There is no difference between the breakout for the 55°x35° field of view and the 110°x70° field of view thermal cameras. There is also no difference in the code used with either thermal camera. The only difference is the length of the lens. The only way to tell which thermal camera breakout you have is to identify the length of the lens. The longer lens, shown above on the left, is on the 55°x35° field of view thermal camera and is approximately 11.25mm long. The shorter lens, shown above on the right, is on the 110°x70° field of view thermal camera and is approximately 5.7mm long.
- VIN - this is the power pin. Since the sensor chip uses 3 VDC, we have included a voltage regulator on board that will take 3-5VDC and safely convert it down. To power the board, give it the same power as the logic level of your microcontroller - e.g. for a 5V microcontroller like Arduino, use 5V
- 3V - this is the 3.3V output from the voltage regulator, you can grab up to 100mA from this if you like
- GND - common ground for power and logic
- SCL - I2C clock pin, connect to your microcontroller I2C clock line. This pin is level shifted so you can use 3-5V logic, and there's a 4.7K pullup on this pin.
- SDA - I2C data pin, connect to your microcontroller I2C data line. This pin is level shifted so you can use 3-5V logic, and there's a 4.7K pullup on this pin.