Quick Start
This guide introduces the FoBE Breakout BM8563 and how to use it.
Hardware diagram
The following figure illustrates the FoBE Breakout BM8563 hardware diagram.
Mechanical dimensions
FoBE Breakout BM8563 is a single-sided 25.4mm x 25.4mm (1" x 1") 1.6mm thick PCB with two SH1.0 4-pin connectors and a set of 4-pin 2.54mm header holes. Fixing by 6 x 1.6mm Screw holes.
Interfaces
The board provides two 4-pin SH1.0 connectors, all providing the same IIC connections for MCU control:
| Interface | Description |
|---|---|
| 3V3 | Power supply |
| GND | Ground |
| SDA | I2C bus data line |
| SCL | I2C bus clock line |
And a set of 6-pin 2.54mm header holes, providing the same IIC connections for MCU control, plus an interrupt pin and a programmable output pin.
| Interface | Description |
|---|---|
| INT | Trigger when the programmed timing conditions are met: Active Low |
| GND | Ground |
| 3V3 | Power supply |
| SDA | I2C bus data line |
| SCL | I2C bus clock line |
| OUT | CLK_OUT: Can output programmable square wave: Active Low |
Configuration Jumper
The board features two jumper pad:
| Interface | Description |
|---|---|
| LED-JUMPER | The PPS (Pulse Per Second) LED jumper. To save power, you can physically cut the trace between the pads of this jumper. You can later re-solder the jumper to reconnect the PPS LED. |
| IIC PULL-UP | By default, sda/scl are pulled up, you can physically cut the trace between the pads of this jumper if you don't need them. |
Programming
FoBE Quill nRF52840 Mesh Example
The FoBE Quill nRF52840 Mesh development board provides multiple digital gpio; pins D2, D1 are used in the example:
#include <TinyGPSPlus.h>
#include <SoftwareSerial.h>
......