This product is not longer sold anymore. However, the OpenMV Cam firmware will continue to include support for it. This page will be left up for documentation purposes.
The Thermopile Shield gives your OpenMV Cam the ability to see heat. It features a 16x4 60°x16° field-of-view (FOV) sensor array capable of measuring object temperatures between -50˚C to 300˚C while measuring the room temperature (between -40˚C to 85˚C). Your OpenMV Cam's firmware has built-in support for controlling the Thermopile Shield using the fir module.
The Thermopile Shield is great for temperature measurement applications or security applications. For example, you can use the Thermopile Shield with your OpenMV Cam to detect the presence of heat which will allow you to detect if there is a person in the field-of-view. This makes the Thermopile Shield excellent for detecting people in pitch black.
Schematic & Datasheets
- Thermopile Shield Schematic (.pdf)
- Sensor Datasheet: MLX90621 (.pdf)
- Sensor EEPROM Datasheet: 24AA02 (.pdf)
- Regulator Datasheet: ADP121 (.pdf)
|Ambient (Room) Temperature Range||-40˚C to 85˚C|
|Target Object Temperature Range||-50˚C to 300˚C|
|Horizontal Resolution||16 pixels (60° FOV)|
|Vertical Resolution||4 pixels (16° FOV)|
|Idle||< 1 mA @ 3.3V (> 100 mA w/ Cam)|
|Active||5 mA @ 3.3V (145 mA w/ Cam)|
|Storage||-40°C to 125°C|
|Operating||-40°C to 85°C|