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esp8266 / Arduino

ESP8266 core for Arduino
GNU Lesser General Public License v2.1
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NodeMCU and Adafruit Flora Colour Sensor #2544

Closed LedAl closed 6 years ago

LedAl commented 7 years ago

Hello,

I'm working on creating a multi-purpose sensor on an AI-Thinker NodeMCU 1.0 (ESP8266).

I've been given a FLORA RGB Colour Sensor (https://learn.adafruit.com/adafruit-color-sensors/overview) in order to detect lux and RGB colour values, but when checking out the TCS34725 library examples they ask me to connect the SDA and SCL to analogue 4 and 5 (obviously the program has been designed for an Adruino Uno and not a NodeMCU ESP8266).

I'm wondering if any of you guys can help me connect the sensor in such a way that I can draw data from it? I think it communicates using I2C, but I'm not sure how to set up the general ports to I2C (the examples on the NodeMCU don't really help).

Thanks in Advance.

supersjimmie commented 7 years ago

On a NodeMCU: SDA = D3, gpio0 SCL = D4, gpio2 If you like you can use other pins. You need to call: Wire.begin(<sda-pin>, <sdc-pin>); So default you need: Wire.begin(D3, D4); or Wire.begin(0,2);

devyte commented 6 years ago

Off-topic, closing per #3655 .