ppm encoder decoder for EPS32 family . Based on RMT peripheral of ESP32 - fanfanlatulipe26/ESP32_ppm

YouTube video by J-Rat

前言 Picokeys是一个开源的安全密钥固件，支持在Raspberry Pico (RP2040, RP2350) 和 ESP32-S3上运行 目前PicoKeys有三种功能：HSM、Fido2 Passkey、OpenPGP & PIV 刷入固件 一般EPS32 S3开发板有两个Type-c口，一个是USB直通，一个是USB to COM 使用USB直通需要进入特殊的bootloade

I oh so wanted to build Liz Clark's QTPy CH32V203 eInk / ePaper Daily Calendar & Clock but I didn't have much luck with booting and programming the CH32V203 board.  I am no expert on how to do this. So I reversed engineered the code to Circuit Python and put in on the Huz/zah ESP32 V2 board.  I also wanted some color and used the 1.54" 3 color e-ink display. I don't have a 3-D printer so I cut a strip of plexiglass and used a heat gun to put a 45-degree bend so it looks like a paper calendar.   Below is my parts list I used to make this calendar.   The code is fairly simple, and I just pieced it together from Adafruit web pages.  Granted I could have used WiFi to pull the time down and I may but for now I wanted to get used to playing around with DS3231 board. I used a wire wrap pen which you can get off of Amazon fairly cheap.  I've added the code here as well.  I am just a NOOB to programming and mostly hack at it to get it working.  If you find this helpful, great.  It was a fun little project. Huz/zah ESP32 V2 Feather ID 5400 Adafruit EYSSPI Flex Cable 50mm ID 5462 Adafruit EYESPI Breakout Board 18 Pin Connector ID 5613 Adafruit 1.54" Tri-Color eInk / ePaper Display 200x200 with EYESPI ID 4868 Adafruit DS3231 Precision RCT Breakout Board ID 3013 STEMMA QT / Qwiic JST SH 4 pin Cable 50MM  ID 4399 Rainbow Wire Wrap ID 4730 Black Nylon Machine Screws and Stand offs M2.5 ID 3299   Wire connection table EYESPI connector   -->  ESP32 V2 VIN        --->    3v Gnd       --->    Gnd SCK       --->    SCK MOSI     --->   MOSI MISO     --->   MISO DC         --->   TX TCS       --->   RX SDCS    --->   Pin 33 * SDCS    --->   Pin 27 * Note: *  I will comment, and maybe someone could tell why but Pin 22 and 37 are not in the code but without them the display would not update.  So I am guessing the pins are either floating or pulled to ground.