ESP8266 Community Forum

- Thu Jan 12, 2017 4:49 am #60878

So my goal is to bring the full session time (wake up, data acquisition, router connection, ThingSpeak connection, deep-sleep) below 800ms for
- 1-wire 18B20 (possibly 2 sensors at FULL 12 bits resolution)
- BMP180 temperature - BMP180 pressure
- battery voltage
- timing info

Success: 700ms (full session time, with two 18B20 at full resolution)


The trick is to work in masked time and avoid the 750ms delay per sensor specified in the official example

- Thu Jan 12, 2017 10:38 am #60898 Thingspeak has MQTT API available now - it may be possible to further reduce the time by using Thingspeak MQTT API rather than REST API.

https://www.mathworks.com/help/thingspeak/mqtt-api.html

- Fri Jan 13, 2017 11:54 am #60959 Thanks, I will give it a try

- Fri Jan 13, 2017 2:09 pm #60968 I tried a kind of 'publish and sleep' code with the new Thingspeak MQTT API.
Not faster than Http get in my case (.....no permanent connection to ThingSpeak MQTT broker )
PubSubClient 2.6.0 used

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