tCam-Mini rev4 - (onboard antenna) Wireless streaming thermal camera board

tCam-Mini comes with a capable desktop application, running on Linux, Mac OS X, Windows, and iOS, making it easy-to-use, right out of the box.  Custom applications running on any platform can easily communicate with tCam-Mini via a socket interface.  Commands and data are transferred as easy-to-parse json strings.  

Capabilities

• The tCam-Mini camera exposes the full capabilities of the Lepton.
• v4 has a new hardware interface which allows the device to communicate directly with another micro-controller or SBC without having to use Wifi
• v4 now uses USB-C
• v4 comes with version 2.1 firmware
• The camera can operate in either Radiometric/TLinear (each pixel contains temperature data) or AGC modes (no temperature data in each pixel but better images).
• Simple json-based command set with communication of a TCP/IP Socket. Makes interfacing with the camera very simple from a custom application.
• AP or STA (client) Wifi modes (static or DHCP-served IPV4 address).
• Single image or streaming data modes.
• Control over sensor emissivity, gain and spotmeter location.

The companion desktop application makes it easy to use the camera and analyze the data from it.

• Display images or streams with multiple palettes.
• Save and load images or streams in files preserving the radiometric data for use later or by other applications. Two file formats: image and video (described in the github repository).
• Export images as jpg, png or tiff files.
• Copy current image to computer's clipboard.
• Histogram display and analysis of pixel populations.
• Spotmeter and up to four additional markers showing temperature at various points in an image.
• Graphing function to plot spotmeter and marker data over time.
• Graph baseline mode to allow comparing temperatures to a reference point in the scene (for example to compare a temperature to a blackbody constant).
• Export graph data in a text file for analysis by other programs.
• Print graph (or create a PDF on computers that can print to PDF).

Hardware Overview

• Espressif ESP32-WROVER-E Module (ESP32-D0WD0V3, 8 MB PSRAM, 8 MB Flash) with built-in antenna
• CP2102N-A02 USB to UART bridge with ESP32 boot loader control
• Multi-voltage power supply (3.3V, 3.0V, 2.8V, 1.2V)
• Dual color (Red/Green) status LED
• Factory Wifi Reset button