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Update esp8266 post

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This commit is contained in:
Paulus Schoutsen 2016-06-19 21:17:01 -07:00
parent 848c935880
commit 152c6499b1
1 changed files with 10 additions and 5 deletions
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15
source/_posts/2015-10-11-measure-temperature-with-esp8266-and-report-to-mqtt.markdown
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@ -39,9 +39,12 @@ I've been using Adafruit for my shopping:
_Besides this, you will need the usual hardware prototype equipment: a breadboard, some wires, soldering iron + wire, Serial USB cable._
<p class='note'>
Adafruit has stopped selling the HDC1008. One possible replacement is the [BME280](https://www.adafruit.com/product/2652). Adjusted sketch to work with the BME280 can be found [here](https://gist.github.com/mtl010957/9ee85fb404f65e15c440b08c659c0419).
</p>
### {% linkable_title Alternatives %}
Since this article has been published the HDC1008 has been discontinued. Updated sketches are available for the following alternatives:
- [DHT22 sensor](https://www.adafruit.com/product/385) and [updated sketch](https://gist.github.com/balloob/1176b6d87c2816bd07919ce6e29a19e9).
- [BME280 sensor](https://www.adafruit.com/product/2652) and [updated sketch](https://gist.github.com/mtl010957/9ee85fb404f65e15c440b08c659c0419).
### {% linkable_title Connections %}
@ -111,7 +114,8 @@ void setup() {
if (!hdc.begin()) {
Serial.println("Couldn't find sensor!");
while (1);
}}
}
}
void setup_wifi() {
delay(10);
@ -153,7 +157,8 @@ void reconnect() {
}
bool checkBound(float newValue, float prevValue, float maxDiff) {
return newValue < prevValue - maxDiff || newValue > prevValue + maxDiff;
return !isnan(newValue) &&
(newValue < prevValue - maxDiff || newValue > prevValue + maxDiff);
}
long lastMsg = 0;