arduino


ESP8266 write value into RTC Memory


I would like to store a sensor reading so that I can compare it to the next sensor reading after deepsleep.
The Value I'd like to store is a distance measurement ranging from 1 - 400 cm?
I tried to get behind the syntax on how to save an integer into RTC memory but I simply can't create a working code that loads the stored value after deep sleep.
So my question is: What is the simplest method of writing an integer between 1 and 400 into RTC --> read it after DeepSleep --> and overwrite it with a new value?
extern "C" {
#include "user_interface.h"
}
void setup() {
}
void loop(){
old_value = system_rtc_mem_read(64, old_value, 2);
new_value = take measurement;
compare old_value with new value;
old_value = system_rtc_mem_write(64, new_value, 2);
}

Related Links

heap memory release policy in Arduino
How to transfer GPS data to another shield while making data readable
Why is my motor not going the distance I tell it to?
arduino program runs only at start up
Does the Arduino Wifi Shield (antenna connector) require an external antenna to work?
iRobot Create not responding to commands
multiple simultaneous outputs arduino mega without array
how can my android app read data from arduino adk?
Onewire temperatures to MQTT broker server
SIM900 GSM/GPRS not getting a proper AT+CREG? answer
Arduinio sd on Ethernet shield not working at all
How to compile AVR code in Arduino?
Arduino ultrasonic distance sensor
problen with Serial communication with Arduino in ubuntu c++ with boost::asio
Arduino ethernet shield, on post LED will not turn on
Arduino PINs not behaving equaly

Categories

HOME
gradle
google-analytics
slickgrid
reverse-geocoding
scenekit
houndify
google-cloud-kms
filesystems
put
wayland
opentsdb
amazon-cloudsearch
osticket
fluent-assertions
bpm
axon
polymer-1.0
cider
fgets
mdm
jsx
indexof
xml-configuration
ddos
ext4
bing-api
spacing
c#-to-f#
webm
android-adapter
pam
appery.io
gperftools
state
polymer-serve
lightgallery
codeigniter-2
google-tv
sqlcmd
watchdog
c#-6.0
maximo-anywhere
instrumentation
auto-value
http-status-code-415
exceljs
generated
implicit
powerview
azure-webjobssdk
google-api-webmasters
webtorrent
onbeforeunload
agile-project-management
timedelta
rodbc
groovy-eclipse
little-endian
firefox-addon-bootstrap
into-outfile
tvml
listboxitem
pagerslidingtabstrip
sqlsrv
angular-ui-tree
fody-propertychanged
delphi-5
mod-jk
undefined-symbol
wordpress-4.5
template-strings
authentication-flows
sql-server-2008-express
voog
magnetometer
build-system
automapper-3
jsqlparser
controltemplate
rhodecode
bonjour
teamcity-7.1
string-conversion
activator
countries
dbase
uipicker
.class-file
pull-to-refresh
readelf
set-theory
wexitstatus
timezoneoffset
nested-queries
dynamic-content
crashrpt
juggernaut
set-include-path
fql.multiquery
mahjong
multiple-versions
trackback

Resources

Encrypt Message



code
soft
python
ios
c
html
jquery
cloud
mobile