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ESP32 Buyer s Guide: Different Chips, Firmware, Sensors

ESP32 Buyer s Guide: Different Chips, Firmware, Sensors
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LoRa Air Quality Monitoring System

LoRa Air Quality Monitoring System 05/06/2021 IoT Tech Put to Good Use The degrading quality of air around us remains one of the most serious issues of the 21st century. In this project article, Dhairya designs and builds a long-range and low-power system for monitoring air quality, using various sensors and the popular LoRaWAN communication protocol. Topics Discussed What is the system workflow? How to interface the sensors How to set up the LoRa network How to set up the dashboard Tech Used Dragino’s LoRa shield for Arduino v1.4 (EU868) CCS811 gas sensor DSM501A PM2.5 dust sensor module Raspberry Pi SBC

HTTPS Everywhere Now Uses DuckDuckGo s Smarter Encryption | Electronic Frontier Foundation

DuckDuckGo’s Smarter Encryption covers more domains than our current model. Browsers and websites are moving away from issues that created a need for more granular ruleset maintenance. Mixed content is now blocked in major browsers Different domains for secure connection are now an older habit (i.e. secure.google.com), further removing the need for granular maintenance on HTTPS Everywhere rulesets Chrome’s Manifest V3 declarativeNetRequest API will force the web extensions to have a ruleset cap. Instead of competing with other extensions like DuckDuckGo, if the user prefers to use HTTPS Everywhere or DuckDuckGo s Privacy Essentials, they will receive virtually the same coverage. We don’t want to create confusion for users on “who to choose” when it comes to getting the best coverage.

Learn c in Y Minutes

the language of modern high-performance computing. C is the lowest-level language most programmers will ever use, but it more than makes up for it with raw speed. Just be aware of its manual memory management and C will take you as far as you need to go. About compiler flags By default, gcc and clang are pretty quiet about compilation warnings and errors, which can be very useful information. Explicitly using stricter compiler flags is recommended. Here are some recommended defaults: -Wall -Wextra -Werror -O2 -std=c99 -pedantic For information on what these flags do as well as other flags, consult the man page for your C compiler (e.g.

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