arduino-esp32/README.md

# Arduino core for ESP32 WiFi chip

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## Contents
- [Development Status](#development-status)
- [Installation Instructions](#installation-instructions)
- [Decoding Exceptions](#decoding-exceptions)
- [Issue/Bug report template](#issuebug-report-template)
- [ESP32Dev Board PINMAP](#esp32dev-board-pinmap)

## Development Status
Most of the framework is implemented. Most noticable is the missing analogWrite. While analogWrite is on it's way, there are a few other options that you can use:
- 16 channels [LEDC](cores/esp32/esp32-hal-ledc.h) which is PWM
- 8 channels [SigmaDelta](cores/esp32/esp32-hal-sigmadelta.h) which uses SigmaDelta modulation
- 2 channels [DAC](cores/esp32/esp32-hal-dac.h) which gives real analog output

## Installation Instructions

#### [Latest release ![Release Version](https://img.shields.io/github/release/espressif/arduino-esp32/all.svg?style=plastic) ![Release Date](https://img.shields.io/github/release-date/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/)

- Using Arduino IDE Boards Manager (preferred)
  + [Instructions for Boards Manager](docs/arduino-ide/boards_manager.md)
- Using Arduino IDE with the development repository
  + [Instructions for Windows](docs/arduino-ide/windows.md)
  + [Instructions for Mac](docs/arduino-ide/mac.md)
  + [Instructions for Debian/Ubuntu Linux](docs/arduino-ide/debian_ubuntu.md)
  + [Instructions for Fedora](docs/arduino-ide/fedora.md)
  + [Instructions for openSUSE](docs/arduino-ide/opensuse.md)
- [Using PlatformIO](docs/platformio.md)
- [Building with make](docs/make.md)
- [Using as ESP-IDF component](docs/esp-idf_component.md)
- [Using OTAWebUpdater](docs/OTAWebUpdate/OTAWebUpdate.md)

#### Decoding exceptions

You can use [EspExceptionDecoder](https://github.com/me-no-dev/EspExceptionDecoder) to get meaningful call trace.

#### Issue/Bug report template
Before reporting an issue, make sure you've searched for similar one that was already created. Also make sure to go through all the issues labelled as [for reference](https://github.com/espressif/arduino-esp32/issues?utf8=%E2%9C%93&q=is%3Aissue%20label%3A%22for%20reference%22%20).

Finally, if you're sure no one else had the issue, follow the [ISSUE_TEMPLATE](docs/ISSUE_TEMPLATE.md) while reporting any issue.


## ESP32Dev Board PINMAP

![Pin Functions](docs/esp32_pinmap.png)

## Hint

Sometimes to program ESP32 via serial you must keep GPIO0 LOW during the programming process