Est. Budget: $30.00
I am using an Arduino Uno + Ethernet shield, loaded with a Teleduino client code to control a pin state from Internet. This works, however when I try to add an I2C TMP421 temp sensor http://moderndevice.com/product/tmp421-temp-sensor/ using Wire.h library it is not able to connect to Teleduino server any longer. Same issue occurs when I try to use Serial.print command, and happened with the DHT11 library (removed it, and the sensor since then). My suspicion ...