eVinci Technologies based in Canada have created a new Arduino development board called the Stronghold, which as the name suggests has been designed to provide a secure Arduino development board which comes complete with support for both 3G/GSM.
The Arduino Stronghold is equipped with MOSFET-based outputs with safety relay, support for GSM/GPRS/3G/GPS, with RS485 or K-Line as well as Protection and support for Wiegand keypad, although the keypad is not included as well as 50 other parts dedicated to protection.
Specifications of the Stronghold :
• Atmega2560 microcontroller
• Powered by external source through protection
• Build-in USB. Can detect USB connection in firmware.
• Programmable through USB or ISP
• SIM5320 (GSM/2G/3G/GPS) programmable through USB
• SMA active GPS and GSM antenna connections
• On-board 260kHz 3A 5V, 260kHz 3A 4.05V, 100mA 3.3V regulators
• 3-5 high-current 47A-rated MOSFET outputs. MCU to MOSFET gates are isolated by PS2501L. MOSFET outputs are protected by flyback diode and TVS. Unassembled RC can be used as snubber. Designed and tested to work with concurrent 500mA outputs (Heatsink locations are provided but are unassembled).
• separate Omron G5LA-14 DC5 safety relay, PTC, 5kw TVS, and trapezoid filter for outputs
• Protected inputs/outputs for a Wiegand keypad
• LM62 analog internal temperature • LSM303DLHC accelerometer/magnetometer/internal temperature
• TVS/GDT/Surge protected RS485 based on fault-protected MAX13442E (Code-compatible with MAX485)
• Ability to perform fault-protected pulse sensing (K-Line) through MAX13442E • 3-5 TVS/high-rate/range protected analog inputs.
• Access to 20MB of flash memory through AT commands or LUA programming in GSM module • Voltage reference of 2.5V
• Additional 1.6A-rated MOSFETS for supply control for accessories.
• Auto fuse holder, thermal cutoff, PTC, input schottky, 5kw input TVS, input trapezoid filter
• Programmable through Arduino IDE. Yet, NOT Arduino pin compatible.
• Possible additional 256kB EEPROM (Not assembled)
The development team behind the Stronghold Arduino development board explain more about its inspiration and features.
We got determined to build a big brother to development boards. Arduino allowed hobbyists to develop code easily. It created a community, and we decided to give our share. Many different boards were born, but rarely a board was designed that was well-protected for more real experiments and projects.
We especially liked a board with automotive applications (We are not promising any standards! The board is still provided as is). And so… Stronghold was born! It is the strongest development board made! By employing an Atmega2560 microcontroller, Stronghold can be easily used like any Arduino board, and can be programmed by Arduino IDE. Thus, Stronghold is Arduino-enabled.
For more information and full list of pledges available jump over to the official Kickstarter campaign page via the link below.