Search found 3 matches

by Kestel
Mon Feb 13, 2017 3:34 pm
Forum: ESP8266 boards
Topic: i2c lcd works only if more one device connected
Replies: 7
Views: 6562

Re: i2c lcd works only if more one device connected

And as @fdufnews said - my BMP180 board already has resistors.
by Kestel
Mon Feb 13, 2017 3:33 pm
Forum: ESP8266 boards
Topic: i2c lcd works only if more one device connected
Replies: 7
Views: 6562

Re: i2c lcd works only if more one device connected

Hello guys,

Thank you for help. Pull-up resistors help me.

I have tested it with two pull up resistors (4.7k and 10k also works fine). From SDA and SCL to 3v.
by Kestel
Sun Feb 12, 2017 7:18 pm
Forum: ESP8266 boards
Topic: i2c lcd works only if more one device connected
Replies: 7
Views: 6562

i2c lcd works only if more one device connected

Hello, I'm playing with i2c on my nodemcu board (LoLin v3), micropython version 1.8.7 (esp8266-20170108-v1.8.7.bin). I'm trying to begin LCD 1604 (or 2004) works with my board. When I connect just LCD to the ESP - it doesn't works. i2c.scan() show nothing >>> i2c = I2C(-1, scl=Pin(5), sda=Pin(4)) >>...