcnt_ctrl_ch1_in3
pcnt_sig_ch0_in4
pcnt_sig_ch1_in4
pcnt_ctrl_ch0_in4
pcnt_ctrl_ch1_in4
pcnt_sig_ch0_in5
pcnt_sig_ch1_in5
pcnt_ctrl_ch0_in5
pcnt_ctrl_ch1_in5
pcnt_sig_ch0_in6
pcnt_sig_ch1_in6
pcnt_ctrl_ch0_in6
pcnt_ctrl_ch1_in6
pcnt_sig_ch0_in7
pcnt_sig_ch1_in7
pcnt_ctrl_ch0_in7
pcnt_ctrl_ch1_in7
Espressif Systems 41
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ESP32 Series Datasheet v3.5