Arduino
microcontrollers
IR Codes for Insignia TV Remote NS-RC4NA-14
I’m currently working on a project that will create an small ultra cheap IoT device that will link to Alexa or Google Home to allow you to control any IR device with your voice. Its in the ballpark of what a Logitech Harmony Hub can do but for a fraction of the cost. In doing that I needed to get the IR codes of my [...]
Arduino + Sainsmart LCD2004 Serial 16×4 LCD Screen
The Sainsmart LCD2004 is a great big 16 character by 4 line LCD screen that gives you a lot of output space but only using 2 output pins from the arduino instead of 6 output pins. The unit can be connected via the analog pin 4 to its SDA (data) and analog pin 5 to its SCL (clock). Each serial device gets a hardware [...]
AVRDUDE: stk500_getsync(): not in sync
AVRDUDE: stk500_getsync(): not in sync This error comes up quite a bit if you are doing prototyping and your Arduino suddenly stops wanting to upload newer program. It’s a confusing error because it lead many people to believe that the Arduino chip itself is damaged and not responding to the upload command. What is [...]
Arduino LCD DHT11 Temperature – Humidity Sensor
As a first useful project on Arduino, a DHT11 sensor is a great place to start. The DHT11 is a simple digital temperature/humidity sensor that easily connects to any Arduino. Most sample programs just take the reading and output it to the serial port. This example code will let you connect a LCD screen and track the min and max [...]