---
layout: wiki
title: ESP32Hacking
updated: 2019-08-06 09:54
author: rick
default: false
---

Wemos LoLin32 clone with OLED
<https://projetsdiy.fr/deballage-clone-wemos-esp32-lolin-ecran-oled-monochrome-ssd1306/>

<https://docs.espressif.com/projects/esp-idf/en/latest/security/secure-boot.html#signed-app-verify>
<https://docs.espressif.com/projects/esp-idf/en/latest/security/secure-boot.html#secure-boot-generate-key>
<https://docs.espressif.com/projects/esp-idf/en/latest/security/secure-boot.html#remote-sign-image>

Board details:

  - Adruino 'Tools -> Board': WEMOS LOLIN32
  - OLED display wired differently use: SSD1306Wire  display(0x3c, 5, 4)

In Arduino preferences:

  - Additional Boards Manager URLs: <https://dl.espressif.com/dl/package_esp32_index.json>

Add extra libraries:

```sh
$ cd /home/rick/Arduino/libraries
$ git clone https://github.com/ThingPulse/esp8266-oled-ssd1306.git
$ git clone https://github.com/arduino-libraries/NTPClient.git
```
Interesting cross-platform implementation
=========================================

  - <https://freertos.org/index.html>
  - <https://aws.amazon.com/freertos/>

ESP32 own toolchain has support for more resent features:

>    https://dl.espressif.com/doc/esp-idf/latest/get-started/index.html#build-and-flash
<https://exploreembedded.com/notes/Overview_of_ESP32_features._What_do_they_practically_mean%3F>
<https://www.espressif.com/sites/default/files/documentation/esp32_technical_reference_manual_en.pdf>
<http://esp-idf.readthedocs.io/en/latest/api-guides/ulp_instruction_set.html>

Issues
======
Onboard temperature sensor not working

---

>    https://github.com/espressif/esp-idf/issues/146
>    http://wiki.jackslab.org/ESP32_Onchip_Sensor
<https://sigmdel.ca/michel/ha/rpi/add_mqtt_en.html>
<https://sigmdel.ca/michel/ha/domoticz/domoticz_add_mqtt_en.html>