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beagleconnect-zepto

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Mirror of https://openbeagle.org/beagleconnect/zepto

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# BeagleConnect Zepto

![BeagleConnect Zepto](https://raw.githubusercontent.com/beagleboard/beagleconnect-zepto/main/images/zepto-render-full.png)

| Front           |  Back |
| :-------------------------: | :-------------------------: |
| ![BeagleConnect Zepto](https://raw.githubusercontent.com/beagleboard/beagleconnect-zepto/main/images/zepto-render-front.png)  | ![BeagleConnect Zepto](https://raw.githubusercontent.com/beagleboard/beagleconnect-zepto/main/images/zepto-render-back.png) |

* USB version has 1x USB + 1x JST
* JST version has 1x JST (power in) + 1x JST (power out)

## Hardware

* MSPM0 processor
* Friction-fit mikroBUS
  * No bottom-side components allow solder-down
* 1" square PCB
* QWIIC-compatible JST-SH
  * Full Grove function I2C/UART/ADC/GPIO
* TAG-CONNECT JTAG
* BOOT/USER pin hole
  * Consider keeping button separate to avoid cost

## Software

* Zephyr-based SDK
  * MCUBOOT-based USB bootloader (hard to brick)
* BeagleConnect firmware exposing mikroBUS to Linux/Zephyr hosts
  * Gateway function on USB
  * Node function on both USB and JST
* Micropython firmware
* Microblocks
  * Based on Zephyr and Arduino Core
* USB-to-UART
* USB-to-JTAG

## Accessories (kit versions available)

* 4-pin JST-SH to 4-pin JST-SH
* mikroBUS to 10-pin TAG-CONNECT JTAG/SWD
* 4-pin JST-SH to FTDI header
* 4-pin JST-SH to BeagleBone AI-64 3-pin JST-SH
* 4-pin JST-SH to BeagleY-AI 3-pin JST-SH
* 4-pin JST-SH to BeaglePlay 3-pin 0.1" pin header

## Marketing

* Extremely low-cost with high-level software
* Fixed firmware load for >1,000 sensors using Linux gateway
* Everyone has a different name for specific JST, so we probably should too -- BC4 (BeagleConnect 4-wire)?

## Conceptual layouts

![BeagleConnect Zepto USB mark1 - front](https://raw.githubusercontent.com/beagleboard/beagleconnect-zepto/main/image.png)

![BeagleConnect Zepto USB mark1 - back](https://raw.githubusercontent.com/beagleboard/beagleconnect-zepto/main/image-1.png)

### Feedback

* I'm concerned the above doesn't have the 4-pin JST-SH connection that I believe it needs.
* I believe we should get to a 1" square layout.
* I believe we can get by without the buttons.
* The USB interface will change when we get the updated MSPM0 devices with FS USB. (No need to bit-bang)

***

# Editing this README

When you're ready to make this README your own, just edit this file and use the handy template below (or feel free to structure it however you want - this is just a starting point!).  Thank you to [makeareadme.com](https://www.makeareadme.com/) for this template.

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