Overview Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather 32u4 FONA - our take on an 'all-in-one' Arduino- compatible + audio/sms/data capable cellular with built in USB and battery charging.
So, yeah. Use a battery! It will keep topped up when using USB, and allow the cellular module to draw current spikes without issue The JST connector polarity is matched to Adafruit LiPoly batteries. Using wrong polarity batteries can destroy your Feather The above shows the Micro USB jack (left), Lipoly JST jack (top left), as well as the 3.3V regulator and changeover diode (just to the right of the JST jack) and the Lipoly...
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URLs is comma separated, and you will only have to add each URL once. New Adafruit boards and updates to existing boards will automatically be picked up by the Board Manager each time it is opened. The URLs point to index files that the Board Manager uses to build the list of available &...
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Manager URLs option in the Arduino IDE preferences. https://adafruit.github.io/arduino-board-index/ package_adafruit_index.json Here's a short description of each of the Adafruit supplied packages that will be available in the Board Manager when you add the URL: • Adafruit AVR Boards - Includes support for Flora, Gemma, Feather 32u4, ItsyBitsy 32u4, Trinket, &...
Contributed. You will then be able to select and install the boards supplied by the URLs added to the prefrences. In the example below, we are installing support for Adafruit AVR Boards, but the same applies to all boards installed with the Board Manager.
To begin reading sensor data, you will need to download the Adafruit_FONA Library from the Arduino library manager. Open up the Arduino library manager: Search for the Adafruit FONA library and install it We also have a great tutorial on Arduino library installation at: http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use (https:// adafru.it/aYM)
Library (https://adafru.it/ncj) • Adafruit Feather 32u4 PCB files (https://adafru.it/nck) • Fritzing object available in the Adafruit Fritzing Library (https://adafru.it/aP3) The huge number of relevant app notes and datasheets for the SIM800H cellular module are over here in the FONA 800 tutorial (https://adafru.it/qpf) Feather 32u4 FONA Pinout Diagram https://adafru.it/z3B...
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