The Tessel 2 is equipped with two 10-pin module ports to add sensors and other external hardware, two USB ports for camera peripherals and flash storage, a 10/100 supported ethernet port, and a microUSB connector for power and tethered programming.
- 802.11 b/g/n
- 580MHz Mediatek router-on-a-chip
- 48MHz SAMD21 coprocessor
- 64MB of DDR2 RAM
- 32MB of flash.
SpecsUpdate
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Pros
Pro NodeJS support out of the box
Out of the box it supports Node 4.x LTS and doesn't require any setup to use it.
Pro Co-processor system
Runs Linux and user application code on a 580MHz Mediatek router-on-a-chip, with an asynchronous 48MHz SAMD21 coprocessor for GPIO, ADC, I2C, SPI, PWM and UART programming
Pro Programmable via USB or Wifi
The process for deploying software, whether it's JavaScript, Python or Rust, is exposed the same way for both USB and Wifi connections.
Pro Easy to get started with
The Tessel 2's "Getting Started" experience requires little more than installing Node.js and a single package (the CLI) via npm. Complete walkthroughs for Linux, Mac and Windows are available and up-to-date
Cons
Con Very little memory
64 megabytes of RAM. This places it more in line with an Arduino style board than a SBC on the level of Raspberry Pi.