These are chat archives for esp8266/Arduino

3rd
Oct 2017
brutzler
@brutzler
Oct 03 2017 08:54
Hi, has anyone experiences with light sensors (e.g. with I2C)?
Just looking at a BH1750. But its imho only as breakout available. How to use this for outdoor?....
Holger Lembke
@holgerlembke
Oct 03 2017 09:10
@brutzler yes. bme280(P:1005 mBar T:21.5° C H:64 %) bmp180(P:1005 mBar T:21.2° C) hih9130(H:70 % T:21.0° C) htu21d(T:21.1° C H:66 %) bh1750fvi(Ev:15.51 lx) TSL2561(Ev:9.10 lx) rtc(T:21.2° C)
but it is indoor
brutzler
@brutzler
Oct 03 2017 11:30
??? what do u want to tell me?
Mehrdad K
@mkeyno
Oct 03 2017 13:30
hi guys ,I intend to make 3x3 keys with 6 pin of ESP8266, I made pin 0,2,5 as pullup input and 4,5,12 as output , I made following sketch , does anyone has experience to make keypad from ESP pins? do I need more extra pullup or pulldown resistor?
1.png
Holger Lembke
@holgerlembke
Oct 03 2017 13:49
@mkeyno Should work. GPIO 16 is pulldown, all others are pullup.
Mehrdad K
@mkeyno
Oct 03 2017 14:04
thanks @holgerlembke , I'm using GPIO 16 as output