Both SCL and SDA have 3,something volt. (close to 3,3)
This means I do not need resistors right?
It is a NodeMCU 1 board running the latest ESP easy...
I tested with a DHT11 and this works fine with ESP easy.
On an Arduino, this HTU21D works fine as well..
Search found 3 matches
- 19 Oct 2016, 09:17
- Forum: ESP Easy: General Discussion
- Topic: HTU21D Sensor?
- Replies: 7
- Views: 7728
- 18 Oct 2016, 10:09
- Forum: ESP Easy: General Discussion
- Topic: HTU21D Sensor?
- Replies: 7
- Views: 7728
Re: HTU21D Sensor?
I am fighting with a ESP-12E and a HTU21D... I cannot get it to work. I am using the latest ESPEasy firmware (137). I connect the + to the 3v3 pin, the - to the ground pin. then the SDA GPIO-4 and SDL to GPIO-5 In ESP Easy I configure a SI7021 with correct IDX for Domoticz. This IDX is a dummy in D...
- 11 Oct 2016, 20:52
- Forum: ESP Easy: General Discussion
- Topic: HTU21D Sensor?
- Replies: 7
- Views: 7728
Re: HTU21D Sensor?
I am fighting with a ESP-12E and a HTU21D... I cannot get it to work. I am using the latest ESPEasy firmware (137). I connect the + to the 3v3 pin, the - to the ground pin. then the SDA GPIO-4 and SDL to GPIO-5 In ESP Easy I configure a SI7021 with correct IDX for Domoticz. This IDX is a dummy in Do...