RST Pin Functionality Overview

flux

1:56

Clarifying user request.

Interpreting the user's request.

Identifying intents and using tools.

Using the schematic tool.

Accessing knowledge base.

Analyzing the schematic.

Looking for "EN pin description" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN pin function reset chip enable" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN pin electrical characteristics" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN input voltage threshold VIL VIH" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN pin internal pull-up or pull-down" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN pin recommended external circuit pull-up capacitor reset" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN pin leakage current or input current" in esp32-h2-wroom-03_datasheet_en.pdf

Looking for "EN pin absolute maximum ratings" in esp32-h2-wroom-03_datasheet_en.pdf

Clarifying the RST net pin.

You’re pointing at RST, which is a Net Portal (a named net), not a device with its own datasheet. In this project, RST ties to the ESP32 module’s enable/reset pin: U1 EN (a.k.a. CHIP_EN). Below are the EN/CHIP_EN pin details taken from the module datasheet.
Source: ESP32-H2-WROOM-03 Datasheet (Espressif) – Datasheet
EN / CHIP_EN (ESP32-H2-WROOM-03)
  • Function
    • High: chip enabled (powered up).
    • Low: chip disabled (powered down).
    • Do not leave floating.
  • Pin type and direction
    • Digital input (chip enable/reset).
  • Input characteristics (DC, 3.3 V, 25 C)
    • High-level input threshold (VIH): at least 0.75 * VDD1
    • Low-level input threshold (VIL): at most 0.25 * VDD1
    • Input leakage currents: IIH <= 50 nA, IIL <= 50 nA
    • Default biasing: internally pulled up
  • Recommended external network (from module datasheet)
    • 10 kΩ pull-up to VDD33
    • 1 µF capacitor from EN to GND
  • Special considerations
    • Keep EN’s RC network close to U1 to reduce noise coupling.
    • Since EN controls full chip power-down, avoid long/noisy traces and ensure a solid pull-up so it cannot float.
    • For reliable power-on reset behavior, follow the 10 kΩ + 1 µF recommendation above.
    • General MCU reset best practice: include a pull-up on reset/enable lines; diagnose EMI or supply sags if you observe spurious resets.
If you’d like, I can add the recommended 10 kΩ pull-up and 1 µF capacitor to EN on U1.
Add EN reset network
Confirm RST net connections
Add reset button
Check EN thresholds
Add programming header
80 days
Sign up to send

To get started, talk to Flux or create a New Document.

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    ESP32-H2 Relay Board.png

    ESP32-H2 Relay Board.png

    ESP32-H2 Relay BoardThumbnail

    ESP32-H2 Relay Board

    ESP32-H2 Relay Board thumbnail
    This is a WiFi relay board based on ESP32-H2 WiFi module. It have AC-DC power supply with output 12V and relay for controlling voltage #esp32 #project #Relay #wifi #esp32-h2 #iot #template

    Properties

    creativecommons.org/licenses/by/4.0/

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $5.30–$5.38

    Digi-Key

    $6.60–$6.96

    LCSC

    $4.22–$4.30

    Mouser

    $6.93

    Verical

    $5.60–$10.60

    Controls