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ESP8266 MQTT Success: A Beginner's Tutorial on MQTT and NodeMCU with ESPAsync TCP Library



I uses mqtt, and working with 6 esp8266 and arduinos(my rack server controller). those arduinos migrated to use mqtt last year. and esp8266 is on going progress (slow due on daily works and taking care my toddlers).teared down un-needed arduino devices last year since pain in the b*tt to add more devices and maintain the mesh system. the goal is replace by esp8266 with mqtt.I repurprose all sensor and I/O devices to use on esp8266.mqtt is a life saver for me


arduino is very stable running and controlling server rack cooling. I am impressed with it.I am torturing esp8266 to send mqtt topic/msg automatically and response to mqtt/topics from my command node(agent). 2 months already passes, my goal to see esp8266 is robust or kind of robust compared with arduino.




ESP8266 MQTT Success | My Tech Weblog



Hi,I attempted to install the ESP8266 Arduino addon as instructed in the hookup guide but received the following error:" _Boards/esp8266/IDE_Board_Manager/package_sparkfun_index.json file signature verification failed. File ignored." This error occurs when I open the board manager.I was able to successfully install a different addon as described at This addon installed without incident, however it is unclear whether the Thing can be programmed using any of these modules.Has anyone successfully installed the Sparkfun ESP8266 Thing addon as described in the hookup guide?If not, can any of the modules provided by the ESP8266 Arduino github can be used to program the Thing?Thanks.


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