===== INDEX =====

  * SensoR
  * https://www.banggood.com/CJMCU-HT16K33-LED-Dot-Matrix-Drive-Control-Module-Digital-Tube-Driver-Development-Board-For-Arduino-p-1103108.html# ht16k33 # WisH LeD
  * https://www.adafruit.com/product/1427# 16x8 LED Matrix Driver Backpack - HT16K33  WisH


===== Addresses ====

  * 0x51 : RtC


===== TODO =====

  * https://elinux.org/Interfacing_with_I2C_Devices
  * https://www.adafruit.com/product/757# LeveLShifter ?
  * https://gobot.io/documentation/drivers/ads1115/# AdC
  * https://github.com/mcauser/i2cdetect/blob/master/examples/i2cdetect/i2cdetect.ino#
  * https://www.olimex.com/Products/Modules/Time/# MOD-RTC rev A 2011 https://olimex.com/dev
    * https://olimex.wordpress.com/2013/03/08/add-real-time-clock-to-olinuxino-and-raspberrypi-with-mod-rtc/# RtC ClocK
    * http://www.susa.net/wordpress/2012/06/raspberry-pi-pcf8563-real-time-clock-rtc/# PCF8563
    * https://maker.pro/raspberry-pi/tutorial/how-to-add-an-rtc-module-to-raspberry-pi
    * sudo i2cdetect -y 1 # 0x51

  sudo i2cget -y -a 1 0x51 0x00 b
  0x08
  sudo modprobe  -v rtc-pcf8563
  # insmod /lib/modules/5.10.17+/kernel/drivers/rtc/rtc-pcf8563.ko 
  # description:    Philips PCF8563/Epson RTC8564 RTC driver
  sudo i2cdump -y -f 1 0x51     
  No size specified (using byte-data access)
       0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
  00: 08 80 88 94 81 80 88 00 00 80 80 80 80 88 0b 22    ???????..??????"
  (...)
  f0: 08 80 89 94 81 80 88 00 00 80 80 80 80 88 0b 22    ???????..??????"
  
  watch i2cget -y 1 0x51
  
  echo pcf8563 0x51 | sudo tee  /sys/class/i2c-adapter/i2c-1/new_device
  ls /dev/rtc* # /dev/rtc  /dev/rtc0

  * https://raspberrypi.stackexchange.com/questions/22455/should-i-remove-fake-hwclock-because-my-i2c-rtc-isnt-always-plugged-in
  * https://pragmaticmonk.wordpress.com/2014/03/15/using-rtc-pcf8563-on-raspberry-pi-running-raspbian-os/

  sudo hwclock -w && sudo hwclock -r # 2021-05-17 10:03:53.118761+01:00
  
  echo "dtoverlay=i2c-rtc,pcf8563" | sudo tee -a /boot/config.txt

  
  * https://www.willhughes.name/post/ds3231_raspi3/
  * https://www.raspberrypi.org/forums/viewtopic.php?t=175202#


{{https://maker.pro/storage/4gMKZKS/4gMKZKSxiIghXIJig7pfu4KeOLbwaHTGUQ9MmjYr.png}}

===== MisC =====

  * https://fr.aliexpress.com/item/Livraison-gratuite-1-PCS-SAMIORE-ROBOT-HTU21D-Temp-rature-et-Capteur-D-humidit-Module-Temp-rature/32838371495.html?
  * https://cdn-shop.adafruit.com/datasheets/ht16K33v110.pdf RAM Mapping 16*8 LED Controller Driver with keyscan
  * https://learn.adafruit.com/i2c-addresses/the-list#
  * https://github.com/x3itsolutions/mcp3424# AdC
  * https://www.ti.com/product/INA219# VolT MoN


===== MORE =====

@TaG: SensoR AiR